I pulled the cam, put in another cam, and it glides freely. So i checked the diameters of the new cam. They were all spot on with the other cam. So i tried reinstalling the cam that was tight. I cleaned the journals, put 20w50 oil on it, and it turns freely! I am scratching my head, and have to figure it was the type of assembly lube I used when I originally put the cam in? I used Lucas assembly lube, and it was tight on install, but after sitting for months, it got thicker? I couldn't turn cam with my bare hand, but after going to 20w50 it is snug, but I can turn it with fingertips.

Last edited by gregsdart; 08/29/22 02:32 PM.

8..603 156 mph best, 2905 lbs 549, indy 572-13, alky