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|All Messages in Thread||Author||Date|
|P30 7.4 chevrolet||jeff gawley england||10-19-12|
|Hi i am going to fit new exaust gasgets too my RV p30 chassis first what is the correct spanner size. ?? also should i fit the new gaskets dry or with some compound sealer ??the engine is 7.4 i have the new factory gasgets. should the engine be warm or cold. jeff gawley|
|Re: p30 7.4 chevrolet||BUBBA THE BUS TECH||10-19-12|
|Usually 9/16 or 15 mm depending on pre or post metric.|
There is no way in heck you are going to do this on a warm engine. Its going to take several hours.
The exsauhst manifolds will be warped, every single time. You might get lucky and get them to seal, but I doubt it. take them off and machine them. HINT: I use a large wood working bed type belt sander to true them up well enough to seal, works great costs 1 X $8 belt per manifold and about 1/2 hour per.
Fianaly gaskets go on dry unlessyou are using spiffy aftermarket gaskets, then follow the included directions.
|Re: p30 7.4 chevrolet||jeff gawley||10-24-12|
|Hi bubba. thanks for the info.i have renewed the manifold gaskets. all went well. sounds real good now.|
|Re: p30 7.4 chevrolet||jeff gawley||11-4-12|
|Hi bubba. i told you i replaced my manifold gasket. runs and sounds much better BUT after its been running for some time the temperature rises very high. so i stopped the engine. ?? i removed the radiator cap and water came out very fast. ??? can you tell me what is wrong. do i need new head gaskets also ??? jeff|