Quote:
Originally Posted by JayJay
Folks, this has been a great discussion, thanks a million for all your input.
Jim (Conaway2): when you "measured and adjusted...", what measurement did you use as your basis of adjustment? From Alexiskai's comment, I'm thinking that the "correct" width of the gland ring is the combined depths of the block and manifold recesses, and figure that after installation there will be a bit of a gap at the ends of the gland rings due to the thickness of the gasket. This seems reasonable to me. Does that sound correct?
JayJay
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JayJay - I initially measured the combined depth of the block and manifold cutouts and gasket thickness with my dial caliper, then began grinding and test fitting each ring. I used the flat side of the grinding wheel at pretty low speed. I needed to take less than 1/16th” off each gland ring. I also knew that the machine shop had removed less than 1/16” from the combined new exhaust/original manifolds bolted together.
Everything lined up quite well, so installation of the gland rings was easy - unlike trying to use an original exhaust manifold.
I’ve tried to use several original exhaust manifolds in the past three years and all were warped enough that they would not align with the exhaust ports in the block. The new exhaust manifolds from Brattons - and probably other vendors - are well-made and fit very nicely. They’re not identical to original ones, so probably not for a fine-point car.
Good luck - Jim