Leaking FI pump

Carbs & F.I.

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tommu
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Leaking FI pump

Post by tommu » Sat Dec 22, 2018 4:31 pm

My pump is leaking at the body. Is there a reason this would happen? Wondering what I could have done to cause this..

https://m.youtube.com/watch?v=15_Ck9zqgf8

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Amskeptic
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Re: Leaking FI pump

Post by Amskeptic » Sun Dec 23, 2018 4:52 pm

Ouch. Did it suffer any sort of impact in its recent travels? It has a devilishly delicate cauliflower crimp at the top, and it has a little rubber o-ring that has to keep back pressure. The only way this pump can pull off a leak-free seal, ( sure, like the Morton Thiocol shuttle boosters ) is to be perfectly perfectly round at the seal line. My rebuild, where I had to re-fashion the cauliflower crimp, was so damn not-round enough, and you could barely tell, 'cept for the spray of gas.
Colin
BobD - 1978 Bus . . . . . . . . . . .111,155 miles
Chloe - 1970 bus . . . . . . . . . . . 206,820 miles
Naranja - 1977 Westfalia . . . . . 00,000/7 miles
Pluck - 1973 Squareback . . . . . 55,510 miles
Alexus - 1991 Lexus LS400 . . . 78,885 miles

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tommu
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Re: Leaking FI pump

Post by tommu » Wed Dec 26, 2018 5:37 pm

Yes, dropped but only from a couple of feet.. I had no idea they could be this fragile.

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Amskeptic
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Re: Leaking FI pump

Post by Amskeptic » Wed Dec 26, 2018 7:45 pm

tommu wrote:
Wed Dec 26, 2018 5:37 pm
Yes, dropped but only from a couple of feet.. I had no idea they could be this fragile.

If I could figure out how to do that crimp without distortion . . . or find an unusually compliant slightly bigger o-ring. Save the pump. Maybe we can experiment.
Colin
BobD - 1978 Bus . . . . . . . . . . .111,155 miles
Chloe - 1970 bus . . . . . . . . . . . 206,820 miles
Naranja - 1977 Westfalia . . . . . 00,000/7 miles
Pluck - 1973 Squareback . . . . . 55,510 miles
Alexus - 1991 Lexus LS400 . . . 78,885 miles

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