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Offline Struens

hot rear diff
« on: September 24, 2016, 07:02:37 PM »
How hot should the rear diff get?  I have had the problem of oil puking out the vent tube.  I changed it and there was water in it.  I put the correct amount in and kept watch.  The oil has not come out the vent tube but, the rear diff to the touch is very hot?  Any ideas or suggestions.  Thanks
2016 CFMOTO Z8
Uni air filter

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Offline NMKawierider

Re: hot rear diff
« Reply #1 on: September 24, 2016, 07:15:08 PM »
If it had water in it there may be bearing or gear surface damage that will cause additional heat. Time will tell but mine also gets hotter then I think it should and I use synthetic lube. I can't hold my hand to it more then a couple of seconds so I guess they do get hotter then others.
2015 Z Force 800 (53") EPS -
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Offline Struens

Re: hot rear diff
« Reply #2 on: September 24, 2016, 07:57:03 PM »
Thanks -  That's where mine is.  Too hot to touch for more than a few seconds!
2016 CFMOTO Z8
Uni air filter

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Offline Cosmosdan

Re: hot rear diff
« Reply #3 on: September 24, 2016, 08:01:13 PM »
If you had water, change it again after a bit. Synthetic oil will help too.
2013 Z6 Trail
Iron Baltic skid plates
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Mostly stock trail riding
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2016 Outlander max 570
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Offline Flipper

Re: hot rear diff
« Reply #4 on: September 27, 2016, 08:37:59 AM »
mix a little kerosene with the diff fluid and run it a bit then drain it.  It will get the all of the water out of it. 

My front diff would get water in it from the vent tube and that is what I had to do,
2015 Zforce 800EX EPS
Synthetic Winch Rope (Orange)
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2006 Polaris Sportsman 700 Twin EFI