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Correct oil pump o-ring??

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Old Apr 15, 2005 | 07:48 PM
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Default Correct oil pump o-ring??

What's the part number that I want to use to get the newest o-ring for my oil pump? I almost messed something up today, motor started ticking REAL loud after a WOT run, my oil pump o-ring must be messed up after the timing chain swap, oil pressure is all over the place, etc. After a little driving it went away like the motor finally got some oil up to the valve train.

So any help would be awesome, thanks!
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Old Apr 15, 2005 | 10:45 PM
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That doesn't sound the best. What was your oil pressure on initial startup? How long ago did you do the swap? I don't know the part number but if you go to a dealer (i know, i know, dealers suck *** but they are good for this kind of thing at least) and tell them what you want you will get what you are looking for. Did you put a new O-ring on wtih the swap?
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Old Apr 16, 2005 | 12:32 AM
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Initial start up is 40spi, after driving around it will drop to around 20psi at a light, then go up with throttle, etc. It NEVER did this before I took it off for the timing chain, so I know something is up. I did this swap last night, so it's been 1 day. I will see what they can tell me on the part, I need it though I didn't put a new o-ring on, just reused the stock one, as I thought it looked good and didn't go on badly, seemed fine, but guess not
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Old Apr 16, 2005 | 12:39 AM
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Yes, new O-ring a must have IMO. (and most others) Before I swapped mine to an LS6 pump with the cam (mine's a 98) I would see 18-20 psi at hot idle.
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Old Apr 16, 2005 | 11:30 AM
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That's what I learned here I will be putting a new one on and getting the LS6 pump in (if I can find it). I used to have 40+ at hot idle and 60+ at WOT before I took it off, pisses me off
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Old Apr 17, 2005 | 10:22 PM
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O ring P/N 12557752
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