Camshaft install

[1987 Porsche]

I just put my cam tower on the left side and torqued everything down to spec. I installed the camshaft in the housing and it does spin with out binding. I also installed the other camshaft in my other housing which is placed on the workbench not installed to see the difference. That one spins a lot easier. Should I be worried?

[deftom]

Hard to say, unfortunately it's a feeling...

Did you try to invert to see the feeling difference?

[dannobee]

What else was done to the engine? Were the heads trued/flycut at the head gasket area? Were the cylinders replaced? Were the deck heights all the same?

[1987 Porsche]

Thanks for the replies. I ended up talking to Tony (BoyT911sc) who calmed my nerves. I think I was a little overly nervous with the smoothness of the spin of the cam. It's hard to determine what's right when this is your first build.

Lou

[911pcars]

Cams are shafts and can have runout (not straight) and if so, can hang up when manually rotated in the cam housing. Good catch. A set of V-blocks and a dial indicator are basic tools to measure shaft runout. If it's off, a camshaft rebuilder or perhaps an automotive machine shop can straighten it fairly easily. One of my reground-to-964-spec-cams was out 0.004", but was motivated back to specs. It required more technique than hi-tech machinery.

Sherwood