When I originally checked out my '64 C10, I brought along my father-in-law. He is a '61 year old ASE certified tech that has actually owned a '65 C10.
When the truck was first started, until it got warmed up, the was this loud, intermittent, whinning/rubbing noise coming from under the hood, mostly pronounced on the drivers side. He told me he thought it was the old alternator... So, I wasn't too concerned. Two days ago, I did a motor flush. Since then, it has gotten louder and more persistant. It ALMOST sounds to me like there is something in the motor that isn't getting any oil. Sounds kind of like something metal, rotating against something else metal, with no lubrication.
Any thoughts or suggestions on what could be the actual cause?
