View Single Post
  #1 (permalink)  
Old 03-01-2006, 05:45 PM
MaSnaka's Avatar
MaSnaka MaSnaka is offline
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2006
Location: Thousand Oaks, CA
Cobra Make, Engine: Classic Roadster
Posts: 1,367
Not Ranked     
Default oil pressure fe 390

I have not learned trial by fire that I think most of you guys have. My high performance experience is somewhat novice. I purchased a used Cobra with a rebuilt fe 390, had it in the shop getting some clutch work done and the mechanic said my oil pressure was questionable...at cold idle it would read just over 25 lbs and not move significantly up or down with engine temperature or RPM fluctuations. I checked the guage which seemed ok, replaced the oil pressure sending unit, no change there. So I replaced the oil pump with a high volume pump and now have 50 lbs at cold idle and at 190f engine temp it will gradually drop to 30 lbs as the oil heats up. The pressure doesn't change if I'm idling or at freeway speed when the engine is warm. Should I be concerned or is this adequate. I get different opinions depending on who I ask. Your help and advice please. Thanks!

John
Classic Roadster
Silver no stripes
Reply With Quote