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Santa Clarita, Ca.
Join Date: Nov 2007
Location: Bakersfield, Ca.
Posts: 222
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I am in ned of an oil flow diagram or at least a verbal explanation of the oil system for a 73 2.4 engine. Please post a link or if you have a PDF mail to; ahdoman@socal.rr.com
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Moderator
Join Date: Dec 2001
Posts: 9,569
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This information is easily found using the search feature. You do not say whether your engine has an external oil cooler, so here are both diagrams.
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'66 911 #304065 Irischgruen ‘96 993 Carrera 2 Polarsilber '81 R65 Ex-'71 911 PCA C-Stock Club Racer #806 (Sold 5/15/13) Ex-'88 Carrera (Sold 3/29/02) Ex-'91 Carrera 2 Cabriolet (Sold 8/20/04) Ex-'89 944 Turbo S (Sold 8/21/20) |
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abit off center
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This shows the flow without the oil by pass mod done?
Can you draw in what the mod does?
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______________________ Craig G2Performance Twinplug, head work, case savers, rockers arms, etc. |
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Moderator
Join Date: Dec 2001
Posts: 9,569
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Actually Craig, the upper diagram clearly illustrates the OBM. Excess pressure from the pump (gray lines) is routed past the pressure valve into the inlet to the pressure side of the pump (green lines). The lower diagram is of course the original 901 and you can see both pressure and overpressure valves dumping to the sump (little pink branches)
oilpump modification
__________________
'66 911 #304065 Irischgruen ‘96 993 Carrera 2 Polarsilber '81 R65 Ex-'71 911 PCA C-Stock Club Racer #806 (Sold 5/15/13) Ex-'88 Carrera (Sold 3/29/02) Ex-'91 Carrera 2 Cabriolet (Sold 8/20/04) Ex-'89 944 Turbo S (Sold 8/21/20) Last edited by 304065; 08-14-2008 at 11:35 AM.. |
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abit off center
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Got it! I should have known you would have it covered
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__________________
______________________ Craig G2Performance Twinplug, head work, case savers, rockers arms, etc. |
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Tags |
oil bypass modification |