over the years i have learned some things the hard way. It is like a premixed refractory cement. Flange joints are torque tight with the help of a torque wrench (Manual or hydronic wrench). 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. 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. Original Poster. Tighten the top nut to 100-120 in-lbs (11.3-13.6 Nm). What would happen if you put gas in your car while it’s on? Steering wheel shaking at high speeds and vibration while braking? The main types are ball and socket, U-bolt, flat band, and V-band clamps. Downstream studs can be distinguished by round heads which, unlike a hex bolt head, cannot be held with a wrench. All tight. Do you need new exhaust flanges for your engine? It is the most extensive line of exhaust flanges available from a single company. I've used the upper end of the torque range 46Nm so I'm afraid the bolts would break if I tighten too much. 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. if there is no give, something else will give. Are Lingual Braces The Right Option for You? Cylinder Head Dowel Pins Cylinder head alignment dowel pins assure proper gasket and casting alignment for an accurate seal and trouble-free engine operation. In this way, what is a spring bolt? – mikes May 3 '18 at 1:25 Still have questions? If you are going to have a great running hot rod, you need to have a great exhaust system. the valve cover 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. 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. In order to remove it, you may have to use a knife or another flat piece of metal to pry the exhaust flange off. Apply a liberal amount to both sides of the gasket. Thus the loose pipe, and the popping. Need advice for using a floor jack as I have a right rear flat tire in my driveway.? The exhaust connection should have special 'shouldered' bolts for it. But the front pipe moved 3/8 inch inside the tight flange. Should I replace the gaskets? Where is the hydraulic filter on a cat 300.9 mini excavator ? Replacing an exhaust flange can be a pretty simple process. 4 When the shoulder of the bolt is seated against the flange, then that is the correct spring tension. 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. Car: 2002 Honda Civic I just put in a new exhaust pipe. There are numerous style of exhaust clamps, and the type that your vehicle’s exhaust system uses depends on the car. on my 1964 dodge dart. Do It Yourself has created a simple five step instruction on how to replace an exhaust flange. Best bolts for exhaust/catalytic convertor. 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… i used a 3/8 bolt / should have been 7/16. 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. Therefore, a more practical procedure is to tighten all the stud bolts in stages. To that add the thickness of the exhaust flange and gasket. Loosen the exhaust flange and gasket: Your flange may be stuck. When I got home I immediately checked the exhaust flange bolts for tightness. Join Yahoo Answers and get 100 points today. When I got home I immediately checked the exhaust flange bolts for tightness. 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. All tight. Tighten the bottom nut of the rear cylinder head exhaust flange to 9-18 in-lbs (1-2 Nm). 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? That'll give you an idea of the overall depth you have to work with. How to fix a broken or rusted out exhaust flange on any car or truck. The allen would spread the threads on the screw tightly in the whole effectively locking it in. From that figure subtract 1/8"/1/4" to prevent bottoming. Determine how the flange is connected. This ensures an even torque reading across the entire flange. This means that the joint may not be as strong as it should be. I think the exhaust was leaking because I had a lot of decel poping at times. And they still fit properly. Anytime you have a series of bolts, you should practice what Mike said. Where should I find these values. Good idea. The … Proper bolt tightening will ensure uniform load distribution in all bolts without damaging the gaskets. 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 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. Tighten the flange to squeeze out the excess. In cobra pipes manual could not find any info. I removed my exhaust manifold recently to replace a welch plug. Final … Secondly, how tight should exhaust flange bolts be? All front-pipe-to-manifold flanges are secured by nuts to the studs of the manifold. I tightened up the bolts on the flanges until the springs got squeezed all the way. Re: How tight do you tighten flange bolts? Don't know of a particular torque either. 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? This means the flange has nothing to grab. something is different, start looking. Tuesday 21st May 2013. This is because splitting the bolt into pieces reduces the tension in it thus making it simple to rotate and move. Can even move the bolts, they are so covered in rust, so I'll be cutting them off this weekend and replacing. Rinse and repeat, until the toilet is flat on the floor. How can you tell if something is off with your exhaust? Tighten the bottom nut to 100-120 in-lbs (11.3-13.6 Nm). The good news is that is is fairly easy to get it replaced in most vehicles. 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. 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). Thus the loose pipe, and the popping. 59 Posts . U-Bolt 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. Get your answers by asking now. High Dosage is a premium articles directory. Flanges are designed so that the entire nut-bolt combination holds the forces on the flange. Here are a few steps to replacing your exhaust flange. Final tighten the top nut to 100-120 in-lbs (11.3-13.6 Nm). its not right. The correct placement of gasket and proper tightening of bolts in a flanged joint will ensure a leak-free joint. I've only used the Loctite brand which comes in a can. 2 (2) A 194 8 50 to 100 -20 to 1000 Higher temperatures and stainless steel flanges Therefore, a more practical procedure is to tighten all the stud bolts in stages. 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. exhaustflange.jpg Standard bolt and washer hardware won't work very well. The bolts will be located on the exhaust port. The exhaust connection should have special 'shouldered' bolts for it. This is very difficult to do in practice. Cylinder Head Dowel Pins Cylinder head alignment dowel pins assure proper gasket and casting alignment for an accurate seal and trouble-free engine operation. 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. After removing the pipes completely I found that the chrome end of the pipe was not affixed to the pipe. 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. The correct placement of gasket and proper tightening of bolts in a flanged joint will ensure a leak-free joint. exhaustflange.jpg Standard bolt and washer hardware won't work very well. How do I get to them to tighten the nuts? This is very difficult to do in practice. This is apparently loose, as it's causing my exhaust to rattle. This results in a better seal between the valve cover and the head. A leak in the exhaust manifold can do serious damage to your engine if it is not taken care of. It is very important to find the correct flange for your vehicle. Flange nuts or lock washers and nuts work just fine. It could be the same for the flange too but I know its 17 for the bolts. I tightened up the bolts on the flanges until the springs got squeezed all the way. 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. I had already broken the joint with the center section. jammy_basturd. 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. They usually come as a kit with the springs and nuts. 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. I have just removed a very rusted exhaust flange bolt from the bottom of the "Y" section on a Nissan 350Z. Gasketed bolted joints should be pattern tightened in stages. Also should I loosen bolt #4 and retighten or just retighten it right away. 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. Exhaust Clamps. I just put in a new exhaust pipe. This results in a better seal between the valve cover and the head. In theory, one should tighten all bolts simultaneously. Proper bolt tightening will ensure uniform load distribution in all bolts without damaging the gaskets. 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. 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. Fujitsu fi-7700 Scanner Service/Parts Manual. Put Cuts On The Bolt. To locate the exhaust manifold, trace your exhaust pipe to where the round pipe bolts to a two-bolt connection near the engine. 4 When the shoulder of the bolt is seated against the flange, then that is the correct spring tension. 1998 Honda CRV. I tightened up the bolts on the flanges until the springs got squeezed all the way. But the front pipe moved 3/8 inch inside the tight flange. In theory, one should tighten all bolts simultaneously. Irregular tightening or loading can distort and damage the flange and gasket. The clamp load produced during tightening is higher than 75% of the fastener’s proof load. Discussion. That is where you’ll want to get in touch with Hells Gate Hot Rods. Discussion Starter • #1 • Mar 20, 2015. Do you want to save some money by replacing the exhaust flange yourself?
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