Re: Engine & Gearbox Rebuild

Posted by packardbill On 2024/7/15 9:54:37

You definitely have overhead noise. Lifter and valve stem/rocker arm clearance issues. This could be caused by poor oil pressure, stuck lifters, collapsed lifters, worn cam lobes due to lack of lube. You do not have connecting rod, wristpin, or crank noise. You definitely need to check oil pressure and remove your rocker covers and visibly check your rocker shaft movement and how much oil is dripping off the rocker arms.
As info, main bearing noise is a deep heavy clunking sound with rod bearing noise a lighter clunking sound. Wristpin noise is usually a "clatter" and is generally heard when backing off on the throttle. Wristpin noise generally goes away when accelerating.
Any COMPETENT mechanic should be able to diagnose and repair your issues for you, provided the parts are available. PB

p.s. I would NOT continue driving your car until repairs are made.