Jim, Sounds like the only problem you have is your oil pump end clearance was set to the loose side. You really dont have an issue unless your running the engine hard and up past 5000 RPMs. DO you have a blueprint from your engine build? What were the pump clearances? If it really bothers you you can swap in a thinner oil pump gasket Bultear sells a .007" gasket. Stock gasket is usually .009 to .012 Davis ________________________________ From: "feltonjk@xxxxxxx" <feltonjk@xxxxxxx> To: amc-list@xxxxxxxxxxxxxxxxx Sent: Mon, November 15, 2010 4:10:28 PM Subject: [AMC-list] Oil Pressure II Thanks to everyone for the input. Here is a little more information. When I initially start the car I get 40lb of oil pressure. As the oil get warm the pressure falls. After 10 minutes at idle of 700 rpm the pressure is at 9-10 lbs. I have a mechanical gauge with copper line. If the pressure relief valve was br stuck, wouldn't the pressure remain the same? I have about 80 miles on the rebuild. I removed and cut the oil filter (with the appropriate tool so no shavings would be in the filter from the cutting). I checked the inside of the filter and could see NO metal shavings. Anyway, if it still sounds like it could be the pressure relief, how do I check to see if it is bad? I hope that is the problem because if it is bearing clearance I've got a big problem. Any ideas? Past experience? Any information is appreciated. Thanks, Jim -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://list.amc-list.com/pipermail/amc-list-amc-list.com/attachments/20101115/11f3c826/attachment.htm> _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://list.amc-list.com/pipermail/amc-list-amc-list.com/attachments/20101115/dadb764c/attachment.htm> _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com