Gas Cap

trich11trich11 Member Posts: 108 ✭✭✭
in Rinker Express Cruisers Forum
Does anyone have a source for the o ring for a gas cap on a 2004/312 or 2002/342??
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Comments

  • mvnmvn Member, Moderator Posts: 754 mod

    Have a look on this website.  Find the one that looks like yours and it should show the replacement o-ring.

    http://www.iboats.com/Replacement-Vent-Cap-O-Ring-Retainer-Perko/dm/cart_id.303337974--session_id.122222833--view_id.482275

    No marinas in the area have any?

    Mark

    Good,  fast,  cheap.... pick two. 
    2019 MTX20 Extreme
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  • trich11trich11 Member Posts: 108 ✭✭✭
    They are all saying they have to order the cap to get the o ring. This search is for one of my buddies so that is the info he is relaying.
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  • mvnmvn Member, Moderator Posts: 754 mod

    Nonsense.  The seals are most likely Buna N (nitrile) and are very common (see attached).  There might be an industrial seal place near you that can easily provide a replacement.  Or you could try an industrial supply place that deals with hydraulic stuff.

    Mark

    Good,  fast,  cheap.... pick two. 
    2019 MTX20 Extreme
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  • Black_DiamondBlack_Diamond Member Posts: 5,439 ✭✭✭✭✭
    Find a Motion Industries or ATI branch, if you have some calipers to measure the ID and the o-ring dia you can get one cheap.  Most are Nitrile or Buna-N, if you can get Viton it is a better seal material.

    Past owner of a 2003 342FV
    PC BYC, Holland, MI
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  • Lifes GoodLifes Good Member Posts: 465 ✭✭✭
    I found them at my local ace hardware.  I replace them annually so I buy several at a time.
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  • BabyboomerBabyboomer Member Posts: 918 mod
    I went to a NAPA Store they matched it up

    Slip 866 Sunset Marina Byrdstown Tn
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  • jean-mariejean-marie Member Posts: 8 ✭✭
    Hello,
    I had the same problem.  The rubber rings don't last long.  I found replacements at Home Hardware.  They don't last long though.  Change every year.  Disintegrated seals were the reason water was getting into my port tank.
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  • Black_DiamondBlack_Diamond Member Posts: 5,439 ✭✭✭✭✭
    Nitrile o-rings degrade from UV and gasoline over time. Add in the friction from removing/installing the gas cap and they wear out. Use some silicone plumbers grease on it to help. Or upgrade to Viton if you can find them.

    Past owner of a 2003 342FV
    PC BYC, Holland, MI
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  • gslprogslpro Member Posts: 222 ✭✭✭
    edited March 2014
    Well, I have the perko part number for the o-ring only.  It is 054000099B.  Available through multiple websites.  For purchasing your own material o-ring, the size is 1-3/4 x 1-1/2 x 1/8 and the 'dash number' is -224.  Butyl-N is a buck or two, Viton is $2-4 from what I can find.  I just bought a bag of 10 from a guy in Vegas on eBay for $8.70 shipped to my house.  Figure I will keep a few spares in the toolbox for anyone else at the marina.  For that price, I figure go right for the Viton.  It was a PIA to find the size of the dang o-ring online.  No place that sold the Perko replacement listed the sizing, including the Perko folks.  Thanks to forums such as this, I tracked down a group that had a discussion going, and someone had measured and photographed the fill, so they figured it out from there.  I love this forum (and other forums) for the ability to help and be helped by so many people.  
    Gary and Diane
    290 FV Nauti Bonnie
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  • Black_DiamondBlack_Diamond Member Posts: 5,439 ✭✭✭✭✭
    Viton is the way to go, about 2-3x the cost of nitrile is about right.

    Past owner of a 2003 342FV
    PC BYC, Holland, MI
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