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Old 04-18-2013, 08:42 AM   #1
SlowandSteady OP
Wooded trail dreamer
 
Joined: Jun 2007
Location: Gilroy, CA
Oddometer: 44
2010 KTM 450 Water Pump Gasket Leak

Hey guys, I recently replaced my outer water pump seal as well as my water pump housing gasket. I torqued to the recommended 10nm. The first try the gasket weeped quite a bit. I re-torqued to 11nm but the leak continued. I ordered a new gasket and torqued to 11 nm as well. The leak stopped. I took the bike out for a 2 hour single track ride and didnt have any issues. On cool down the gasket started weeping a drop a day. It's leaking where the pump housing is closest to the clutch cover. I'm afraid to torque it anymore. Any suggestions?

And yes the gasket surfaces are clean. Any help is appreciated.
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Old 04-19-2013, 11:26 AM   #2
FlyingDutchman
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Joined: Jun 2007
Location: Ontario. Canada.
Oddometer: 774
Quote:
Originally Posted by SlowandSteady View Post
Hey guys, I recently replaced my outer water pump seal as well as my water pump housing gasket. I torqued to the recommended 10nm. The first try the gasket weeped quite a bit. I re-torqued to 11nm but the leak continued. I ordered a new gasket and torqued to 11 nm as well. The leak stopped. I took the bike out for a 2 hour single track ride and didnt have any issues. On cool down the gasket started weeping a drop a day. It's leaking where the pump housing is closest to the clutch cover. I'm afraid to torque it anymore. Any suggestions?

And yes the gasket surfaces are clean. Any help is appreciated.

Same thing happened to me. It stopped leaking after the second ride. I talked to a tech I was riding with and he predicted that it would stop after a bit of riding.
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