Coolant weep hole

This is a discussion on Coolant weep hole within the Engine/EFI/Drivetrain forums, part of the Can-Am DS450 Tech Discussion category; Did the upgrade on my clutch and all went back together real easy and all works good. EXCEPT!!!!!! Now I'm leaking coolant from just underneath ...


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Old 10-12-2012, 07:33 PM   #1 (permalink)
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Coolant weep hole

Did the upgrade on my clutch and all went back together real easy and all works good. EXCEPT!!!!!! Now I'm leaking coolant from just underneath the pump housing, not the housing, but what looks to be a small hole in the clutch cover. The manual has a picture of what they call a weep hole, but it doesn't look like its on the outside of the cover. Never had this problem until I did the clutch work, kinda odd that the impeller or seals would go bad from just sitting while I ordered my clutch parts. Anyone got any ideas?
Also, when I had it apart the pump and all looked and spun just fine.???????
Would it be possible, from me having it apart for almost two weeks, that the seals dried up and "shrunk"? Possibility of it fixing itself?

Last edited by mike_h; 10-12-2012 at 08:16 PM.
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Old 10-12-2012, 09:20 PM   #2 (permalink)
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When mine was apart and put back together after two weeks I had no problems. Have you run the quad a little to check for other leaks yet?
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Old 10-12-2012, 09:30 PM   #3 (permalink)
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Yep, rode it for bit and no other leaks. Luckily the cover is easy to take off. Guess ill ride it for a bit and watch it, then take it back apart if it keeps leaking.
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Old 10-12-2012, 10:01 PM   #4 (permalink)
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Watch your oil for water just in case.
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08 ds 450
Motworks SR4 G2
BCS Intake w/ KN airfilter
Pink Wire Mod
BCS Basket
Epic a arms w/ kyb remote ressi shocks
XMX rear shock
XMX stem and bars

Sig worthy quotes:
I know I'm going to Hell.

Now it's just a matter of go big or go home.
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Old 10-12-2012, 10:51 PM   #5 (permalink)
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The YFZ450s had a problem with this. The seal on the pump side would wear out but the one on the engine side never had any problems. Some of them would quit leaking after it warmed up, you will just have to try it to see. A grove would wear on the pump shaft of the YFZ also, so if you replace the seal, I would check the pump shaft also.
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Old 10-19-2012, 07:49 PM   #6 (permalink)
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Seals must have dried and "shrunk". After a week of riding no more leak! Still gonna replace them to be sure.
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Old 10-19-2012, 07:56 PM   #7 (permalink)
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Good to hear!
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08 ds 450
Motworks SR4 G2
BCS Intake w/ KN airfilter
Pink Wire Mod
BCS Basket
Epic a arms w/ kyb remote ressi shocks
XMX rear shock
XMX stem and bars

Sig worthy quotes:
I know I'm going to Hell.

Now it's just a matter of go big or go home.
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