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Old 08-29-2019, 09:14 PM   #1
Witt51
 
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Russell james

Can you clear your PM.

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Old 08-30-2019, 12:03 AM   #2
sixty9fordkiller
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Old 08-30-2019, 10:43 PM   #3
Witt51
 
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Sometimes it's the only option. Can't pm to clean out inbox. He has been helping me with my engine just rebuilt. Having an oil pressure problem. Pressure hits 30 psi at start up and then starts dropping with temp. When I give it a little gas no raise oil pressure at all. It's a melling hp/hv. This happens everytime I start it up. Hits 30 and then starts dropping slowly. I changed the valley cover orings. I have an mechanical gauge that I just need to get the fittings together though to install. I'm guessing it's pressure relief valve unless anyone has any other advice?


If it's not the sending unit I guess my next move is to remove front cover and check everything. Not all sure what to look at that could be an issue.

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Old 08-30-2019, 11:15 PM   #4
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Quote:
Originally Posted by Witt51 View Post
Sometimes it's the only option. Can't pm to clean out inbox. He has been helping me with my engine just rebuilt. Having an oil pressure problem. Pressure hits 30 psi at start up and then starts dropping with temp. When I give it a little gas no raise oil pressure at all. It's a melling hp/hv. This happens everytime I start it up. Hits 30 and then starts dropping slowly. I changed the valley cover orings. I have an mechanical gauge that I just need to get the fittings together though to install. I'm guessing it's pressure relief valve unless anyone has any other advice?


If it's not the sending unit I guess my next move is to remove front cover and check everything. Not all sure what to look at that could be an issue.

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I'm assuming you already verified no issues with the pump O-ring?

Edit: My bad. just noticed your last sentence. Hopefully it is not what I said. It just happens to be one of the most common problems with oil pressure issues on an LS...after the pump has been touched.
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Old 09-01-2019, 09:29 AM   #5
Witt51
 
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I installed the oring with a generous amount of petro lube. Making sure it slid together nicely. I rebuilt this on the stand so it made it alot easier to confirm. I shimmed the pump according to melling. This is like a 2 year project with pulling motor and rebuilding it. So of course I get it installed and I get oil psi issue.

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