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Old 11-29-2011, 04:47 PM
drew1987gn drew1987gn is offline
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Default low oil pressure on rebuild

Hi Jack. I'll try to keep this short. Had my motor rebuilt 7 years ago from a local guy that is highly recommended. Just started it this past weekend. Life's been busy, however, I primed the motor, started right up and ran it for 20 min. for cam break-in. My oil pressure after the motor warmed up was at 20psi at 2,000 rpm. I still need to set my IAC but I'm concerned that the oil pressure is too low. I don't have a high volume oil pump. Does this seem low for oil pressure or is this normal for the buicks? THANKS

Andy C
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Old 12-07-2011, 07:58 PM
Night Train Night Train is offline
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From the factory, pressure was 10 psi at idle of about 1000 RPM and should increase by 10 PSI per 1000 RPM.
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Old 12-11-2011, 11:49 AM
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JCotton1 JCotton1 is offline
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Quote:
Originally Posted by drew1987gn View Post
Hi Jack. I'll try to keep this short. Had my motor rebuilt 7 years ago from a local guy that is highly recommended. Just started it this past weekend. Life's been busy, however, I primed the motor, started right up and ran it for 20 min. for cam break-in. My oil pressure after the motor warmed up was at 20psi at 2,000 rpm. I still need to set my IAC but I'm concerned that the oil pressure is too low. I don't have a high volume oil pump. Does this seem low for oil pressure or is this normal for the buicks? THANKS

Andy C
Hmmm, it's on the edge, like Bob said those are the factory specs. The key is how does it respond to rpm's and does it rise up the ladder like Bob pointed out
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