Topic: O ring size for OMC fuel connector – Page 2

This topic has 17 replies, 6 voices, and was last updated 8 years, 1 month ago by frankr.

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August 16, 2017 at 4:24 pm #63230
bill-loveland
Participant
quote Garry in Tampa:

Here is the parts book . . . 😀

Gary – part #16 (valve retainer) is captured by deformation of the edge of the hole in the housing it sits in. It appears to be the only way to replace part #17 (O-ring).

Do most people just give that one a pass?

Or am I looking at some dremel work?

And why are the core plugs so damned expensive?

ETA: any hints/tips/tricks on removing and installing part #36?
August 16, 2017 at 7:19 pm #63239
garry-in-michigan
Participant
Lifetime Member
About that connector seal "O" ring, Pick out what you need . . . 😉
August 16, 2017 at 7:23 pm #63240
garry-in-michigan
Participant
Lifetime Member
About that connector seal "O" ring, Pick out what you need . . . 😉
August 16, 2017 at 11:45 pm #63261
bill-loveland
Participant
Thanks Gary – that’s just what I was looking for!
August 20, 2017 at 4:39 am #63493
Mumbles
Participant
quote crosbyman:

what are the specs on this O ring which dealers don’t seem to have .. or want in …stock preferring to sell the whole OMC hose end connectors for $15

It took a while but I found one in my stash marked P/N 334913 and the closest I could measure it was:

O.D. .468 or 15/32
I.D. .218 or 7/32
Thickness .125 or 1/8

Gee, the Sierra 18-7150 equivalents are only $23.88 a piece on Amazon while the OMC originals can be found for a buck or so on Ebay.

https://www.amazon.com/Sierra-18-7150-R … B002MY4LCK
August 20, 2017 at 12:23 pm #63501
crosbyman
Participant
Canada Member
😆 hey ! shipping is free … that O ring must come in a really big box

Joining AOMCI has priviledges 🙂
September 1, 2017 at 10:34 pm #64146
bill-loveland
Participant
Follow up question – does anybody sell the rim protectors that slip over the bottom rim of the tank and protect the bottom of the boat?

A google search turns up nothing, which means I’m probably using a bad search string.
September 1, 2017 at 11:24 pm #64148
frankr
Participant
US MEMBER PAY BY CHECK
That tiny little o-ring around the pin is a very troublesome item. When they leak, the fuel pump sucks air from around the pin. There are two sizes of the o-ring, early ones being smaller than later ones. The early ones are especially prone to leaking. It is removed by removing the core plug, then sliding the pin & spring out. Then stick a punch or something in the retainer #16 and rock it out. Use a hammer and screwdriver to stake it back in.
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