This has been discussed before - the archive will show this. Been there done
It scared the hell out of me in the first place.
After this the first real start after almost ten years was very rewarding!
From: John DiFede [mailto:JDIFEDE@cablevision.com]
Sent: Thursday, May 31, 2001 6:30 PM
To: firstname.lastname@example.org; email@example.com
I had a similar experience during my recent engine (new cam) refurbishing.
I too used the Haynes book. I had taken the old oil pump out (like yours,
not original equipment as mine was replaced a short time ago) to examine it
for the casting flange, and to check the rotors against specs. Once I had
it apart, I noticed the mention of the chamfer. My oil pump had no
noticeable chamfer. I assembled it the way I thought it should go based on
the light scoring on the rotors. Whether it was assembled right or wrong
was on my mind right up until I cranked the engine over without the spark
plugs in order to build up the initial oil pressure, it took a while and I
got panicky, thinking the pump was to blame. Finally the oil pressure came
up. My advice, forget it. I'm willing to bet that the later pumps do not
have any chamfer. and it doesn't matter which way the outer rotor is
At any rate, prime the oil pump by cranking the motor over without the spark
plugs installed. Make sure your battery is well charged. Continue to crank
until your oil gauge registers pressure. You may have to crank for 1 to 2
/// firstname.lastname@example.org mailing list
/// (If they are dupes, this trailer may also catch them.)