Many exhaust systems are pieced well-adjusted by clamp or flange connections.
All vehicles accept at least one drainpipe with a flange connexion. The front tube or header tube bolted to the manifold uses a flange of some type. Many new vehicles these days connect other components, such as catalytic converters, downstream exhaust pipes and all the more mufflers, with flange connections. Apply a level amount of high-temp Perma-Tex (O2 sensor-safe) compound on both sides of the gasket. Place the gasket between the flanges. On most flange connections, there's a small piece of pipe protruding on the inside of the flange to place the gasket on, depending on the type of application.
Examine the tube with the leaking flange gasket carefully before attempting to disconnect it. Front-pipe-to-manifold flanges oftentimes crave the rear flange to the converter or conduit be separated in adjustment to access the leaking gasket. Sometimes unhooking an exhaust hanger somewhere down the exhaust stream might grant Sufficiently flexibility to forgo the rear flange disconnection.
2. Bias how the flange is connected. All front-pipe-to-manifold flanges are secured by nuts to the studs of the manifold. Downstream flange connections may employment studs on one side and nuts on the other or intelligible nuts and bolts. Downstream studs can be distinguished by round heads which, unlike a hex bolt tendency, cannot be held with a wrench. Studs retain grooved notches in their shafts and accomplish not wish a box-end wrench for removing the seed. Seed and bolt connections Testament depend upon the bolt of the belief be held stationary (with the wrench) while a ratchet and socket loosen the stone (or another wrench).
3. Disconnect the flange hardware. Whether cold, heat the nuts of the connexion with an oxyacetylene torch. Using a portable propane torch may not heat the devotee up Sufficiently or could receive a appreciable extent of allotment. Heat dispassionate the edges of the fan and not the bolt. This Testament expand the devotee. Once the devotee is cherry cerise, turn off the torch and remove the peanut. For front pipes, a ratchet, high period and socket are most potential required.
4. Repeat for Everyone seed and stud/bolt connection of the flange until all retaining hardware is removed. The studs will remain intact on their respective exhaust components.
5. Separate the flange connection. This is where the exhaust pipe hanger tool may come in handy. Releasing one or more exhaust hangers near the flange connection may give the exhaust system enough flexibility to access the mating surfaces of each mating flange. As mentioned earlier, it may also require separating the other connection of the exhaust component with the compromised flange gasket.
6. Clean each flange connection's mating surface with emery cloth or medium-grit sandpaper, after allowing the exhaust system to cool down, if a torch was used.
7. With the automobile on a lift and a mechanic that knows what he is doing, the repair could receive a mere uncommon minutes. With a at rest repair mechanic laying on his back with local tools, the repair could mature complicated.
Instructions
1. Some front pipe gaskets are called "donut" gaskets and fit into a ball-flared exhaust pipe.8. Reconnect the flange connection, after replacing the system on hangers, if applicable, with new hardware (nuts, bolts, washers and lock washers).
9. Start the vehicle and check the flange connection for leaks. If necessary, re-tighten the hardware.
