Mark Endicott wrote:
>
> I remember a thread on this subject recently but none of the posts seem
> to fit my situation. Here is the story..
>
> The engine is reported to have 24000 original miles, I can't confirm
> this but it sure is strong. The compression is 180 lbs in all cylinders
> and all looks good. Fresh Castrol 20W50 and filter with no change. The
> engine temperature is a consistent 170 degrees. But the oil pressure at
> startup is 80 lbs., let it run a few miles and the idle pressure drops
> only to 40+ lbs. Any increase in engine speed and the pressure goes to
> 80 and stays there. I have confirmed the readings with a different SW
> pressure gauge so I believe the Smith's.
Mark -
Similar to the results I'm getting in my '79B. About 80 at startup
idle, when hot 75-80 at rpms above 2000, drops to 40-45 at idle. About
6000 miles since rebuild, running Castrol Syntec 10W50. Not to
worry....
--
Keep on keepin' on!
Wayne Kube 1979 MGB
Plano, TX http://web2.airmail.net/wkube
Texas MG Register http://www.tmgr.org
NAMGBR UK Site http://www.mgcars.org.uk/namgbr
|