Join Date: Nov 1999
Location: Central California, USA
Could be build up of crud in the lifters from lack of proper oil changing.
Another thing is, I've seen rockers wear in the pushrod socket to where they would not pass oil. If you take one off and look at the socket there should be a depression where the tip of the pushrod goes. This allows oil to escape out of the hole in the rocker. If the rocker gets too worn, it won't vent the lifter oil. I doubt with 75,000 miles that is your problem, but you might check it. If you pull one, make it an exhaust, they run hotter and wear more.
The older I get, the faster I was!
[This message has been edited by davidpozzi (edited 05-23-2000).]