exhaust manifold gaskets?

Question

will replacing my exhaust manifold gasket quite down my truck if they are already blown? Cause tats were exhaust fumes could be leaking, and that would make it louder right?

Answer 1

Yes. Replacing the manifold gaskets is a cheap, "if not easy" way to try to solve the noise problem, if it's the problem to begin with. A more common problem is the connection after the ex. manifold. If the exhaust manifolds have never been removed, it is very rare for them to leak. You can check them easily, starting with a cold engine, this is going to sound strange, but, get a stick of incense, start the engine, light the incense, move the lit end of the incense around all the exhaust ports " where the manifolds meet the heads", if you have a leak you should see the incense lighting up as the leak 'puffs' on it. good luck

Answer 2

Yes this is correct. but replace the donuts in the manifold to tail pipe also. make sure all old gasket material is cleaned of manifold and head. Start all bolts before tightening. The tail pipe is joined to the manifold with 3 studs coming out of the manifold. the tail pipe has a flang that slips over the studs and held in place with 3 nuts. put penetrating oil on the studs and nuts letting them soak before starting the job. the donut will have a metal sleeve sticking out one end, this goes into the manifold. Tighten these 3 bolts evenly. On manifold tighten center bolts first after bringing all bolts down snug.

Answer 3

A bad exhaust gasket would not stop an engine from firing. When you did the timing, did you make sure that the distributor dropped down and engaged with the oil pump drive? If you didn't, the engine will not start. Loosen all the spark plugs so that the engine can be turned by hand. Put number one piston at top dead center. Make sure that the rotor arm of the distributor is pointing toward number one cylinder. The points should be just on the verge of opening. While your friend keeps a downward pressure on the distributor body, grab the fan belt and engine fan and slowly turn the engine by hand. Keep doing it until you hear the distributor drop. Your friend will feel it the moment it happens. Once it drops, the distributor gear has meshed with the oil pump drive. Once you've done this, lock the distributor down, tighten the plugs and try it again.

Answer 4

definitly. if possible, just loosen the manifold to slip the old gaskets out. then drop in the new one-piece gasket. if you have to remove all the bolts, make sure you clean the old gasket material off real well and that there is no scoring on the manifold or heads. otherwise the gaskets will go bad shortly. if there is scoring, check with an auto supply for either a good sealer or padded gaskets.

Answer 5

That is correct