Easy to use parts catalog. Once I get the bolts and manifold out should I try to vice grip the broken bolt out?. Folllow al the pipes coming out of the engine - take pics of all of them and follow them back until they bolt to the next exhaust piece. You dont want to cause distortions. My Valiant, slant six, has a small coolant leak out of the exhaust manifold bolt number 6. Scrub the manifold with the scrub pad, using it to apply your cleaning ingredient of choice. Removing exhaust manifold bolts is often a lengthy, difficult and frustrating task for motor mechanics. 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. I don't think you would run into a problem with the temps and loads associated with an exhaust manifold. You're not paranoid and silly, just have way much not enough other things to keep you busy. Better to be prepared ahead of time than to be stuck waiting for new parts from another country after you've disassembled everything. And these exclusive. So I removed the manifold and with a coat hanger and a high pressure washer I cleaned it out. Remove the fuel system, intake and exhaust manifolds. Sometimes the manifold mounting bolts are rusted away. I wanted to know what the best way to prevent corrosion on the bolts in case I need to reverse mod for some reason. To note, you'll see the same rust problems develop on even many of the more expensive components, although a few would be quick to defend these select products for some reason. Re: exhaust manifolds rust!! Air is the worst thing for your manifolds. Break nuts loose on exhaust manifold to Y-pipe Aug 10 2016, 11:58am Heat the nuts up as much as you can with the little torch, and then douse the studs (try not to hit the nuts) with a strong stream of water from a Windex bottle of some sort. Have seen the ross sport ones but didn't want to really spend £150 on less than ten studs and nuts. there will be a. I think that may help prevent exhaust manifold bolt breakage--a common problem with this engine. They run nicer with a functioning heat riser valve. Just be sure to only FINGER tight ALL the bolts first, including the lower bracket bolt, before you torque. Warranty didn't pay squat for a job that you had to unbolt and lift the truck cab off the frame to get at the rear manifold bolts (where they always seemed to break). Now with the GM I hope to have an improvement. I recommend undoing the backmost bolt first, and leaving one of the middle bolts until the end. Bolt the exhaust manifold back on the head. Remove the nuts on the bolts. Oxidation happens. I have noticed that the manifold itself is already rusting in places. Don't let your tool push the bolts sideways as you turn the bolt out! The original GM manifold is a very high-failure item; I sure hope this Dorman is a longer-lasting product. Since this sounds like a planned tear down, start with several days of soaking them down with your favorite rust penetrant. Would like to change the exhaust manifold on a 580k. Because your exhaust system is under the vehicle, these exhaust flange bolts, nuts, or studs can rust, and may break if removed. Keep it coming. Salt spreaders suck!. Tips and Warnings Park the vehicle in an airy space to avoid the suffocation caused by the exhaust fumes. When I went to pull it apart, I could see why - the manifold bolt in this location was loose. 1997 - 2003 F150 - My "Triton tick" rusted exhaust manifold leak broken bolt fix and story. 9 x Stainless Steel Exhaust Manifold Studs and Flange Nuts. 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. [Diagnosis:] The exhaust manifold gaskets on the B230F tend to blow out every once in a while. The exhaust system is composed of pipes and tubing designed to streamline vehicle operation while maximizing vehicle performance and efficiency. On my OMC, I put one of the center bolts in the head, then set the manifold gently on that bolt and insert the farthest end bolt though the manifold and into the head. Hey dogdog yea mine is the 4 bolt. ARP offers some extra strong exhaust manifold bolts for LS engines in both alloy and stainless. Tip : It works best if you can spray the bolts with the oil and then go do something else for a couple of hours. The excessive heat they endure tends to prevent any product from doing any quality job of preventing rust. All, I removed a bolt from each side for a better look. Why do you see so many great cars trashed or customized in some rediculous way. Lift out the old gasket and tuck the newone in. And as we all know, rust spreads. The Chevy 3. One thing to keep in mind if any of you are replacing your 2. 25 tap, flange holes with M12/1. but regardlessSLOT THE BOLT HOLES in the manifold flanges You can clamp the exhaust down tight enough but you CANT keep the head and the manifold from GROWING when they get hot. 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. All in all, these were some of the methods to get rid of stubborn bolts. How to fix the air intake manifold causing rattle noise while accelating Car Experts, My car has a rattle noise while accelating, mechanic said it is not a big safety problem ,but the repair for this air intake manifold will cost around $600. They cover all or most of the stud. Ive read earlier posts about guys getting this covered under the 7yr. Don't let your tool push the bolts sideways as you turn the bolt out! The original GM manifold is a very high-failure item; I sure hope this Dorman is a longer-lasting product. I used a Sawz-All (reciprocating saw) on the upper bolt and a Dremel cutting wheel on the lower one. remaining bolts (bolts 3,6 and 7) and remove the exhaust manifolds. I have run F250's since 1990 --3 of them. I just used a torch on the chevy, after breaking off a spline-drive extractor in the almost-perfectly-centered hole. 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. What is the best way to remove heavily rusted exhaust manifold bolts without damaging the aluminum heads. Ill keep on em. Oxidation happens. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Some stuff ive found that works better then anything Loctite freeze and release. Your use of a different size wrench reminds me of another issue with exhaust manifold bolts. 5-2012 Dodge 6. It is broke off 1/4 below so I cannot get any type of grip on it. For example, exhaust manifold studs are notorious for corroding the shanks thin as twigs and just as easy to break. Header paint is available at many auto parts stores. The reason I am replacing it is because when i removed the old one to fix a leak where it joins the down pipe i managed to shear all 3 of the studs at the. CAUTION Caution: In order to reduce the chance of personal injury and/or property damage, carefully observe the instructions that follow. I have run F250's since 1990 --3 of them. I live in the south where we don’t have extreme low temps, or salted roads in the winter to weaken the bolts with rust. Basically, just used the cutting tip to blow out what was left of the stud. Remflex exhaust gaskets come in a standard 1/8" thickness and are designed to crush 50% allowing them to fill gaps in the flange surface up to 1/16". When your exhaust manifold is not working, your car will fall short on emissions checks and might permit unsafe exhaust gases into the cabin of your car. I removed the exhaust manigfold heat shield as the 2 bottom bolts had rusted through the shield and it was rattling somthing fierce. Get a fair section of the downpipes with the donor LS engine to ensure you have the new-style flange. Choosing the Correct Coating for your Exhaust Manifolds. Rusting bolts in exhaust manifold Anyone heard of or dealt with any rusting bolts in the exhaust manifold on 2004 or newer or even F-250 & F-350 trucks? I've had family in Michigan tell me of the problem and I guess it's a known problem but no one at the dealers will talk about it. The heat shield works by just maintaining an air gap between the exhaust and the heat shield. It depends in what way the bolts won't come undone. FOR VAUXHALL ENGINES. my heads and exhaust manifolds are covered in rust. Scrub the manifold with the scrub pad, using it to apply your cleaning ingredient of choice. (both vehicles needed the exhaust manifold gasket replaced at the same time. I realize this is an old thread but I thought I'd give my opinions of 44-30. The exhaust system is composed of pipes and tubing designed to streamline vehicle operation while maximizing vehicle performance and efficiency. I got the hole drilled with a 9/64 bit. An example of the perils of alloy steel bolts is the 12mm exhaust manifold bolt my friend Brian broke off in the head of his 12V while trying to remove it with a 3/8" drive ratchet, or the 2 12mm turbo mount studs I broke off (and had to extract by TIG welding a nut to them) with a regular box end wrench. With the ability to vary the flow of exhaust gasses across the turbine wheel, variable geometry turbochargers (VGT’s) get us as close as possible to having the best of both worlds. When we used to run out boats in salt we would completely coat the motors with rust-oleum clear before the first time they went into the water. Likewise, the engine builder applied heat to the manifold bolts to avoid breaking them. I only need the time to mount it on my 2. I was very careful about saw blade placement, but still scraped the paint some on a valve cover. With the exhaust system cool, disconnect the exhaust pipes from the manifolds. 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. Just to clarify, the Carnewal option will deal with the corroded studs at the flange joints between the manifolds and rest of the exhaust system, not the bolts that attach the manifolds to the heads. Read more Chevrolet reviews to learn about other models. but there are a couple of things to keep in mind: first, all the WD-40 in the world won't do much good if it can. Next, loosen up the collector and take out the bolts that are holding the manifold on. Calyx maintains any cast-iron part of exhaust systems and keeps. Dodge Dakota Exhaust Manifold Bolts May Break - 171 reports. The manifold gaskets are not leaking but I need to remove the mainfolds to replace leaking valve cover gaskets. Finding the lock is the problem. As far as I'm aware, it's at these flange connections where the leaks typically occur, not the manifold to head connections. Drill the casting and broken stud about 1/8 inch deep. When trying to remove a reluctant bolt, choose a quality socket wrench with as much leverage as space permits. Located on the front and rear bolt positions when installed. will the stainless steel/aluminum combo cause problems? like become permanently fused together or loosening more than. I don't think you would run into a problem with the temps and loads associated with an exhaust manifold. you can tell by opening the compartment and listening to the motor run. It is best to heat fairly gently and evenly. Why VGT Turbo’s Fail—And How You Can Prevent It. Walloper This post is not being displayed. All the oxygen is removed from the iron turning it back to iron. Put anti-seize on the bolts to help them come apart in the future. Now you have a 3/8 diameter pilot hole for centering your 3/8 drill bit or better yet the center drill with 3/8 shank ( I forget the number on that ). This company is not yet accredited. Performance diesel exhausts are available in a variety of outlet styles and include everything you need for a simple bolt-on installation. Consider painting. The bolts turned right out without binding. I realize this is an old thread but I thought I'd give my opinions of 44-30. The main purpose of a gasket is to compensate for different expansion, contraction rates of dissimilar materials like aluminum and cast iron. Then he said the other should be done while apart too. You can also use some crumpled aluminum foil to wipe away the dissolved rust. I'm moving it over here so it doesn't get lost in cyberspace. The majority of exhaust manifolds are more akin to tubular exhaust headers with attached catalytic converters. I too have broken exhaust manifold bolts on my 2003 Sierra 2500 HD with 6. I take it there gonna be Alan key bolts which is no prob as I have a good quality set of keys I use for work. So get a new gasket, bolts, and lock-washers, and put them together at the proper torque. If they do crumble or break, replacement kits are relatively inexpensive. Back in March 10 I heard the exhaust leak and thought it was the exhaust gaskets, however it was the manifold bolts. Hi, you are probably going to get different answers on this, but the bolts are there to keep the manifolds tight against the heads. The y-pipe coming of the exhaust manifold is toast. my heads and exhaust manifolds are covered in rust. Vehicle wobble or shake in the rear at highway speeds or after driving over a bump: This usually indicates worn rear control arm bushings. Then he said the other should be done while apart too. As above, what would anyone recommend for the stud and nut kit for the exhaust manifold to head. Removing exhaust manifo A safe, fast and efficient way to remove rusted, inaccessible exhaust manifold bolts using the Mini-Doctor Venom. Calyx Manifold Dressing is a cleaner/polish that’s ideal for a quick dress-up of the underhood area, requiring very little prep. (The good quality, variable speed, 3/8" models, which produce good torque at low RPM, work best. When I place my hand over the 2. Need advice. Then, removing the exhaust manifold and clamping vise grips on it and unbolting it. Exhaust Manifold Bolt Removal. The secondary gasket to use if you have a Dremel or a good punch is the steel Z gasket #20691-01P80. Constructing a manifold that will allow for as much heat retention as possible is an obvious goal, and it can be achieved in several ways. I have a method that I have used on D Radiators,520 / 620 exhaust manifolds and many other applications in the NATURAL GAS industry were excessive head was part of the by product. But I think the most appropriate answer is: why would you want to prevent all rust?. Your parcel will have a unique tracking number which will be sent to you via email on dispatch so you can keep an eye on your delivery. Normal? Also at the advice of my engine builder I did NOT use a gasket for the exhaust manifold. On my OMC, I put one of the center bolts in the head, then set the manifold gently on that bolt and insert the farthest end bolt though the manifold and into the head. Part of the trick to this is which bolts to have tight and which loose. I've jacked up the exhaust on a front wheel drive 4cyl before so I didn't have to remove the manifold bolts. Heating the part with a naked flame in this area is not advised either!. What should I spray the rusted bolts with. So get a new gasket, bolts, and lock-washers, and put them together at the proper torque. The manifold is designed to give minimum backpressure and turbulence. Stainless steel will prevent rusting, but you don't want to use bare stainless steel nuts. Then call it a day. He said the manifolds warp and break off the bolts. Engines produce dangerous gases as a byproduct of the combustion process. If bolts dont want to break free, slowly heat bolt until glowing hot, then use vise grips to unthread. This is simply a penetrating oil designed to remove rust on screws, nuts & bolts that are stuck. Drop gasket in place. 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. 8T Turbo to Manifold Exhaust Gasket. CAUTION! Make sure rags are removed from exhaust manifold prior to reinstalling turbine housing! Use the new gasket provided to connect the Install the probe in the manifold. engine block and exhaust manifolds) all parts of the engine are cooled with circulated treated fresh water. there will be a. After you cut the heads off the bolts holding the intake and exhaust manifolds together you will need a torch (hot wrench) to warm up the sire of the intake manifold beside the headless bolts. 5 Golf keeps coming loose and causing a horrible whistling noise/loss of power. 25 petrol and have new gaskets, studs, nuts and bolts for the hot box and manifold. It seems to me this manifold is not cast but forged. There are a few ways to clean your manifolds- blasting, wire wheel, or chemical stripping. Over time, your exhaust manifolds are going to encounter various issues. Be sure to remove plug wires, but leave plugs in to keep chips from entering the cylinders. Your use of a different size wrench reminds me of another issue with exhaust manifold bolts. When I was changing my oil I noticed the left bolt on the exhaust manifold was loose, so I took off the heat shield to check the other nuts/bolts and saw this. This Kit Is Specifically Made For All Jeep Grand Wagoneers, Full Size Wagoneers , Full Size Cherokees Including The Cherokee Chief, Jeep J10 & J20 Pick-Up Trucks From 1974-1991 With The V8-360 Engine. I don't want to over tighten the cheap Chinese studs in the block because I don't want to strip it. The y-pipe coming of the exhaust manifold is toast. Removing exhaust bolts is often a lengthy, difficult and frustrating task for auto mechanics. The one thing that makes me hesitant is how easy the bolts will come out. Whether it's to replace the manifold itself or to get at other parts inside your engine, off the bolts must come. 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. Surface rust must be present. 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. The first tool is the rivet gun and narrow tool. Position the engine on its mounts and tighten the mounting bolts. You need to actually open the engine up and replace/repair the bad lifter. Basically, just used the cutting tip to blow out what was left of the stud. ZAFIRA 98>12. This stuff is by far far the best penetrant I've ever used for exhaust manifold bolts. I'm guessing it's gonna start leaking real soon now. Click to expand If you powdercoat the exhaust manifold, it will just burn off. As above, what would anyone recommend for the stud and nut kit for the exhaust manifold to head. Paint the Fastener Heads. After one hour use scotch bright to rub the exhaust with chemical and then wipe off all chemical. Install the supplied gasket onto the cylinder head. Due to the constant heating and cooling of these bolts, rust commonly forms on the bolt threads, requiring a solvent to be used to remove or loosen the bolts. Despite of heating (by a little gas welding torch) every exhaust manifold nut before turning, one stud snapped. 9 which is the metric equivalent to grade 8 Bolt Grade Markings and Strength Chart. Failure to follow these instructions may void the warranty. I've seen this on some engines to keep the exhaust manifold bolts from turning. 1-liter engine has a notorious weakness, a failure mode that GM will not cover after the warranty expires. Now you've got room to access the bolts holding the exhaust and intake manifolds in place. Save time and energy by having the right hardware on hand when you need it. No tech liked chiseling them off the bolts, so many were not reinstalled. And there was no way to remove the bolts holding this y-pipe to the manifold, they were there 19yrs in a northern climate with lots of road salt, tough winters, and never in a garage. Can anyone recommend the best way to prevent the rust? I guess I'll never be able to stop it completely but i would prefer it to last a bit more than a year before going rusty again. Air always accelerates the rusting process. Removing exhaust manifold bolts is often a lengthy, difficult and frustrating task. 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. The exhaust manifolds heat to around 1100-1200°. And the rest you should be able to work out. Spray it with penetrant 3. 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. A safe, fast and efficient way to remove rusted, inaccessible exhaust manifold bolts using the Mini-Ductor Venom. Install the supplied gasket onto the cylinder head. Then let them cool back down. 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). Salt spreaders suck! I have seen exhaust manifolds rust through on a salt spreader. I also installed my MBRP SS exhaust so needless to say, the sound is completely. If the bolt gets stuck you can just stick a large easy out through the hole and get it to turn. Remove the exhaust manifold heat shield. You don't state the make, model but some exhaust manifold bolts need thread sealant to prevent a water leak through the head thread, you might want. After watching a few videos and reading up on the material I decided it was time to replace my broken exhaust manifold bolts that were causing the infamous exhaust leak in my 2009 5. Purchase a ca n of Genuine GM Fluid 88862628 Rust Penetrant and Inhibitor, and start spraying your exhaust manifold bolts daily at least a week before you start trying to remove them. 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. 2 top bolts came out fine but the bottom bolts seem round with a very shallow and not the right shape to put a socket on it. One stud was broken off so short that I had to grind it flush with the flange. Choose the best tool for the job. 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'm moving it over here so it doesn't get lost in cyberspace. As an example, if a performance exhaust manifold has been installed on the engine, it's possible that the type of bolt suggested by the car's manufacturer won't work. The majority of exhaust manifolds are more akin to tubular exhaust headers with attached catalytic converters. The repair manual recommends replacing all nuts, bolts, and gaskets when the exhaust is removed. Once I get the bolts and manifold out should I try to vice grip the broken bolt out?. Rust jacking is a term used when rust expands and causes stress between two surfaces such as a brake lining lifted away from its steel backing or when rust. 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. Now two months later it sounds loud again. So I removed the manifold and with a coat hanger and a high pressure washer I cleaned it out. And how to deal with a manifold gasket leak. Secure the driveshaft up with a piece of wire to keep it secure and out of the way. The rust removers and breakers are thin enough to pass through between the rust particles and make them a little slicker so they can slide past each other the bolt drill out method has another feature. Inspect the exhaust and intake mounting surfaces of the cylinder head and remove any rust or carbon that might prevent the TorqueTube or intake manifold from sealing. will be on the exhaust manifold) there will be a. At least one on each side. To help insure maximum durability and corrosion resistance, Magnaflow® Exhaust Systems are hard anodized inside and out to a battle ship gray finish and are also available polished. Cast iron exhaust has been around for many, many years and has been doing the job wonderfully. Some good penetrating oil soak should help. The problem is that one of the exhaust manifold bolts has snapped off and when the turbo is under boost, it whistles. Hi Guy Any of you who have gas engines have problems with your manifold bolts rusting out. This usually means that factory exhaust components aren't even aluminized, so they turn bright orange with rust very quickly. In a FULL system (i. Shock freezes the bolt/rust to crack it and let the penetrating oil into it. In the 70's - 90's GM would bend steel clips around the bolts to keep from loosening. Remove the exhaust manifolds. Making Exhaust Manifolds Look Good—and Keeping Them That Way. I have switched to my new 2013 2500Hd last year. I have 2 cats up on either side of the transmission just below the exhaust manifolds. A simple coat of spray paint will keep rust and corrosion off the fastener head, and prevent moisture from creeping into the threads. Pour the Diet Coke or Evaporust around the bolt and let it soak in. 0L MFI | AutoZone. The Chevy 3. [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. Replacing Exhaust, should I replace manifold studs « on: April 15, 2013, 11:21:05 AM » I am installing a new Pypes system on my '78 and am thrilled to have successfully removed my original exhaust system and factory down pipe without breaking off the manifold studs (I have the three bolt flanges). How to Clean Marine Exhaust Manifolds (The Best Way) - Improve Sailing. wish to use small plastic bags to group manifold bolts together, water pump bolts, etc. We have salt ,lots of it up here,plus I snow plow. Tap the remaining manifold bolt holes so that the bolts will thread back in easily. Salt spreaders suck!. I recommend undoing the backmost bolt first, and leaving one of the middle bolts until the end. When trying to remove a reluctant bolt, choose a quality socket wrench with as much leverage as space permits. The problem is that most engines are 5/16 not 3/8. It would not have to be wired tightly at all, and a bow in the wire to clear the exhaust pipe would be quite acceptable, just twist the 2 strands around each other. ARP offers some extra strong exhaust manifold bolts for LS engines in both alloy and stainless. 25 x 44mm, and made from Inconel. Roof-rack-luggage-carrier-for-car-suv-MANUFACTURE-STEEL-FRONT-BUMPER-PROTECTION-GUARD-FOR-NEW-ERTIGA-LATEST-DESIGN-2017-ACCESSORIES-GUARDS-REAR GUARD-NEW PRODUCT-ROOFRAIL-CARRIER-ROOF-BOX-AJANTA GUARD, AJANTA-CARRIER-FOR-NEW-ERTIGA-roof-luggage-carrier. Choosing the Correct Coating for your Exhaust Manifolds. Like the rest of your vehicle, rust loves to hide in those hard to reach locations. However, there is a large amount of rust on the exhaust manifold which detracts from this. Plus: E-mail, blogging, and other ways to keep in touch while RVing. It isn’t perfect but it is simple. does anyone know of a place where I can order a set of brand new exhaust manifold to head bolts? Fomoco wants $17 per bolt and I don't really feel like putting out over $200 just for bolts, so I'm hoping they aren't the only ones who can get ahold of em. Our heat shield is rusting too. Used exhaust components and joints get stressed, seized, and rusted after use and need a lot of care during removal. 25 petrol and have new gaskets, studs, nuts and bolts for the hot box and manifold. Located on the front and rear bolt positions when installed. There are 2 bolts at each exhaust flange. I'm no master with computers or drawing, but here's a sketch to show you what I mean. Average failure mileage is 64,000 miles. Loosen it and watch the. I have switched to my new 2013 2500Hd last year. Remove the exhaust manifold. Re: exhaust manifolds rust!! Air is the worst thing for your manifolds. Cast iron exhaust has been around for many, many years and has been doing the job wonderfully. Re: Exhaust manifold bolt keeps breaking Changing the pitch of the impellor or eliminating any cavatation that may exist is the key to keeping bolts from snapping off as long as the rubber gromments and the mounting bolts and washers are all in good condition and properly torqued down. The lower intake manifold gasket fails and leaks coolant into the engine oil. Exhaust manifold studs keep or remove Need some advice from members who have "been there done that". must be the manifold season,I took mine off today to fix a blow and replace a broken stud,only problem is that when I removed all the bolts the manifold fell in half,its obviously been briken for a long time as the fracture is covered in carbon,the annoying thing is everything undid fairly easly but the inlet manifold refuses to come of the studs joining it to the exhaust manifold so thats a. Have seen the ross sport ones but didn't want to really spend £150 on less than ten studs and nuts. So here’s how I made the job a bit easier for the rear turbo: I took an old bath towel and did my best job to "blanket" the entire area which lay below the exhaust manifold. I am in the process of replacing the intake/exhaust manifold on my 300Tdi. 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. Loosen the manifold bolts evenly to remove the manifolds, these can be heavy. Wiggle the new ones in and torque all the bolts back down with a dab of high temp silicone and you should be good to go. When you winterize leave them full of antifreeze. The coyote engine I am using for my roadster build came out of a 2016 low mileage F150. The repairs to your exhaust system can vary almost as much as their prices to perform a simple oil change. 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. To note, you'll see the same rust problems develop on even many of the more expensive components, although a few would be quick to defend these select products for some reason. Removing exhaust manifold bolts is often a lengthy, difficult and frustrating task for motor mechanics. How to fix the air intake manifold causing rattle noise while accelating Car Experts, My car has a rattle noise while accelating, mechanic said it is not a big safety problem ,but the repair for this air intake manifold will cost around $600. The manifold isn't such a big deal, but I wouldn't wish removing broken bolts on anyone. For MerCruiser center riser small block V8 engines approx 1986-2002 (if you have a 2002, you may need dry joint exhaust, please call us with your serial number) Includes: 2x MerCruiser manifold part number - 860246Q11 (Head to manifold gaskets and 90 drain elbows. Rusted and Broken exhaust manifold bolt removal? I'm thinking about buying some swivel impact sockets and extensions for electric impact gun. (2) Remove the Idler pulley’s 1 & 2. Quite a job to get the old exhaust out, 11 years and 130k miles at an area where is winter and salt. The nuts securing the bolts rust easily and as they are usually placed in inaccessible areas, it's very hard to remove them. 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. 7L Cummins take the hassle out of re-installing your exhaust manifold. After the anti rust liquid has sat for a while use a 14mm, 15mm or 17mm wrench of socket to remove the bolts by turning them counterclockwise. The 2001 Ford F-250 has 1 problems reported for exhaust manifold bolts rust and break off. CAUTION! Make sure rags are removed from exhaust manifold prior to reinstalling turbine housing! Use the new gasket provided to connect the Install the probe in the manifold. Everything is good now. The serious stuff to use is sold at hardware stores as "wood bleach," however since I'm doing this on the cheap and in my kitchen, I chose to use an oxalic acid based product, Bar Keepers Friend. These studs will not rust out like the stock pieces and will save you the agony of removing snapped studs. * Dyno Proven Gains of 20+ horsepower on an MSP with stock boost. If the section has a mounting to the underbody, fit this next: fit nuts and bolts finger-tight; for rubber loops, pack the exhaust as close as possible to the underside to give good clearance. Remove the bolt for the oil level indicator tube bracket in order to remove the exhaust manifold gasket. Bolts can be used, but check them often and use nickel antisieze. Have you tried threading bolts bolts into your holes on the manifold? They are M6 from memory though I think they are copper alloy bolts from the factory. After years of extreme engine temperatures, removing exhaust manifold studs can be a near impossible task. I removed my exhaust manifold recently to replace a welch plug. On each manifold there are 6 10mm bolts holding them to the head. typical stainless steel bolts are slightly weaker than grade 5 SAE bolts, but as stainless doesn't rust the bolts won't grow weaker. 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. I am in the process of replacing the intake/exhaust manifold on my 300Tdi. 4l's the manifold bolds rust out and or the manifolds warp causing an exhaust leak. I had the dealership replace the manifold gasket the first time at about 40,000 miles before it got to.