Re: Ken's 1937 115C Touring Sedan

Posted by Ken_P On 2015/1/22 21:25:42

Finally tracked down some dry ice, and attempted to install my intake valve guides. After being packed in dry ice for a few hours, I attempted to install the guides. No joy. They wouldn't even start into the hole. So, I took an inside micrometer and measured the hole- 0.625" plus or minus a few thousandths. All but one of my valve guides measured out at 0.650-0.653. I had one that measured about 0.626 after sitting in dry ice. A little anti-seize to prevent galling and it slid right in.

Maybe I have senior valve guides, because it looks like all of the junior Packard engines of that era take the same valve guide, according to the parts book (same number for all junior models, different number for senior). Does anyone have the outside diameter of intake valve guides for the junior vs. the senior engines from around 1937?