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Thread: 400ex oil filter cover gasket leaking?

  1. #1
    Join Date
    Feb 2005
    Location
    Twinsburg, OH
    Posts
    1,598

    400ex oil filter cover gasket leaking?

    hey guys. We got my brothers bike back together and we started it up. We noticed there was oil dripping from the oil filter cover. It has to be the o ring for the filter cover, but its just weird because i have never seen one of these leak. Is this common? I've worked on tons of 400's and never seen one leak.
    - 05 450r-
    October 2012 QOTM

    Money was never a big motivation for me, except as a way to keep score. The real excitement is playing the game. -Donald Trump

  2. #2
    Join Date
    Aug 2008
    Location
    Central NJ
    Posts
    11,200
    Never seen it either.

    Maybe take off the cover, clean it up and clean the o ring and lube it with a bit of grease?

    I had a similar issue where it leaked from the oil lines, nothing but the factory o rings would make it stop.
    If it's stupid, and it works, it isn't stupid. - Murphy's Law
    2000 426EX,sold
    2004 450R WIP
    -Longtime A.A.D.S. (Accessory Acquisition Disorder Syndrome) sufferer.
    400EX Frequently Asked Questions, CHECK HERE FIRST!

  3. #3
    Join Date
    Feb 2005
    Location
    Twinsburg, OH
    Posts
    1,598
    Yeah the o ring looks pretty flat. We will grab a new one from the dealer and throw it on
    - 05 450r-
    October 2012 QOTM

    Money was never a big motivation for me, except as a way to keep score. The real excitement is playing the game. -Donald Trump

  4. #4
    Join Date
    May 2010
    Location
    Moline, IL
    Posts
    232
    I get my oil filter from Oreilly Auto Parts. It's a Wix 24944. The filter comes with a new o-ring for the cover. Thought you might like to know.
    2007 TRX400EX Outerwears Lid Mod,
    Motoworks slip-on/ground header welds,
    Alba Pro-Elite nerfs & heel guards,
    450r front shocks,PRM bumper & swingarm skidplate. CCP Steering Stabilizer

  5. #5
    Join Date
    Feb 2005
    Location
    Twinsburg, OH
    Posts
    1,598
    Originally posted by kt1148
    I get my oil filter from Oreilly Auto Parts. It's a Wix 24944. The filter comes with a new o-ring for the cover. Thought you might like to know.
    Thanks thats very good to know. I will look into Pricing. My brother said the new gasket fixed it and no leaks now.
    - 05 450r-
    October 2012 QOTM

    Money was never a big motivation for me, except as a way to keep score. The real excitement is playing the game. -Donald Trump

  6. #6
    Join Date
    Nov 2010
    Posts
    1,657
    my hi flo filters come with an o ring too, i've replaced mine a couple times just because i had a new one.

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