Packard Forum Index » Post-War (1946-54)

Lining up manifolds:
I had mine apart recently It's easy. Leave the 3 manifold connecting bolts loose, put the manifolds on the block without a gasket, tighten the stud nuts, then tighten the 3 manifold bolts. Remove the pair, then put the gaskets on.
While you have the manifolds apart, and if you are in a warm climate and have trouble with carb heat, another trick is put some 0.020 shim between the manifolds, and poke a small vent hole through. This reduces the exhaust heat contacting the lower surface of the intake plenum. Of course if you live in the arctic you won't want this. Gary

I like Gone1951's step stud solution. Meanwhile, for those considering Hela-Coil, try Time-Sert instead.

I found this thread very illuminating. I have an exhaust manifold leak on two cylinders. I had no idea these studs actually got into the water jacket!, Oh, what a mess I would have made. No wonder many people have trouble getting the old studs out. Corrosion on the stud threads could make them very hard to get loose for replacement.

To all thanks for this info

Dave O