| Re: Pesky Header Leak...Seeking Creative Alternatives !!! |
Subject: Re: Pesky Header Leak...Seeking Creative Alternatives !!! by BillH on 2012/4/26 14:14:35 Quote:
Might work, might not. I'd be really supprised if the cyl head is the problem. Flat filing the primaries was a start, sometimes not that easy to do. It isn't easy to hold the file flat while you're using it, have to maintain the pressure on top of the file with your left hand. You have an extra set of heads laying around? I think if you do, you could clamp one to the bench and work on getting the headers flat much easier that way. What I would do is work with them off the car, bolt them up lightly to a head to start, check the mating surfaces with a .0015 feeler gauge and maybe Prussion Blue. IMO, having to overtighten the bolts means something's not flat. And you can't be sure you have the surface flat by just filing (though that's a good start). You could also use a standard gasket (on the bench), lightly tighten up the header, pull it off and look at the pattern on the gasket. I always tighten the center tubes firet then the outer ones. Headers are always a pain. |
