Anyone seen this failure before
  • NRY
    Posts:3
    Joined:Fri Apr 05, 2013 5:24 pm
    Anyone seen this failure before

    by NRY » Sat Apr 01, 2017 12:27 am

    Hi Guys,

    We had an interesting failure today racing and I was wondering if anyone had ever seen it before. It looks like a plug which is inserted after machining of an oil return path to the sump . It came out and so did all of the oil, race over.
    (Hopefully the pics attach, my first post here I think :D )

    Neil
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    JimDirt
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    Re: Anyone seen this failure before

    by JimDirt » Sat Apr 01, 2017 10:26 am

    Welcome to the site !! \:D/

    I personally have never heard of this , you might want to PM Ken , the owner here and see if he has run across this , doing a quick Google search , i came up with nothing on the subject


    Ken: memberlist.php?mode=viewprofile&u=3&sid ... fc910645c7

    Sorry i can't be more help ... :(
    2020 CRF450R
    2006 CRF450X
    Image
    Weiser , Idaho
  • NRY
    Posts:3
    Joined:Fri Apr 05, 2013 5:24 pm

    Re: Anyone seen this failure before

    by NRY » Sat Apr 01, 2017 2:08 pm

    Cheers Jim,

    I've spoken to the mechanics here in Australia who took the 450x to multiple wins at all of our desert races for over 10 years, pretty much dominating the scene until Toby turned up, non of them have ever seen it. There is a first time for everything I guess.
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    crfsonly
    Owner
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    Re: Anyone seen this failure before

    by crfsonly » Sat Apr 01, 2017 3:22 pm

    I too have never seen this before. Very odd . I can't even imagine what would have caused it other than a manufacturing defect. What's your plan to repair?

    Ken
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  • Aussiecrf230
    Posts:1964
    Joined:Fri Jan 06, 2006 11:11 pm

    Re: Anyone seen this failure before

    by Aussiecrf230 » Sat Apr 01, 2017 4:43 pm

    Bummer what a way to end a race.
    The photos show just a pressed in plug.
    Is that what I am seeing?
    Seems doomed to failure.

    Needs some safety across it to stop it coming fully out again. At least a detected leak would let you know there is a problem.
    The use of small screws with washers around a welch plug works so something similar perhaps.
    Ray
    Australia

    CRF230F 2004
    C30F Power Up needle
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    Baffle out, Screens In

    It starts,it runs,it gets to where all CRFs can get to without the valve or valve plate dramas
  • NRY
    Posts:3
    Joined:Fri Apr 05, 2013 5:24 pm

    Re: Anyone seen this failure before

    by NRY » Sat Apr 01, 2017 8:43 pm

    Hi Ken,
    I wasn't there but this is the fix. A cut down bolt tapered into the hole apparently. The bike was refilled with oil as it had lost most of it and restarted. It ran but wouldn't idle so they called it a day.

    I've told my mate he's come up with a world first failure =DD
    head fix.jpg
    It was pretty messy.
    Condo oil mess.jpg
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    JimDirt
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    Re: Anyone seen this failure before

    by JimDirt » Sun Apr 02, 2017 8:33 am

    Well hopefully there was no engine damage from running it low on oil .... and yea , that's definitely a job for a Pressure Washer :-~
    2020 CRF450R
    2006 CRF450X
    Image
    Weiser , Idaho
  • driver3
    Posts:46
    Joined:Tue Jun 21, 2011 11:45 am

    Re: Anyone seen this failure before

    by driver3 » Wed Jun 14, 2017 9:56 am

    Is that your gas tank in the last pic on the left? Please send a pic of this bike!

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