Exhaust Gaskets leaking

[catoiler]

Had the ATS manafold on for the last couple of month's and the bolts keep backing out! Somebody got the idea that those stupid allen head bolts work better ha ha anybody else have this happen?what was your cure?anybody make comp. gaskets for the exhaust?









Thanks Mike

 

[Don M]

I am using the ATS manifold and using studs instead of the allen bolts.

Its to difficult to torque the allen head stuff for me.



Stud it.



Don~

 

[catoiler]

Thanks don. Must have had brain fade,diden't even think about studs!how about gaskets?













Mike

 

[Joseph Donnelly]

I've been using the ATS with allen bolts for a couple years. I cut the tip off an allen wrench to get on the two top center bolts easier. An allen socket in 3/8" drive works fine on the others (if you relmove the bolt mounting the water pipes you can swing them out of the way and access several of the bolts easier).



If you get them TIGHT, they stay good. The first time, I torqued them to not over 32 lb and retorqued them several times before they stabilized. The second time, after I had r&r'ed the mfd for other stuff, I ran them in with the air ratchet, and they stayed tight. A couple took just a little tweak a few weeks later, but you get the idea. Of course I put a lot of never seez on them so that makes them slippery too. These bolts are grade 12. 9 which is way over grade 8 and being so short, they don't stretch much at all. The long factory bolts stretch and that helps them stay tright as the parts expand and contract with temperature, and crush the gasket just a bit more, etc.

 

[catoiler]

Joe, I should be up your way sometime in january I'll give you a shout when i know for sure. got a couple of questions for ya.















Mike