Loosen the exhaust flange and gasket: Your flange may be stuck. The following procedure describes how to tighten flange bolts. All tight. Best bolts for exhaust/catalytic convertor. Car: 2002 Honda Civic. Each have their place in the exhaust system and you may find 2 or more styles of clamp on your factory system. Using a long 1/2 inch swivel socket, tighten the top nut of the front cylinder head exhaust flange to 9-18 in-lbs (1-2 Nm). Determine how the flange is connected. To achieve the benefits of the pre-loading, the clamping force in the screw must be higher than the joint separation load. i used a 3/8 bolt / should have been 7/16. If you do find a leak you can try tightening the flange bolts a little more. Do It Yourself has created a simple five step instruction on how to replace an exhaust flange. It is very important to find the correct flange for your vehicle. I tightened up the bolts on the flanges until the springs got squeezed all the way. This is very difficult to do in practice. Author: PlumberManDan (IA) Get them down tight and then tighten the R side 4 turns and then go to the L side tighten 4 turns, keep switching sides until you can not rock the toilet then tighten 1 turn, if you notice that the toilet is not sitting on the floor ALL the way around the base then you need to re-evaluate the situation. The main types are ball and socket, U-bolt, flat band, and V-band clamps. DO NOT tighten it as tight as it will go, like you're building something or working on your car - you'll break the flange… Near the back of the exhaust system where the exhaust pipe meets the muffler, there is a exhaust flange with two bolts and two springs attaching the pipe to the muffler, with a gasket in between. After removing the pipes completely I found that the chrome end of the pipe was not affixed to the pipe. By "get longer bolts" I was referring to joining the flanges of the pipe and the Cat, not the clamp as it will sit on top of the old flange. This means that the joint may not be as strong as it should be. 2 (2) A 194 8 50 to 100 -20 to 1000 Higher temperatures and stainless steel flanges That'll give you an idea of the overall depth you have to work with. 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. Irregular tightening or loading can distort and damage the flange and gasket. Proper bolt tightening will ensure uniform load distribution in all bolts without damaging the gaskets. I didn't use too much torque to do this, but it doesn't seem right and I'm afraid my exhaust pipe will crack. the valve cover flange. To locate the exhaust manifold, trace your exhaust pipe to where the round pipe bolts to a two-bolt connection near the engine. I didn't use too much torque to do this, but it doesn't seem right and I'm afraid my exhaust pipe will crack. Why did cars stop being made with tailfins? To do this I cut the nut/bolts with an angle grinder, which left two useless stubs of a rusted bolts in the "Y" section. Downstream flange connections may use studs on one side and nuts on the other or simple nuts and bolts. I just put in a new exhaust pipe. Irregular tightening or loading can distort and damage the flange and gasket. Put Cuts On The Bolt. U-Bolt An exhaust flange is a piece of metal that bolts directly to the engine of your vehicle and allows for custom headers to be fabricated. The bolts will be located on the exhaust port. Putting cuts on the nut and bolts is a sure-shot method to remove immovable bolts. Therefore, a more practical procedure is to tighten all the stud bolts in stages. How to fix a broken or rusted out exhaust flange on any car or truck. The exhaust flex piece that connects the cat to exhaust manifold does not line up with the 3-bolt flange on the exhaust manifold end. And they still fit properly. From that figure subtract 1/8"/1/4" to prevent bottoming. I tightened up the bolts on the flanges until the springs got squeezed all the way. This results in a better seal between the valve cover and the head. Re: How tight do you tighten flange bolts? on my 1964 dodge dart. Car: 2002 Honda Civic I just put in a new exhaust pipe. exhaust … Cylinder Head Dowel Pins Cylinder head alignment dowel pins assure proper gasket and casting alignment for an accurate seal and trouble-free engine operation. They usually come as a kit with the springs and nuts. Tighten the bottom nut to 100-120 in-lbs (11.3-13.6 Nm). Exhaust Clamps. I have just removed a very rusted exhaust flange bolt from the bottom of the "Y" section on a Nissan 350Z. Tighten the flange to squeeze out the excess. I had already broken the joint with the center section. Still have questions? It is like a premixed refractory cement. Hi how tight should i be tightening the exhaust flange to water cooled engine mating surface,its the one where the silicone oring is between and i don,t want to... how tight to tighten the exhaust flange bolts - Modelgasboats.com Good idea. This results in a better seal between the valve cover and the head. Where is the hydraulic filter on a cat 300.9 mini excavator ? The exhaust connection should have special 'shouldered' bolts for it. You are using the wrong bolts the ones you need have a shoulder on them that will stop at a predetermined spot giving the correct tension on the spring. At Hells Gate Hot Rods, all of the flanges are built for each specific application as listed in the product description and they are made to be as universal as possible. All tight. The picture show a improperly bolted flange, because two bolts are too short, and the nuts are not completely on the bolts. I worked general aviation for many years. I think the exhaust was leaking because I had a lot of decel poping at times. It can even lead to a burned exhaust valve, which can cause exhaust from the combustion chamber to flow the wrong way into the intake manifold. 174 months. However, vibration tests show that many bolt retention solutions are less than successful in preventing loose bolts, and mainly act to keep the nut from falling off. That is where you’ll want to get in touch with Hells Gate Hot Rods. exhaustflange.jpg Standard bolt and washer hardware won't work very well. Flange nuts or lock washers and nuts work just fine. Watch for these symptoms: If you notice one or more of these symptoms and think that there is an issue with your exhaust, don’t wait to have it checked and/or replaced. This ensures an even torque reading across the entire flange. Yes, if everything is solid this should work quite well from my … This is very difficult to do in practice. This is because splitting the bolt into pieces reduces the tension in it thus making it simple to rotate and move. Final … The good news is that is is fairly easy to get it replaced in most vehicles. Cylinder Head Dowel Pins Cylinder head alignment dowel pins assure proper gasket and casting alignment for an accurate seal and trouble-free engine operation. over the years i have learned some things the hard way. How do I get to them to tighten the nuts? This means the flange has nothing to grab. In cobra pipes manual could not find any info. Start in the middle and work your way out in a star pattern. It could be the same for the flange too but I know its 17 for the bolts. Exhaust system..bolt..the flange on the exhaust flex pipe but it I''m replacing the exhaust system on my daughters 1999 SL2. Therefore, a more practical procedure is to tighten all the stud bolts in stages. One can apply suitable force with soft hands for removing rusted exhaust flange bolts in no time. 4. its not right. 1. be sure exhaust bolts are the right size. jammy_basturd. Remove the bolts: You should remove all the bolts, except for the two bolts that are on both sides of the header. The … Because each solution can add to the cost of a bolted joint with additional equipment and man-hours for installation and maintenance, they should be critically evaluated before use. reff. Don't see them in overhaul manual, or TCDSLYCOMING for the engine, Mark. Also should I loosen bolt #4 and retighten or just retighten it right away. Where should I find these values. I've only used the Loctite brand which comes in a can. The clamp load produced during tightening is higher than 75% of the fastener’s proof load. Anytime you have a series of bolts, you should practice what Mike said. Here are a few steps to replacing your exhaust flange. Bolt Grade Designation Nut Grade Designation Bolt Yield Strength (1) (Ksi) Temperature Range (deg F) Applications A 193 B7 A 194 2H 75 to 105 RT to 700 General use A 193 B16 A 194 7 85 to 105 -20 to 950 Higher temperatures A 193 B8 cl. Get your answers by asking now. In theory, one should tighten all bolts simultaneously. Secondly, how tight should exhaust flange bolts be? I've used the upper end of the torque range 46Nm so I'm afraid the bolts would break if I tighten too much. When I got home I immediately checked the exhaust flange bolts for tightness. The job of the toilet bolt is to help create a watertight seal between the toilet bowl and the toilet flange and to secure the toilet to the floor. Gasketed bolted joints should be pattern tightened in stages. the valve cover flange. I didn't use too much torque to do this, but it doesn't seem right and I'm afraid my exhaust pipe will crack. A leak in the exhaust manifold can do serious damage to your engine if it is not taken care of. 59 Posts . Thus the loose pipe, and the popping. Replacing an exhaust flange can be a pretty simple process. exhaustflange.jpg Standard bolt and washer hardware won't work very well. The bolts at the head are 23 ft-lbs if I remember correctly. When I got home I immediately checked the exhaust flange bolts for tightness. Downstream studs can be distinguished by round heads which, unlike a hex bolt head, cannot be held with a wrench. Proper bolt tightening will ensure uniform load distribution in all bolts without damaging the gaskets. I use anti-seize on every other bolt though for exhaust including the nuts for the manifold studs, turbo bolts, down pipe ... studs are not torqued on super tight. Don't know of a particular torque either. Do you need new exhaust flanges for your engine? If you’re looking to post some excellent information about and are looking for backlinks, we welcome your submission. Gasketed bolted joints should be pattern tightened in stages. Tighten the bottom nut of the rear cylinder head exhaust flange to 9-18 in-lbs (1-2 Nm). But the front pipe moved 3/8 inch inside the tight flange. I just put in a new exhaust pipe. Steering wheel shaking at high speeds and vibration while braking? If you are going to have a great running hot rod, you need to have a great exhaust system. They usually come as a kit with the springs and nuts. It is the most extensive line of exhaust flanges available from a single company. The correct placement of gasket and proper tightening of bolts in a flanged joint will ensure a leak-free joint. 17lbs is for the header bolts. slant 6. where the pipe bolts to the cast iron header i used an undersized bolt that would come loose in 2 days. Discussion. This is apparently loose, as it's causing my exhaust to rattle. There are three possible measurement distances you can get from the wall to the toilet bolt : 10 inches, 12 inches or 14 inches. Do you want to save some money by replacing the exhaust flange yourself? How bad does wind have to be to knock out power? The exhaust manifold is a large metal block bolted to the side of the engine, and it connects the exhaust pipe to the main engine block. An exhaust flange is generally built to match the port shape and size for each application along with the bolt hole spacing and the pattern to allow for a good fit and seal against the engine. If you tighten it too much, you can pull the closet bolt out through the flange, ruining the flange or breaking the porcelain. Apply a liberal amount to both sides of the gasket. But the front pipe moved 3/8 inch inside the tight flange. In this way, what is a spring bolt? Are Lingual Braces The Right Option for You? Final tighten the top nut to 100-120 in-lbs (11.3-13.6 Nm). I tightened up the bolts on the flanges until the springs got squeezed all the way. Join Yahoo Answers and get 100 points today. High Dosage is a premium articles directory. The following procedure describes how to tighten flange bolts. Can even move the bolts, they are so covered in rust, so I'll be cutting them off this weekend and replacing. Discussion Starter • #1 • Mar 20, 2015. I have had the best luck letting it dry overnight so the exhaust pressure doesn't blow it out. Rinse and repeat, until the toilet is flat on the floor. Parents take issue with political talk on trans rights, Tim Allen on doing time in 3 federal prisons, Study's striking find on fruits, veggies and lifespan, College fraternity shut down after freshman's death, J.J. Watt puts an end to the drama, reveals new team, Report: Former NBA All-Star 'effectively retiring', Higher wages give Costco 'a significant advantage', Lovato slams 'unrealistic beauty expectations', Swift calls out Netflix for 'deeply sexist' joke about her, Hundreds claim decades of abuse by youth center staff, 9/11 families push Biden for more Saudi disclosures. Whether you need a new exhaust flange or some other parts for your exhaust, check out Hells Gate Hot Rods for all your exhaust needs. This is a great solution for you to build a set of custom headers to fit the required space in the engine bay to avoid items such as steering, frame rails, engine mounts, etc. something is different, start looking. To that add the thickness of the exhaust flange and gasket. High Dosage - SEO Article, Private Blog Article Site. It doesn't matter on the exhaust manifold, but on aluminum and other soft things (think intake manifold), it will cause the flange to warp. 26,283 posts. Fujitsu fi-7700 Scanner Service/Parts Manual. Thus the loose pipe, and the popping. – mikes May 3 '18 at 1:25 In order to remove it, you may have to use a knife or another flat piece of metal to pry the exhaust flange off. What would happen if you put gas in your car while it’s on? Need advice for using a floor jack as I have a right rear flat tire in my driveway.? After removing the pipes completely I found that the chrome end of the pipe was not affixed to the pipe. if there is no give, something else will give. This means the flange has nothing to grab. The exhaust connection should have special 'shouldered' bolts for it. the springs are there to allow the engine to rock. All front-pipe-to-manifold flanges are secured by nuts to the studs of the manifold. Should I replace the gaskets? They still require an exhaust gasket between the header flange and the engine/head. Flanges are designed so that the entire nut-bolt combination holds the forces on the flange. 4 When the shoulder of the bolt is seated against the flange, then that is the correct spring tension. So if I understand this correctly, I cut off the existing flange, and then bolt on this new contraption over the remaining outlet pipe on the cat and then bolt the pipe to the new contraption? Reply Reply Author. 4 When the shoulder of the bolt is seated against the flange, then that is the correct spring tension. Flange joints are torque tight with the help of a torque wrench (Manual or hydronic wrench). While checking exhaust system found the exhaust flange nuts loose. I am having a hard time finding the correct torque values for my o320 exhaust nuts, and intake flange bolts. If I just added non-ethanol gas to my car when I usually get regular gas, will it be a problem if I started using regular again? I just put new pipes and I am not sure how much I should tight the exhaust bolts near cilinders. Original Poster. The allen would spread the threads on the screw tightly in the whole effectively locking it in. Once you have purchased your plan, you can follow this simple process to replace your old or warped exhaust flange: By following these simple steps, you can replace most flanges – an essential part of your engine. The exhaust is still mated at the flange - the darn things are so rusty that I couldn't even get them separated after snapping the bolts despite trying to drive a small prybar and large flathead screwdriver to separate them with a hammer (next steps are using a proper chisel and/or my multitool to try to get enough of a gap in there to get a larger prybar in). 1998 Honda CRV. There are numerous style of exhaust clamps, and the type that your vehicle’s exhaust system uses depends on the car. Tighten the top nut to 100-120 in-lbs (11.3-13.6 Nm). I removed my exhaust manifold recently to replace a welch plug. You will be able to find the correct size of exhaust flange while getting one that is CAD designed out of excellent material. In theory, one should tighten all bolts simultaneously. james1300, Oct 27 ... You would screw the bolt in and then tighten down the allen. Tuesday 21st May 2013. How can you tell if something is off with your exhaust? Then, tighten all three nuts to 40-ft.-lbs., and finish by tightening each to The correct placement of gasket and proper tightening of bolts in a flanged joint will ensure a leak-free joint.

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