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  #1  
Old 04-08-2018
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Water in Gearbox Oil

Hi all,

After a little advice from the brains trust. Last time I washed the mud off my bike, I noticed the oil filler cap wasnít fully closed - it had somehow managed to unwind a thread on the ride?

So some water has entered here and Iím wondering the best way to clear the water?

1. Should I get the oil hot and drop it?
2. Drop it now, fresh oil, get it hot and drop it with some engine flush added?

Thanks for any advice.
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Old 04-08-2018
Jallopy Jallopy is offline
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Get it hot and drop it. Will come out milky colour if water has entered.

May have to repeat until oil comes out normal colour.
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Old 04-08-2018
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Quote:
Originally Posted by bigberger View Post
Hi all,

After a little advice from the brains trust. Last time I washed the mud off my bike, I noticed the oil filler cap wasnít fully closed - it had somehow managed to unwind a thread on the ride?

So some water has entered here and Iím wondering the best way to clear the water?

1. Should I get the oil hot and drop it?
2. Drop it now, fresh oil, get it hot and drop it with some engine flush added?

Thanks for any advice.
if the water has mud in it i would not run the bike i would just drop the oil first then get some cheap stuff run it then drop that and all should be good
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Old 04-08-2018
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Originally Posted by ggg View Post
if the water has mud in it i would not run the bike i would just drop the oil first then get some cheap stuff run it then drop that and all should be good


I was thinking the same. I canít see any evidence of dirt entering with the water, but can definitely see water in the top of the filler cap.

I might play it safe and do this, Iíve got some Delo 400 somewhere..
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Old 04-08-2018
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Id be poping [pun] the clutch cover off.
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Old 04-08-2018
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Just dropped oil, looks clean. Canít see any water/milky goodness.
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Old 04-08-2018
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I've noticed some milky stuff in the cap before and oil has been fine. I think and tiny amount of water will steam up and get caught here. Eventually if you run the bike hot long enough it boils off and goes out the breather. I'm talking about tiny amounts from condensation etc.......point is, I don't get upset if I see a minor milky residue in my cap.

If the oil comes out of the sump plug discoloured, that is a different story.
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Old 04-08-2018
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Pulled the clutch cover to be sure, all looked good. Fresh stuff in with Wynns engine flush and a quick blat through the bush. Oil was clean coming out. I think Iíve dodged a bullet, phew!

Thanks everyone.
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Old 05-08-2018
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Quote:
Originally Posted by bigberger View Post
...Fresh stuff in with Wynns engine flush and a quick blat through the bush...
Hang on! The flush goes in with the OLD oil, not the fresh stuff!

Luckily Wynns is the only engine flush that maintains the EP rating of the original oil. Re-drop the oil BB...
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Old 05-08-2018
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Quote:
Originally Posted by Nutty View Post
Hang on! The flush goes in with the OLD oil, not the fresh stuff!



Luckily Wynns is the only engine flush that maintains the EP rating of the original oil. Re-drop the oil BB...


I probably didnít write my above post clearly - fresh stuff in (delo 400), quick blat in bush with Wynns to get hot, then home and dropped it. Motul back in, bike sitting ready (on back of ute actually), but stuck on Dad duties..

Could be worse, lucky my boyís a little legend!
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