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Chuck
 Post subject: Oil pump price
PostPosted: Mon Apr 25, 2011 2:47 pm 
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Location: Grass Valley, Ca.
Car Model: '63 Dodge Dart GT Convertible
Anyone tried to buy an oil pump lately? I am seeing prices from $55 to $75 USD. The last time I got one it was about $30. That's 100-150% more!!! Got a better source?

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Valleyant
 Post subject:
PostPosted: Mon Apr 25, 2011 2:52 pm 
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pm sent
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DusterIdiot
 Post subject: Yep...
PostPosted: Mon Apr 25, 2011 5:32 pm 
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And the bad part is they aren't any better...I already lost my last engine to a new melling standard pump...

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Doc
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PostPosted: Tue Apr 26, 2011 8:41 am 
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Never use the drive gear that comes on today's new aftermarket oil pumps... it's just not worth the risk.
Swap a good wear pattern gear off a used factory oil pump or get a case hardened gear.
Loosing an engine to a low quality oil pump drive gear is never any fun.
DD
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lowbudget
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PostPosted: Tue Apr 26, 2011 11:30 am 
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Location: Vernal Utah
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Does anyone still sell the oil pump rebuild kits here? As long as you have to pull the gear off a person might as well rebuild it. I see that Pentastar does but 135.00 AUD plus the ride is pricey. It would be 144.50 US plus freight due to the dollar being so low.

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DusterIdiot
 Post subject: The bad part...
PostPosted: Tue Apr 26, 2011 6:30 pm 
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Quote:
Never use the drive gear that comes on today's new aftermarket oil pumps... it's just not worth the risk.
Swap a good wear pattern gear off a used factory oil pump or get a case hardened gear.
Loosing an engine to a low quality oil pump drive gear is never any fun.
The bad part is the gear was fine...the pump was packed with vaseline and upon removal/autopsy it was full of oil and the passages were clear...the rotor and ring just failed to make any oil pressure...hard to check clearances now since it injested some nice chunks and pitted the living crap out of the guts...

Have a pile of stocker pumps i'll be looking pretty hard at next.

-D.Idiot
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Wizard
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PostPosted: Wed Apr 27, 2011 9:45 am 
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Could that pump gear drive or the shaft pressed into rotor not tight enough and slip at higher PSI especially when pump and oil is heated up enough?

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Doc
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PostPosted: Wed Apr 27, 2011 9:57 am 
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I have seen a number of oil pumps where the gear or impeller spins on the shaft... then the pump makes little to no pressure.
This is hard to diagnose when the impeller 'head' start slipping, when the drive gear end spins, the gear is usually pulled right off the shaft.
This tends to happen when metal pieces get past the pick-up screen and into the pump, jamming the impeller.
When I see this happen, I am often looking thru the engine for where the metal pieces came from and how they got past the screen.
DD
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Chuck
 Post subject:
PostPosted: Wed Apr 27, 2011 6:07 pm 
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Location: Grass Valley, Ca.
Car Model: '63 Dodge Dart GT Convertible
I have seen where the pickup is full of dried-out carbon deposits. They form right in the screen, so you can't see any place where they "got in".

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