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M8 trans oil migration

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Old Sep 5, 2017 | 10:45 AM
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  #31  
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Have not heard of transfer between crank and tranny. Just tranny and primary. Read post N*8
 
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Old Sep 5, 2017 | 11:01 AM
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Using a three hole rated fluid seems like cheap insurance as a first measure.

On my '18 114, I rarely see the need to go over 3500 rpms aside from the occasional blast. That's about 92- ish mph for me and I don't cruise there personally.

I noticed someone posting 75 as 3300 on their '17 114....that's 2700 on my '18 Heritage...big difference. Must be less weight and taller gearing.
 
Last edited by Thingfish; Sep 5, 2017 at 11:31 AM.
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Old Sep 5, 2017 | 11:16 AM
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Originally Posted by Thingfish
Using a three hole rated fluid seems like cheap insurance as a first measure.
Sounds like the way to go. And also frequent checks on the levels.

I hope there is a solution identified soon... that a few bikes show this only means that ALL bikes can suffer from this. So a proper engineered solution needs to come from the MOCO. This is now their engine/transmission across their whole line (with the exception of the Sportster of course...)
 
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Old Sep 5, 2017 | 11:30 AM
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Oh, and I believe this is the thread where most of this is being tracked/discussed?

https://www.hdforums.com/forum/milwa...ion-fluid.html
 
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Old Sep 5, 2017 | 11:36 AM
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I believe motor ol has not been recommended for transmissions for some time now?
 
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Old Sep 5, 2017 | 11:53 AM
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Originally Posted by bklynbob
I believe motor ol has not been recommended for transmissions for some time now?
Oh wow... you are correct... seems that has changed for the M8 Primary...








 
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Old Sep 5, 2017 | 11:56 AM
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But with the oil migration it is going to get Syn3 oil anyway...
 
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Old Sep 5, 2017 | 12:02 PM
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Originally Posted by wachuko
Oh wow... you are correct... seems that has changed for the M8 Primary...









Looks like it's recommending Syn3 for both in the 114 anyway...glad I got the 114...going for a ride...
 
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Old Sep 5, 2017 | 12:09 PM
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Originally Posted by Thingfish
Looks like it's recommending Syn3 for both in the 114 anyway...glad I got the 114...going for a ride...
Is the same transmission between the two... not sure why they would not recommended it for both... weird...

Ride safe!
 
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Old Sep 5, 2017 | 01:05 PM
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Originally Posted by splattttttt
I ride a twinky
And yeah, I guess the new ones don't require it due to hydraulics
Softails don't have a hydraulic clutch.
 
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