Kawasaki Concours Forum
The C10, aka Kawasaki Concours - The Original => The Bike - C10 => Topic started by: dboogie2288 on May 31, 2011, 03:59:35 PM
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First off, WOAH!
COG/ZGGTR has changed so much over the past year or so and what a mess! Anyhow, glad I found my way back here. I had searched here and there and I think its the water pump seal that is going bad. My 86 connie with 60k started with an oil leak early in the year. I had pulled the plastic off to try and diagnose, with no luck as of yet. Just recently after moving to remove the plastic, I saw coolant in the oil leak. I think it's that water pump seal that I've seen threads on...
Can anyone confirm this, and if so point me in the right direction to correct? Thanks,
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The water pump has an O-ring seal to keep the oil from leaking out of the engine case. The O-ring is replacable if is the cause of the oil leak. Look at the bottom of the water pump. You should see a small weep hole. If you see antifreeze leaking out of the hole you probably need a new pump. It is not rebuildable. Murph's has them.
http://www.murphskits.com/catalog/product_info.php?cPath=1_93&products_id=149 (http://www.murphskits.com/catalog/product_info.php?cPath=1_93&products_id=149)
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If your coolant is coming out of the weep hole you need a new pump.
If oil is coming from the weep hole you need a new oil seal but you might as well do the pump replace because you may need it soon anyhow and a new seal is tough to get seated so it stays put. A thought on the seal - if it is leaking oil that oil must be going thru the bearing. If the oil washed out the bearing grease then the bearing life may be limited with a new seal?
I've done the oil seal twice or thrice, finally enlarging it a little with a socket pressed in a little to widen the O.D. of the seal. Some say loctite red does a good job holding it.
If oil is coming from the o-ring area and not the pump you can replace the o-ring. You will want to replace the water pipe o-ring in the process.