oil pressure issue.

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01-13-2013, 08:38 PM

whitew01ws6

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oil pressure issue.

what could cause a oil pressure issue in a lq4 lost oil pressure and collapsed a lifter so put a new oil pump on and still is issue is not fixed. O ring is fine tube is fine

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01-13-2013, 10:23 PM

Frans96SS

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Quote:

Originally Posted by whitew01ws6

what could cause a oil pressure issue in a lq4 lost oil pressure and collapsed a lifter so put a new oil pump on and still is issue is not fixed. O ring is fine tube is fine

Plug in back of block.

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01-13-2013, 11:29 PM

whitew01ws6

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What do u mean a plug in the back of the block? If that's a sensor it can't be the issue because iam not getting oil to the top of the engine. I made a post on th issue in the ls1 internals forum

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01-14-2013, 12:00 AM

KnightmareCS

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He means something is plugged up (with gunk, crap, etc) at the back of the block (where the sensor reads the pressure).

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01-14-2013, 12:15 AM

Frans96SS

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No there is a plug in the back of the block. People call it the barbell.

https://encrypted-tbn0.gstatic.com/i...AplMO2qJqd-JFQ

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01-14-2013, 12:34 AM

KnightmareCS

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01-14-2013, 08:00 AM

george g

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Cam bearings could be the problem with no top end oil.After going through the problems with cam bearings in my build,that would be my guess.

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01-14-2013, 08:34 AM

Slowhawk

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Was it running with oil pressure then dropped ? Or did you install it and never had oil pressure?

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01-14-2013, 11:16 AM

whitew01ws6

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Installed and never gained pressure

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01-14-2013, 11:23 AM

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Slowhawk

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Then it could very well be the dumb bell in the back of the motor or the freeze plug in the front next to the pump.

Even smoked bearings will atleast have pressure on cold start.

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01-14-2013, 11:31 AM

#11

whitew01ws6

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Ok how do I get to this barbell. Do I have to drop the trans. How can I access it?

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01-14-2013, 12:12 PM

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dschmittie1

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pull trans and rear cover of engine

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01-14-2013, 05:05 PM

#13

TrickrTreat

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There talking about this.

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01-14-2013, 09:50 PM

#14

whitew01ws6

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Ok now what does it do? Lol

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01-15-2013, 06:50 AM

#15

dschmittie1

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It makes the oil go through the block properly

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01-15-2013, 02:36 PM

#16

bills98ta

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Had a buddy's barbell get a glob of gasket silicone in it and clogged it up...

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01-15-2013, 02:39 PM

#17

bills98ta

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What is the oil pressure at ? What lifters ?

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01-15-2013, 06:44 PM

#18

whitew01ws6

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I have zero oil pressure. And I hink it's the passenger side 3rd one from the firewall

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01-16-2013, 06:07 AM

#19

bills98ta

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Time to pull the motor... I've had collapsed lifters before, but never went to "0" oil pressure. Sure it's not a spun bearing noise, plus the lifters rattling ? Either way, you're pulling the heads to get to the lifters.

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