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-   -   LQ4/9 no oil pressure ! (https://www.performancetrucks.net/forums/gm-engine-exhaust-performance-21/lq4-9-no-oil-pressure-517122/)

BigDaddy0381 04-25-2013 09:04 PM

LQ4/9 no oil pressure !
 
I just built with a lot of help a .30 6.0. I'm not getting any oil to top end.
right at the oil filter there is a "oil filter bypass pressure valve", Can anyone tell me what this is for? or if it could be why i'm not getting or holding prime? there is nothing in the hole that that valve goes in. the o'ring on the oil pump has been checked and recheck so just trying to single things out before going back into the oil pan. We have also tapped the oil cooler block off and tried to prime I that way with no luck. any thoughts would be great

quicksilverado 04-25-2013 09:10 PM

Did you put the little dumb bell plastic piece in the back of the block?

BigDaddy0381 04-25-2013 09:24 PM

The "dog bone" yes its in there. It was double check by me and the person helping me with the build.

vicalma03 04-28-2013 10:17 AM

Think there is a plug in the front of the block. Did you make sure that was still in?

BigDaddy0381 04-30-2013 09:35 AM

I just bought these, going to give the port on side of the block a boost with 4 or 5 quarts. cross your fingers for me. I hope I can get it to hook up to my garden sprayer to pump this POS full.

EAR-9919DFDERL -6AN TO 10MM X 1.5
SUM-220121 -6 TO -4 ADAPTER
SUM-220700 TWIST-TITE -4 END STRAIGHT

Kemble 04-30-2013 09:44 AM


Originally Posted by BigDaddy0381 (Post 5098013)
I just bought these, going to give the port on side of the block a boost with 4 or 5 quarts. cross your fingers for me. I hope I can get it to hook up to my garden sprayer to pump this POS full.

EAR-9919DFDERL -6AN TO 10MM X 1.5
SUM-220121 -6 TO -4 ADAPTER
SUM-220700 TWIST-TITE -4 END STRAIGHT

No oil pressure withit running or just turning it over?

BigDaddy0381 04-30-2013 10:59 AM

Both, I haven't run it for more than 30 seconds 3 times and turned it over with starter more than 3 times with no plugs or fuel.

01WS6/tamu 04-30-2013 10:42 PM

Are the lifters ticking?

BigDaddy0381 05-01-2013 06:03 AM

no, quiet as a church mouse.. I soaked the lifters and poured oil over top before the start ups and let it sit. i hope it helped.

greasemykey 05-01-2013 06:49 AM

did you check the o ring on the oil pump pick up to make sure is seated properly or did not tear?


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