Join Date: Mar 2002
Location: Palmdale, CA, USA
Thanks for the advice, Everett.
Here is some more information. I think you may be right. It has to do with the valve train somewhere... My oil pressure is close to 60 at 2500 RPM. When I remove the valve cover to adjust the lifters, I notice a ton of oil squirting out of the #7 pushrods(the rearmost piston), but #1 was barely shooting any. The closer you get to the front of the engine, the less the squirting.
That was my first observation. My second observation is this:
I removed the pushrods on the entire driver's (1,3,5,7) side of the engine, and then started the car. With only four cyllinders running (2,4,6,8), the noise decreased signifficantly. Should I replace springs, rods, lifters, and pushrods? Wouldn't the machine shop that rebuilt the engine have given me new ones, or is this not a common practice? Thanks!