 High Performance Oil Pump |
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| 57lincolnman |
 Jan 4 2015, 10:53 AM
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#1
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Member  Group: Members Posts: 174 Joined: 14-September 10 From: Los Angeles Member No.: 12,175 Region Association: Southern California  |
Should I use a high performance oil pump or go with the stock type? I have developed a minor leak with the high performance oil pump currently installed which puddles in the garage. My mechanic says the stock oil pump performs as well for standard street use and has fewer diaphragms to fail and cause leaks. This is a slightly modified 1.8L with 93 mm pistons. Do I have to drop the engine to do the swap out? Thanks for your thoughts on this.
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| Mark Henry |
Jan 4 2015, 11:00 AM
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#2
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
QUOTE(57lincolnman @ Jan 4 2015, 11:53 AM)  Should I use a high performance oil pump or go with the stock type? I have developed a minor leak with the high performance oil pump currently installed which puddles in the garage. My mechanic says the stock oil pump performs as well for standard street use and has fewer diaphragms to fail and cause leaks. This is a slightly modified 1.8L with 93 mm pistons. Do I have to drop the engine to do the swap out? Thanks for your thoughts on this. (IMG:style_emoticons/default/WTF.gif) If your mechanic is telling you an oil pump has diaphragms you need a new mechanic, because he hasn't got a single fuching clue how an oil pump works. This is pretty basic grade 9 autoshop knowledge. |
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| brant |
Jan 4 2015, 11:22 AM
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#3
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914 Wizard Group: Members Posts: 11,641 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains 
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I agree. No diaphragms.
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| Dave_Darling |
Jan 4 2015, 11:30 AM
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#4
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914 Idiot Group: Members Posts: 14,991 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
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He seems to be getting the oil pump confused with the fuel pump.
That said, the stock pump is perfectly fine for most street use, especially with a stock motor. Unless you have external oil cooling or other add-ons, using the stock pump should cause no problems. The function of the stock pump can be improved by matching the inlet and outlet ports of the pump to the passages in the case, as well. And by setting the clearance between the gears and the housing. --DD |
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| PanelBilly |
Jan 4 2015, 11:49 AM
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#5
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914 Guru Group: Members Posts: 5,819 Joined: 23-July 06 From: Kent, Wa Member No.: 6,488 Region Association: Pacific Northwest
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Pull the engine and stick a suby in there
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| Valy |
Jan 4 2015, 12:09 PM
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#6
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Senior Member Group: Members Posts: 1,677 Joined: 6-April 10 From: Sunnyvale, CA Member No.: 11,573 Region Association: Northern California |
A stock oil pump can only leak from the paper gasket. You should be able to take it out on the car but the access is difficult.
Look at my signature for the paper gasket you need. |
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| Mark Henry |
Jan 4 2015, 12:11 PM
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#7
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
QUOTE(PanelBilly @ Jan 4 2015, 12:49 PM) Pull the engine and stick a suby in there (IMG:style_emoticons/default/first.gif) I'm accused of being a "hard core six guy" so you have to pull that oil pump and install a /6. (IMG:style_emoticons/default/laugh.gif) |
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| PotterPorsche |
Jan 4 2015, 04:43 PM
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#8
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Member Group: Members Posts: 295 Joined: 10-November 13 From: Hayward CA Member No.: 16,628 Region Association: None |
What pump do u have . What gasket prep did they use?
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