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Registered
Join Date: Apr 2007
Location: Bellingham, WA
Posts: 249
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rebuild MFI fuel pump O-rings
Having read as many of the posts here on rebuilding my fuel pump, I decided to tackle it. It is a 72 MFI pump 0-580-970-001
I went to my local bearing place which had a great selection of O-rings. The larger O-ring is 2" x 2-3/16 x 3/32. You need 2 of the smaller 1-3/16 x 1-3/8 x 3/32. All of the O-rings are round. I did not find the O-ring at the electrical connection. The pump did not leak but it did overheat. I will take it apart again to discover what is wrong. Tom
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68 Beetle 68 to 72 sold 72 911T Nov 71 to present P/U @ factory Nov 19. Car was gift to myself for surviving the army 67 VW split window 74 to 76 sold 81 VW caddy 81 to present |
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03-25-2013, 11:13 AM
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Join Date: May 2005
Location: Netherlands
Posts: 262
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Interesting Tom, i'm trying to rebuild mine as well at the moment. I'll be interested to learn what caused the overheating?
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_____________________________ 1972 911 2.4S Black on Black, Recaro's, SSI, MFI, dual pipe exhaust, currently running in after engine rebuild! |
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04-04-2013, 01:23 PM
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The fuel pump is cooled by the fuel fowing through it. I would think it must have run low on fuel and I would check the gas tank and lines and filter screens.
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Ed 1973.5 T |
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04-05-2013, 03:25 AM
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Join Date: Apr 2007
Location: Bellingham, WA
Posts: 249
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Not sure what caused the overheating. gave up & sent it to Pacific Fuel Injection for rebuild 925.371.6551 They did a beautiful job
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68 Beetle 68 to 72 sold 72 911T Nov 71 to present P/U @ factory Nov 19. Car was gift to myself for surviving the army 67 VW split window 74 to 76 sold 81 VW caddy 81 to present |
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04-09-2013, 09:59 AM
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The Other Woman
