How To Keep Exhaust Manifold Bolts From Rusting

Discuss types of Internet connections, including wireless, satellite and cellular. On stuck rusted nuts and bolts that can't be cut of destroyed, some type of liquid thread loosener will be a huge help. The studs from the cast manifold to y pipe are seized. I removed the exhaust manigfold heat shield as the 2 bottom bolts had rusted through the shield and it was rattling somthing fierce. Well, the way we got it off was by using a Saws. The intake manifold has a sag in the middle for some reason where fuel can pool, be sure you have dried that out, and then I would blow it out with compressed air copiously, then seal off the intake opening with a home-made blank off plate Another option is the. Hi, you are probably going to get different answers on this, but the bolts are there to keep the manifolds tight against the heads. Best way to stop an exhaust rusting - Coatings. I installed my EFI's and had the exhaust shop route pipes from them, so that helps keep the manifolds from slipping and doesn't apply any excess force to the manifolds. Paint is the most common way to prevent rust in every application from bicycles to aircraft carriers. AMC not as bad, but still had to do a few. Nutcracker type sockets work well in these instances. Disassembly: A. They run nicer with a functioning heat riser valve. It says it converts rust into a "black primer". Stern-drive gasoline engine exhaust system leaks at manifold and riser are causing rust to form on surfaces around gaskets. they rust unless you use stainless which is to soft to hold in my opinion. The way to check that is with a dial indicator. A vehicles exhaust system can be one of the most common areas for rust. The manifold is designed to give minimum backpressure and turbulence. I had the dealership replace the manifold gasket the first time at about 40,000 miles before it got to. 304 Stainless is the highest quality stainless steel used in the automotive world, and it is most often found in exhaust tips, clamps, bolts and other small exhaust components where strength is very important. In my experience, exhaust manifold bolts can rust away pretty good as well as snap off. Your use of a different size wrench reminds me of another issue with exhaust manifold bolts. Firmly place the wrench over the bolt, keeping the wrench as far down on the bolt head as you can. The exhaust manifolds heat to around 1100-1200°. It was very clearly leaking from the furthest to the bow end of the port side exhaust manifold, between it and the engine. Re: Rust Removal from Manifold Last summer my 81 140 was running hot so after many hours of trouble shooting i discovered that my manifold was pluged, a differant engine which was laid up for a few years, I removed the riser and it looked good there. Gloves and eye protection are required. Remove the exhaust manifold heat shield. Exhaust manifold studs keep or remove Need some advice from members who have "been there done that". A year ago, after my boat was hauled and when I put the winter cover on, I saw (OK, I was reminded) that the exhaust elbow bolted to the aft end of the expansion tank above the exhaust manifold was getting rusty, and was weeping rust where it was attached. The bolts that hold the exhaust pipe to the engine, I have lock washers on the bolts, I've even used some loctite on the bolts, but they have come loose again on me. Spray it with penetrant 3. Likewise, the engine builder applied heat to the manifold bolts to avoid breaking them. Even if there isn't much rust, I never know when a bolt will snap. Paint the Fastener Heads. You're not paranoid and silly, just have way much not enough other things to keep you busy. Just unbolt them. I learned about it from Hot Rod magazine years ago. We just traded a 2002 Chevy Silverado 1500 HD with the 6. This makes it tough and you may find that it helps to hammer a smaller size metric socket on the heads to get them out. Then I cut the valve out of the heat riser in the passenger-side exhaust manifold so that the heat is never dammed up inside the engine. Intake/Exhaust manifold bolts and washers Post by AbandonedBronco » Mon Dec 03, 2007 8:36 pm Not really sure if they're washers, but I was wondering if anyone knows where to find them besides the dealer. The 3 bolt flange bolts that connects the Y pipe to the exhaust pipe came off easily. The new brass nuts came for the exhaust pipe flange and I found out one nut wouldn't fit, one stud had been changed years ago to a metric thread stud, crazy but true. 1997 - 2003 F150 - My "Triton tick" rusted exhaust manifold leak broken bolt fix and story. RE: Water leaking from exhaust manifolds, is this normal? Salt and wakeboard boats are a difficult combo. Even if there isn't much rust, I never know when a bolt will snap. If you paint your exhaust parts with a high temperature paint and then wrap them, the rust issue will either be reduced or completely eliminated. If it is the gasket there is nothing I have seen that is able to repair the leak without removing the manifold and applying a new gasket. It usually just burns off, but if the car is parked up hill, quite a bit will drain out. These prevent water from back-flowing into the engine. The thickness of the material to be welded will determine the heat setting and speed of the bead layment. Heating the part with a naked flame in this area is not advised either!. These Direct Fit Bolts Are For Mounting The Driver & Passenger Exhaust Manifolds For A V8-360 Jeep Engine. While I am waiting for the dishwasher to finish its cycle (the intake manifold is in there ) I am wondering how I can prevent the nuts and the tips of the studs from rusting. All modern exhaust pipes have been designed to be rust resistant but this only slows down the inevitable. Warm it up if possible 2. Also, I needed my Irwin Bolt extractor, for one bolt that I striped, trying to remove it. Classic Industries offers a wide selection of 1974 Chevrolet Truck parts, including 1974 Chevrolet Truck interior parts and soft trim, 1974 Chevrolet Truck exterior sheet metal, 1974 Chevrolet Truck moldings, 1974 Chevrolet Truck emblems, 1974 Chevrolet Truck weatherstrip and unique accessories, to nearly every nut and bolt needed for installation. Use copper anti-seize, torque it to spec with a calibrated wrench, and then mark with torque stripes. Preventing rust depends on how much you take care of your stainless. Some vehicles equipped with the 5. I torque the head or exhaust up to final specs the next day. I returned the first one to Wermopar and ordered one from RockAuto who assured me that their picture on the their website was accurate (OEM). 1 mile each way. My grandma's '85 LeSabre, bought new, needed a few hundred bucks worth of exhaust work in '96, and just before I got rid of it a few months ago, it developed a hole in the bottom of the catalytic converter. Found the bolt and 2" spacer laying on top of the exhaust manifold. Save time and energy by having the right hardware on hand when you need it. They cover all or most of the stud. I have a 2002 F-350 T-tag that is exactly 45 months old and had 25,600 miles on the odometer. This helps keep the exhaust ports from burning and discoloring. Also on the exhausts manifold theres a big build up of crud dirt salt Rust but only on the exhaust manifold very close to the engine (i wash my bike regularly) i would like to take the exhaust manifold off And polish them up silver again propper job. This will keep the rubber supple and help prevent breaking any of the metal. Sometimes the manifold mounting bolts are rusted away. Is it safe to put this converter on it and then put engine enamel over it, or should i just sand of the rust? also, should I use 500 degree engine enamel for the heads, or the 1200 degree stuff?. Allow to dry, and oil to prevent rusting if the heads of not aluminum. Knock the cups out that the bolts go into on the manifold with a chisel (or you wont get the new bolts in). I have not used them yet, but ARP has a very good reputation, so that might be another way to go. Spray the remaining broken bolts at the head with PB Blaster(10x better than WD40), let soak for a few minutes, then with vise grips unthread bolts from heads. Also had success heating studs then hitting with a candle so the wax wicks like solder, allowing it to break loose. For bolts I use grade 8 steel, don't need the strength but much better steel, doesn't rust as badly and won't stretch in heat cycles. contraction can crack the rust and make it possible to get them off. Then he said the other should be done while apart too. never-sieze on the threads will keep you from snapping the head off when it comes time to remove them. The nuts on my 124 sedan exhaust manifold kept coming loose until I realized there was a lock plate already installed. While I was under the wheelwell of my RV most of the day, I decided to change the exhaust manifold gaskets too since I have a small exhaust leak. Still no broken bolts, knock wood. How to Install a Full Exhaust System on a Volvo 940 I’m starting to think there are either little gremlins at work inside my car, or it's got a character of its own. Found 1 exhaust manifold bolt snapped, looks like it happened on original assembly, rust had formed at the breaking point. Used a nut splitter to cut rusted nuts from an exhaust manifold. The repairs to your exhaust system can vary almost as much as their prices to perform a simple oil change. (Photo Courtesy Street & Performance) Exhaust Manifolds. Header paint is available at many auto parts stores. I was wondering if anyone has used stainless steel bolts in their manifold? I was going to go with the Stage 8's, but they're too short so I'm trying to use something that won't rust yet still be strong enough to do the job. Used exhaust components and joints get stressed, seized, and rusted after use and need a lot of care during removal. The Dorman 674-899 Exhaust Manifold for your 2007. Bolt the driver side convertor to the exhaust system, then move the entire exhaust system forward into place. Home To get the rust off i like to use electrolysis. The way to check that is with a dial indicator. Use these high quality bolts to attach your intake manifold to the cylinder head. 1997 - 2003 F150 - My "Triton tick" rusted exhaust manifold leak broken bolt fix and story. Rust burns fast when exposed to the blue wrench. We have been installing them to add a little heat protection under the hood and also a little dress up in the engine bay. On the manifold bolts, should I run the engine til it's hot before trying them or just cold??? Have a good set of 6pt sockets. I'm having an issue with my 1978 222 with the Kohler K301AS in it, the exhaust manifold bolts keep coming loose. Plus: E-mail, blogging, and other ways to keep in touch while RVing. We just traded a 2002 Chevy Silverado 1500 HD with the 6. Re: Model L exhaust manifold bolt issue I had a real mess there myself and soaked the bolts in rust penetrant every time I walked past it for a month and I actually still have one in there I havent tried to get out yet but here's how Im fixing mine. If you're planning to swap in a 4. Used a nut splitter to cut rusted nuts from an exhaust manifold. exhaust manifold riser bolts ugh!-gctid684202 09-26-2015, 06:07 PM So when removing my exhaust risers this after noon to replace the gaskets and check for obstructions in the water ways 3 out of 8 bolts snapped (2 on the starboard side and 1 on the port side), and yes I did warm the engine up before losing the bolts, I have the port side. Step 1: Lift the hood and inspect the exhaust manifold. exhaust manifold riser bolts ugh!-gctid684202 09-26-2015, 06:07 PM So when removing my exhaust risers this after noon to replace the gaskets and check for obstructions in the water ways 3 out of 8 bolts snapped (2 on the starboard side and 1 on the port side), and yes I did warm the engine up before losing the bolts, I have the port side. The thickness of the material to be welded will determine the heat setting and speed of the bead layment. 8 automotive M6 bolt and using that as the two exhaust studs. Header paint is available at many auto parts stores. To remove a broken exhaust manifold bolt, you need a torch to heat and expand the metal to break the molecular bond between the threads. However, there is a large amount of rust on the exhaust manifold which detracts from this. RE: Water leaking from exhaust manifolds, is this normal? Salt and wakeboard boats are a difficult combo. If the bolt gets stuck you can just stick a large easy out through the hole and get it to turn. Only 2 bolt on each side were holding the manifold on. This will keep the rubber supple and help prevent breaking any of the metal. This Exhaust Manifold Hollow Mounting Bolt Helps Keep The Exhaust Manifold Mounted In The Center Holes & Make It Easier For Removal Many Many Years Later Even If They Accumulated Rust On The Threads. Much of the energy that drives the turbo is in the form of heat. Disconnect the exhaust downpipe from the exhaust manifold; there are two nuts on the exhaust side that are probably rusted in place. Bolt the exhaust manifold back on the head. You can also give our customer care team a call to place your order by telephone. Always use the proper tools 1. As above, what would anyone recommend for the stud and nut kit for the exhaust manifold to head. Best Answer: From my experience, bolts on engine exhaust manifold are likely to break when you try to remove them, and the bolt loosening fluids in this case rarely work. Hey dogdog yea mine is the 4 bolt. The nuts securing the bolts rust easily and, as they are usually placed in inaccessible areas, they become very difficult to remove. You dont want to cause distortions. This was a correct drive end, Ross wanted restoration, and I have so precious FEW CORRECT drive ends for AMC, this was the original to his starter - it was worth spending some time to save one. My buddy decided to go with headers and we are going to try and get the old manifolds off in a week or so. Most catalytic converter's have heat shields designed to keep heat away from the vehicle's undercarriage. PDI Big Boss™ Exhaust Manifolds deliver cooler exhaust temperatures and increased engine performance. This will keep the rubber supple and help prevent breaking any of the metal. Ok so I find myself again at odds 04 base model. Ask the Expert: What causes an exhaust manifold stud/bolt to break? The exhaust manifolds are formed from the factory using fine grain cast iron, and like most metals, it expands and contracts during duty cycles of heating and cooling. 8 engine will eventually have it: a crack in the exhaust manifold(s). The nuts securing the bolts rust easily and, as they are usually placed in inaccessible areas, they become very difficult to remove. Tabs are folded over to prevent bolt from turning. On the manifold bolts, should I run the engine til it's hot before trying them or just cold??? Have a good set of 6pt sockets. Making Exhaust Manifolds Look Good—and Keeping Them That Way. I have a 2002 F-350 T-tag that is exactly 45 months old and had 25,600 miles on the odometer. Ive sprayed them with pb blaster several times and as I stated ive been using a 28" 1/2" breaker bar trying to break em loose. I had the dealership replace the manifold gasket the first time at about 40,000 miles before it got to. A vehicles exhaust system can be one of the most common areas for rust. In the 70's - 90's GM would bend steel clips around the bolts to keep from loosening. Exhaust manifold bolts are rusting and breaking off leaving exhaust leak at the engine. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. The initial effort to break the bolts loose failed, and I feared I would break them off in the block. It could also mean that the cam lobe has ground down. Flange nuts/washers are new because the muffler/pipe was just off a couple months ago. The exhaust system runs hot in a "hostile" environment, so the rubber isolators eventually deteriorate and break, and the metal hangers and bolts tend to rust. Few tries with a MIG and nut and I got it out. Ive sprayed them with pb blaster several times and as I stated ive been using a 28" 1/2" breaker bar trying to break em loose. The exhaust manifolds connect to the cylinder heads where exhaust gases are pushed out of the engine. 25 tap, flange holes with M12/1. One of the most difficult jobs on a car is how to remove exhaust manifold bolts. They lower underhood. To learn more, see reviews below or submit your own. If bolts dont want to break free, slowly heat bolt until glowing hot, then use vise grips to unthread. This company is not yet accredited. They won't corrode and fuse with any kind of steel studs, and they won't come loose when real hot, unlike steel nuts. Only 2 bolt on each side were holding the manifold on. Since then I have used bolts sold as exhaust manifold bolts and not had that much trouble again. Want to know more about. The manifold shown in the picture has a fair amount of surface rust, but it looks like the bolt heads are still in decent shape. AMC not as bad, but still had to do a few. The bolts have an Allen head, and measure 6mm x 50mm. One of the critical pieces of your vehicle's exhaust system is a Ford F350 Super Duty Exhaust Manifold, which removes all the exhaust vapors coming from the motor's cylinders then sends the vapors through the exhaust system. Mine appear to be rusted solidly to themanifold. Two of the biggest most noticeable areas are the cylinder block which is made from aluminium and goes powdery (though some blocks are now sporting a vinyl coating to prevent this) and the exhaust manifold heat shield which rusts. If the manifold is cracked you can try the exhaust weld products that most auto parts stores sell. [See also the section under Exhaust:Exhaust Manifold Gasket and Studs Replacement] [Query:] I have an 86 760 Turbo that was rebuilt about 15,000 kM ago. Ask the Expert: What causes an exhaust manifold stud/bolt to break? The exhaust manifolds are formed from the factory using fine grain cast iron, and like most metals, it expands and contracts during duty cycles of heating and cooling. ACTION On the affected bank only, replace the exhaust manifold, manifold gasket(s), and install all new stainless steel exhaust manifold studs and nuts. Saw this about temperature rating for the Extend, might not work long term on the exhaust manifold: "One-step rust treatment goes on white and converts rust to a durable, black, metal-protective coating in 10 minutes. One furthur question. All you need is a battery charger, a bucket of water with baking soda and a steel rod. That explains the lock ring with the tabs. Read more Chevrolet reviews to learn about other models. Rusted and Broken exhaust manifold bolt removal? I'm thinking about buying some swivel impact sockets and extensions for electric impact gun. the smaller tip area gives higher psi. Basically, just used the cutting tip to blow out what was left of the stud. This is important to maintain original. Then I drilled a VERY small hole EXACTLY in the center of the grided flat stud (centerpunch). Scrub the manifold with the scrub pad, using it to apply your cleaning ingredient of choice. Found 1 exhaust manifold bolt snapped, looks like it happened on original assembly, rust had formed at the breaking point. Exhaust manifold studs keep or remove Need some advice from members who have "been there done that". It is best to heat fairly gently and evenly. Remove the exhaust manifolds. Whether you’re looking to add a rams horn style manifold to your 239, 272 or 292 Ford Y Block V8 engine or you’re looking to chrome out your existing rams horn exhaust manifold, this Totally Stainless 6-0497 Hex Head Stainless Steel Rams Horn Exhaust Manifold Bolt Kit has all the hardware you’ll need to complete your task. The bolts that hold the exhaust pipe to the engine, I have lock washers on the bolts, I've even used some loctite on the bolts, but they have come loose again on me. Still no broken bolts, knock wood. Just unbolt them. As far as I'm aware, it's at these flange connections where the leaks typically occur, not the manifold to head connections. Have had lots of problems with manifold bolts in the past with the other trucks. I had just had this motor out. Intake/Exhaust manifold bolts and washers Post by AbandonedBronco » Mon Dec 03, 2007 8:36 pm Not really sure if they're washers, but I was wondering if anyone knows where to find them besides the dealer. Didn't want to get into removing manifold,motor runs to good to take a chance breaking any more bolts removing manifolds then having to pull heads. Even if you have to cut the heads of the bolt off then heat the mainifold to get it off the studs that are left it is going to go easier with the flame. The Dorman 674-899 Exhaust Manifold for your 2007. all gaskets (cat, steel secondary, manifold to head), bolts, etc, and some spare exhaust studs (at least one always pulls out, and if you snap one you want to be prepared). I took my time and used my air impact ratchet to remove all the bolts. How to Install a Full Exhaust System on a Volvo 940 I’m starting to think there are either little gremlins at work inside my car, or it's got a character of its own. More like a kit than a single part, Dorman exhaust manifolds include the gaskets for an easier installation. If you use a torch, be sure you have removed the carb first, and sealed off the gas lines. And the exhaust does have flexibility as the manifold heats up and slips around inside the oversize bolt holes. If need be, you can also use SAE washers (as shown in you photo #3) for an adjustment to the bolt's length as to prevent bottoming out prior to fully clamping the manifold. The secondary gasket to use if you have a Dremel or a good punch is the steel Z gasket #20691-01P80. Knock the cups out that the bolts go into on the manifold with a chisel (or you wont get the new bolts in). A year ago, after my boat was hauled and when I put the winter cover on, I saw (OK, I was reminded) that the exhaust elbow bolted to the aft end of the expansion tank above the exhaust manifold was getting rusty, and was weeping rust where it was attached. Stainless steel. Go ahead and cut off the piece of exhaust pipe you need to replace. The exhaust system runs hot in a "hostile" environment, so the rubber isolators eventually deteriorate and break, and the metal hangers and bolts tend to rust. Even though removing the exhaust pipes is only a few nuts and bolts they will probably be rusted on. All, I removed a bolt from each side for a better look. Tabs are folded over to prevent bolt from turning. – Pᴀᴜʟsᴛᴇʀ2 ♦ Jun 9 '15 at 22:26. As this happens, the exhaust manifold loses efficiency in its job of releasing the gases, and it begins to foul the atmosphere, contributing to smog and endangering the driver and passengers. How to remove rusted exhaust bolts. Is there a geographical component to the exhaust manifold bolts breaking? Starting the truck at 20 below has to be tough on things. Plus: E-mail, blogging, and other ways to keep in touch while RVing. Remove the exhaust manifold bolts. I left the O2 sensors on the Y pipe and disconnected the electrical plugs. Found the bolt and 2" spacer laying on top of the exhaust manifold. Consider painting. The problem here is. Normal cast iron surface rust: The turbo was a little scaly/crusty: I've only had poor results using spray-on manifold paint in the past, and removing the exhaust manifold for this project was overkill for my needs. Tap them with a hammer to break the rust bond? If they break off, what drill out and "Heelicoil" ? Is there any danger of breaking through to a coolant passage? Your thoughts, Thanks. How can you judge the torque on the one nut, as the three others you can get a torque wrench on the nut you can't. Warm it up if possible 2. Learn more about Fel-Pro quality gaskets that are specifically designed for the repair environment, find your car part , or find where to buy your auto part today. The 3 bolt flange bolts that connects the Y pipe to the exhaust pipe came off easily. Vehicle wobble or shake in the rear at highway speeds or after driving over a bump: This usually indicates worn rear control arm bushings. The suggestion to get Headers is a Brilliantalbeit Pricey Solution!. The final item of the system is the exhaust manifolds which if the spark plugs interfere with the removal need to be removed prier. I can get most of the bolts out with no problem but a few are siezed and the allen heads are stripped out. Then the heads had to be milled and possible valve job, etc. The kit includes nine stainless steel studs to replace all the exhaust manifold studs on the DSM. Pop Quiz: The owner of a 30' powerboat hops aboard his boat one day to go for a cruise, but his inboard V-8 engine is slow to start. Re: Rust Removal from Manifold Last summer my 81 140 was running hot so after many hours of trouble shooting i discovered that my manifold was pluged, a differant engine which was laid up for a few years, I removed the riser and it looked good there. Ive sprayed them with pb blaster several times and as I stated ive been using a 28" 1/2" breaker bar trying to break em loose. I am using Klean-Strip rust converter. Funny you say that. WD40 left to soak in for a while works well, and is much cheaper than £35! At something like £4 for the big cans, it's worth a try. When you winterize leave them full of antifreeze. Despite of heating (by a little gas welding torch) every exhaust manifold nut before turning, one stud snapped. The y-pipe coming of the exhaust manifold is toast. I just thought to use a 14mm this morning. Both can be welded with success. 7 liter hemi engines. AMC not as bad, but still had to do a few. 7l are Metric size 8-1. wish to use small plastic bags to group manifold bolts together, water pump bolts, etc. just noticed i have i cracked exhaust manifold left side driver side i'm not sure if its leaking yet its next to bolt hole were power steering pump bolts on on now that being said does any one have a nice one the want to part with so when this one starts to leak i'll have one i'm also thinking of maybe headers but trying to keep car stock i kind of like that look does any one have ideas on. Examine the entire length of the exhaust from the engine all the way down to the tailpipe and look for any cracks or holes, especially where one section meets the next e. 1-liter engine has a notorious weakness, a failure mode that GM will not cover after the warranty expires. The manifold gaskets are not leaking but I need to remove the mainfolds to replace leaking valve cover gaskets. I used a die grinder to cut the bolts. 5-2012 Dodge 6. While your engine is still hot, you'll want to crack loose these six bolts on your exhaust manifold. The exhaust system is composed of pipes and tubing designed to streamline vehicle operation while maximizing vehicle performance and efficiency. 3 equiped Ford trucks operating in the rust belt have rotted manifolds with broken hardware or rust jacked hardware. I'm starting to notice I'm dealing with excessive rust on the exhaust header, especially towards the bottom, and that where it mounts with the down pipe and flex pipe are also very rusted, the wire/ mesh around the flex pipe is almost all off. Surface rust must be present. 8 Proteges, both turbo and naturally aspirated. One of the most difficult jobs on a car is how to remove exhaust manifold bolts. Many auto makers for years did not use an exhaust manifold gasket as the manifold and cylinder head were made of very similar materials and did not need a gasket. Stock exhaust manifolds are made of cast iron which, while long lasting, does not do the job of getting heat out as well as a performance manifold (which may be ceramic lined or steel coated). I will use a couple of the mounting bolts or studs to keep the surfaces at that distance and parallel to each other until the silicon has firmed up quite abit, usually 45 minutes. This simple heat shield bolts into a stock bolt locations on the exhaust manifold with hardward that we supply. tips or tricks for removing REALLY rusted on exhaust nuts/bolts? After seeing the rust on the flange bolts, I made one quick attempt with a socket, then went. Ask the Expert: What causes an exhaust manifold stud/bolt to break? The exhaust manifolds are formed from the factory using fine grain cast iron, and like most metals, it expands and contracts during duty cycles of heating and cooling. If they have the typical age/rust on them, it may prevent you from torking them down far enough to completely engage and seal the flange gasket. Remove the exhaust manifolds. Hi Guy Any of you who have gas engines have problems with your manifold bolts rusting out. Since this sounds like a planned tear down, start with several days of soaking them down with your favorite rust penetrant. The manual mentions using some sort of non setting grease. – Pᴀᴜʟsᴛᴇʀ2 ♦ Jun 9 '15 at 22:26. The champion of methods for removal of stubborn broken bolts is to drill them out, using a left hand drill bit and a reversible drill. Next, loosen up the collector and take out the bolts that are holding the manifold on. Ok so I find myself again at odds 04 base model. Diet Coke doesn’t contain the sugars so it’s generally easier to clean up and doesn’t attract ants. My whole goal is to Not remove the exhaust manifold from the engine with 176k New England miles on her. This Exhaust Manifold Hollow Mounting Bolt Helps Keep The Exhaust Manifold Mounted In The Center Holes & Make It Easier For Removal Many Many Years Later Even If They Accumulated Rust On The Threads. Removing the exhaust manifolds is pretty straight forward stuff. And replace everything with GR8. Mount the engine on a stand to perform the following: 1. The rear part of the muffler broke apart just before the actual piping. So I removed the manifold and with a coat hanger and a high pressure washer I cleaned it out. As for lasting, the weld itself will likely be fine, but it may crack again within 2" of the weld, for the same reasons that it cracked originally. The exhaust manifold on my 1999. Tap the remaining manifold bolt holes so that the bolts will thread back in easily. Tryan, thanks for the input on the never-seize products. Re: Rust Removal from Manifold Last summer my 81 140 was running hot so after many hours of trouble shooting i discovered that my manifold was pluged, a differant engine which was laid up for a few years, I removed the riser and it looked good there. Then the heads had to be milled and possible valve job, etc. Failure to follow these instructions may void the warranty. He said it almost imposible to put the manifold back on once you take it off because they warp so bad. Average failure mileage is 64,000 miles. How to Change an Exhaust Manifold on a Expedition Lift the front end of the Ford Expedition high enough off the ground to easily access the undercarriage of the truck lying on the ground. If the head of the bolt is rounded, I suggest a set of grip. FOR VAUXHALL ENGINES. 25 tap, flange holes with M12/1. Insert pin or hex key into the orifice to keep tension off of the pulley as shown via white arrow. Just get all new bolts,spacers,gaskets right from Cummins and replace all the hardware. Go ahead and cut off the piece of exhaust pipe you need to replace. The bolts have an Allen head, and measure 6mm x 50mm. Also writting the exhauset bolts being locked could mean something different. Loosen the manifold bolts evenly to remove the manifolds, these can be heavy. Have been fighting the exhaust manifold bolts/nuts on my '38 Zephyr v12 flathead. my heads and exhaust manifolds are covered in rust. Your use of a different size wrench reminds me of another issue with exhaust manifold bolts. Learn more about Fel-Pro quality gaskets that are specifically designed for the repair environment, find your car part , or find where to buy your auto part today. exhaust manifolds and risers which are a direct bolt-on, no modification installation. o header will be a tough fit with the front axle, unless you modify the front axle's pinion mounting. So while the rest of the engine bay looks great, the exhaust manifolds are often rusted and grungy. just noticed i have i cracked exhaust manifold left side driver side i'm not sure if its leaking yet its next to bolt hole were power steering pump bolts on on now that being said does any one have a nice one the want to part with so when this one starts to leak i'll have one i'm also thinking of maybe headers but trying to keep car stock i kind of like that look does any one have ideas on. Many auto makers for years did not use an exhaust manifold gasket as the manifold and cylinder head were made of very similar materials and did not need a gasket. Obviously, that isn't a problem if SushiChamp bought their car brand new, but if it's used, the identity of the manifold is in question. 7 liter hemi engines. This lightweight manifold uses a layer of oxide to prevent rusting. I put the bolts back on pretty much as tight as I could (lots of leverage, lots of grunting) but it occurred to me later that maybe they were a bit hard to get off because they were rusted a bit and also had threadlock applied. More like a kit than a single part, Dorman exhaust manifolds include the gaskets for an easier installation. I had a cracked manifold and broken bolt and a busted cat, so I had to do something and decided the headers was the best route. In the 70's - 90's GM would bend steel clips around the bolts to keep from loosening. Salt spreaders suck!. This is a gauranteed way of not wringing the stud an stops making an exhaust removal a night. Get a good cobalt drill, real cobalt, use tape to mark the thickness of the manifold flange and drill to give yourself a center point of the broken part of the bolt for the ez out tool to be centered and work. Ask the Expert: What causes an exhaust manifold stud/bolt to break? The exhaust manifolds are formed from the factory using fine grain cast iron, and like most metals, it expands and contracts during duty cycles of heating and cooling. Don’t round off the head of the bolt, and DON’T use so much force you break the bolt. It was very clearly leaking from the furthest to the bow end of the port side exhaust manifold, between it and the engine. The design of the manifold and the seal provided by the gasket assist in exhaust scavenging, where gas exiting from the cylinder leaves a vacuum which pulls in more of the air/gas mixture. I took off the intake/exhaust manifold as part of my turbo rebuild on my 1982 300SD and have a couple questions. Tighten it a little bit 5. The PO had work done on the exhaust and the tabs were not bent back to retain the nuts. The final item of the system is the exhaust manifolds which if the spark plugs interfere with the removal need to be removed prier. Don't expect the 182 manifold to link straight to your 172 center section!. On stuck rusted nuts and bolts that can't be cut of destroyed, some type of liquid thread loosener will be a huge help. The first tool is the rivet gun and narrow tool. Exhaust systems are noted for sharp edges, flaking metal and rusted bolts. Examine the entire length of the exhaust from the engine all the way down to the tailpipe and look for any cracks or holes, especially where one section meets the next e. 7 liter hemi engines. all standard shipping orders over $49.