seal failure
Tourer
Joined: Mar 2007
Posts: 330
Likes: 18
From: Sacramento area
Thinking seriously on it but it sure galls me to have to fix harleys problem. 2019 's will be out soon
. I'm waiting to see if they have something different in the trans-primary
. I'm waiting to see if they have something different in the trans-primary
Seasoned HDF Member
Joined: Sep 2009
Posts: 17,148
Likes: 6,171
From: SE Michigan
John Maxwell does a good job explaining your issue...
https://youtu.be/Rm57U2SUYaE?t=43s
He has a pretty good youtube channel that covers a whole host of subjects...
https://youtu.be/Rm57U2SUYaE?t=43s
He has a pretty good youtube channel that covers a whole host of subjects...
Thread Starter
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Advanced
Joined: Jul 2018
Posts: 90
Likes: 62
From: USA
Seal failure
The factory has started to experiment with different seals (as per my dealer/tech). He states "I called harley corp.and they want you to ride the bike 1,000 miles to see how much fluid transfers from the trans to the primary" . "By the way, I had to put 14.5 oz.of fluid in the trans and your primary case had 14.5 oz too much". All I can say is watch for this before your factory warranty is up. I caught it with 2 months to spare. Lucky me ! ?
Road Master
Joined: Dec 2010
Posts: 1,049
Likes: 264
From: Fresno Ca
My mistake if this is really a thing. There must be some changes to the M8s I dont know about. The only possible way this could happen on my 2009 would be for it to somehow flow through the center of the main shaft where the clutch push rod is. There is no other connection between the two on my bike.
Thread Starter
|
Advanced
Joined: Jul 2018
Posts: 90
Likes: 62
From: USA
My mistake if this is really a thing. There must be some changes to the M8s I dont know about. The only possible way this could happen on my 2009 would be for it to somehow flow through the center of the main shaft where the clutch push rod is. There is no other connection between the two on my bike.
Intermediate
Joined: Aug 2007
Posts: 26
Likes: 6
From: CT
I have the same issue with my 18 RK. I had it serviced 2 weeks ago at 4400 miles and my independent found that the transmission was down half a quart and the primary was overfilled (I specifically asked him to check for this after reading the forums 
). I returned Sunday from a 4400 mile trip to Colorado. I checked the trans oil level in Colorado after 2200 miles and it looked good, will check it again tomorrow and see what it looks like now... bike now has 8800 miles.
If the trans oil level is down significantly I'll bring it to the dealership and start the warranty process. I hate to do that, I haven't had good luck with my local dealership's service dept., but I guess I need to get it documented if it's still happening.
By the way, my buddy who road out with me on his 2 week old 18 SGS checked the trans level on his while in Colorado, and it was at ADD. His is bringing his to the dealership tomorrow.
). I returned Sunday from a 4400 mile trip to Colorado. I checked the trans oil level in Colorado after 2200 miles and it looked good, will check it again tomorrow and see what it looks like now... bike now has 8800 miles.If the trans oil level is down significantly I'll bring it to the dealership and start the warranty process. I hate to do that, I haven't had good luck with my local dealership's service dept., but I guess I need to get it documented if it's still happening.
By the way, my buddy who road out with me on his 2 week old 18 SGS checked the trans level on his while in Colorado, and it was at ADD. His is bringing his to the dealership tomorrow.
Outstanding HDF Member
Joined: Mar 2009
Posts: 2,216
Likes: 102
From: Central Illinois
Number 13 in this schematic is the seal you need. Oil can flow from the transmission into the primary if this seal leaks. Although it could also be a problem with the mainshaft. Since it appears H-D is having a number of these, it's a good bet either they had a problem with assembly at the factory screwing up the seal, or out of spec components.
Tourer
Joined: May 2006
Posts: 464
Likes: 42
From: NC
He is pretty smart... But I guess we all have our own opinions. Hate it that you all are having so many issues with your bikes. Hopefully Harley can get it fixed for you.
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Outstanding HDF Member
Joined: Oct 2009
Posts: 2,791
Likes: 690
From: Smalltown,USA
My mistake if this is really a thing. There must be some changes to the M8’s I don’t know about. The only possible way this could happen on my 2009 would be for it to somehow flow through the center of the main shaft where the clutch push rod is. There is no other connection between the two on my bike.
Last edited by tbob; Jul 31, 2018 at 04:43 AM.