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

Maybe this will help relax you a bit not sure if I posted this already lol

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My 1949 288 was overheating as well. Like you, I tried all the usual fixes to no avail. So I bit the bullet and did a valve job and readjusted the valves. They were too tight. Opened up the exhaust valves to .013. This let the valves sit for an instant longer,allowing better heat transfer. The valves were a little noiser,but it solved the overheating problem. Tip:dont try to remove the manifolds as a unit.loosen the three bolts that hold them together and remove them one at a time. Good luck

I’ve never removed the manifolds individually as doing so means getting them aligned to the block once again! Do you say that because it’s difficult or is there some other more important reason?

Don,

It might be a weight issue. When I removed the manifolds(still bolted together) on my straight eight Packard I used a chain block to lift them off and on. I didn't have a helper and never would have able to lift thm off/on manually by myself. If I'd unbolted them from each other, removal manually would be easier.

I never removed the manifolds when doing a valve job. I worked under the fender.