2000 YZ 426 coolant leaking out under water pump cover


6 replies to this topic
  • x654

Posted August 02, 2004 - 05:34 AM

#1

coolant is leaking from bottom of water pump cover. have not taken apart yet... any idea what it may be???? 2000 yz426

  • YAMA455

Posted August 02, 2004 - 05:39 AM

#2

Ya, that is a weep hole that lets you know that your impeller shaft seal has gone bad.

  • John_Lorenz

Posted August 02, 2004 - 05:40 AM

#3

coolant is leaking from bottom of water pump cover. have not taken apart yet... any idea what it may be???? 2000 yz426


Sounds to me like a leak at the water pump cover leaking coolant. Good thing you asked. I would take a look at the impeller as well change the o rings while your at it. :devil: :thumbsup:

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  • x654

Posted August 02, 2004 - 10:46 AM

#4

Thanks Guys, just orderd new seals and bearings. hope it is all that is wrong. :thumbsup:

  • id250f

Posted August 02, 2004 - 02:53 PM

#5

mine was probably just oil seals (03 450 ...) but I changed my bearing too ... bearing actually looked good when I changed it...a 'bit of a pain to get to.

  • Hank

Posted August 03, 2004 - 03:04 AM

#6

You will be good to go once you replace them, been there done that..... Nice heads up move to notice the leakage... :thumbsup:

  • x654

Posted August 11, 2004 - 05:02 PM

#7

:applause:just finished replacing both seals and the bearings, no problems. thanks for the info and all is well. now i just need more engine ice. :devil: thanks for the info all, it helped not going in blind. :thumbsup:





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