Take the fan belt off & try it. It could be in the fan or pulleys. Check the Harmonic balancer. It might be loose or the rubber has deuterated. If not one of these, remove the flywheel cover & see if something might be broken off. Be shure the trans. to bell housing bolts are tight.

George

Last edited by Wrenchbender Ret.; 11/27/2022 7:20 PM.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing.
1972 Chevy c10 Cheyenne Super
In the Gallery Forum