I put the motor in my car started it and no oil pressure unless reved up. Is there anything u can put in the oil to unclog the oil pump instead of takin off everything and cleaning the oil pump out by hand ?

 

i would just assume its the oring not being seated correctly in which case there is no way around it but to take off the cover and reseat or put a new one on preferably.

 

STOP FUGGING REVING YOUR ENGINE WITH NO OIL PRESSURE!!!!

 

Dude no offense but take the thing apart and fix that O ring (Get a new one and install it properly)

You keep reving that motor and you'll be sorry.

 

what o-ring are we talking about? Today I noticed my psi at idle is at around 31 at wot it goes up to like 45.

 

Oil pick up tube sealant O-ring.

 

Also if you didn't seal the spacers that come with the pump you wont have very good oil pressure as well.

 

It might be your oil pump going south. If you're going to get in that far, replace the oil pump too. It's only $85 at the stealership and about $60 or so at gmpartsdirect

 

How big of a PITA is it to replace the oil pump?

 

less of a pain then changing engines if you don't do it.

 

For shizzle

 

Spacers?

 

Check for the plastic diverter cap on the back of the engine... on ordered crate engines they are usually lacking a small plastic plug in the back of the engine behind the rear main cover... you have to pull it off your old engine and put it on the new one. This diverts oil up to the oil pressure sensor... Car will have oil on the cam and crank/bearings, but never makes it to the sensor without that plug!

 

pull the tranny out if you did not replace the plastic plug at the back of the engine block before installation...

It is much easier than pulling out the motor....

PS - this blows...

 

Well I was thinking, I hadn't driven my car in over a month and since then our yearly heatwave has rolled in (92F-94F). Last "night" I kinda tested my theory. I let the engine idle for like 20 mins and my idle psi was a little above 40psi. I then drove it around for 30 mins and the lowest it dropped was a hair below 40 (idle). I think what I really need is an oil cooler. Any recommendations?