Oil pump FAILURE
06-04-2009, 08:41 PM
#5
Staging Lane
Thread Starter
Join Date: May 2007
Location: San Leon TX
Posts: 83
Likes: 0
Received 0 Likes
on
0 Posts
Built 427 based on wet sump LS7 block.. Dedicated road race car, less than 8 hrs on engine but lives only in the top half of the RPM range.. Pick up and o-ring all looked good. This engine was rigged with external oil pressure regulator and allways had a high freq. chatter that I thought was the regulator but guess it was the pump.. Going dry sump.. After going thru the engine for a cleanup that is......
Trending Topics
06-05-2009, 08:18 AM
#8
Staging Lane
Thread Starter
Join Date: May 2007
Location: San Leon TX
Posts: 83
Likes: 0
Received 0 Likes
on
0 Posts
It was a Mellings pump... rigged with the internal regulator blocked, the oil exits the block at the left front gallery plug, goes to ext. regulator-filter-cooler, then back in the block at the rear gallery plug..
