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Author Topic: Cb 550k petcock O ring failure on the brass nipple  (Read 462 times)

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Offline Cforrestmerch

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Cb 550k petcock O ring failure on the brass nipple
« on: October 01, 2021, 01:32:39 PM »
The title says the issue. I was trying to remove a fuel line from my petcock and it pulled the brass nipple out with it. The ring on the inside was destroyed however I can seem to find the size of the o ring or how to get it back in anywhere. Is it worth trying to rebuild?
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Offline TwoTired

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Re: Cb 550k petcock O ring failure on the brass nipple
« Reply #1 on: October 01, 2021, 04:51:27 PM »
Those nipples are interference fit and are pressed in.  Press it back in.  Or tap it back in.

If anything, use some gasket sealer ( I like Gascacinch), to help it stay and not leak.  I don't think it is necessary though.

Cheers,
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Lloyd... (SOHC4 #11 Original Mail List)
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Offline Don R

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Re: Cb 550k petcock O ring failure on the brass nipple
« Reply #2 on: October 01, 2021, 04:58:09 PM »
 I recently had the same thing happen, I used JB weld on it and tapped it back in. So far so good. If they are old fuel lines just cut them off.  Mine were nearly new. I added a little silicone grease, for better or worse it's back on there.
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Offline Cforrestmerch

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Re: Cb 550k petcock O ring failure on the brass nipple
« Reply #3 on: October 01, 2021, 09:20:10 PM »
Thanks for the advice I have some jb weld so I will slap some on and tap it back in.
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