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+--- Thread: 617 motor leaking exoust manifold (/showthread.php?tid=1793)
617 motor leaking exoust manifold - 300GD - 09-30-2010
Hi ,
I have 617.931 non turbo motor .It has both manifolds shering bolts .My exoust minifold has bad leak on first from firewall chanel. How hard it is to change this gasket ? Looks streigh forward job with good acess.Anything i should be aware of beside risk of brakig studs.
Thank you for any feedback J
RE: 617 motor leaking exoust manifold - ForcedInduction - 09-30-2010
Breaking studs is the worst of it. The intake comes off at the same time as it shares the gasket.
RE: 617 motor leaking exoust manifold - 300GD - 09-30-2010
So best i can do before job use some penetrating oil on those nuts and wish for best. There goes gasket only ,no silicone or anything else right?
thanks for help
RE: 617 motor leaking exoust manifold - Captain America - 09-30-2010
Careful with the nuts too, they are soft, made of copper or something I believe.
RE: 617 motor leaking exoust manifold - JB3 - 09-30-2010
If the nuts are rusted to the studs, most likely the whole stud will pull out of the head. Fortunately, its a cast iron head, so its unlikely you will damage the threads unless you really really try and cross thread the studs back in. At that point its basically a bolt, instead of a stud and nut, and will act like a bolt putting it back in unless you are very unlucky.
When I took my 240 manifold off, almost all of the nuts were completely rusted to the studs, and the whole stud came out instead of the nuts coming off. Only made it slightly more difficult to reinstall after the fact. On several of them, I had to use an easy out to remove the stud/nut, and then a torch to heat up the nut and get it off the stud later on for replacement.
RE: 617 motor leaking exoust manifold - ForcedInduction - 09-30-2010
(09-30-2010, 08:02 AM)300GD There goes gasket only ,no silicone or anything else right?
The gasket goes on clean.