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Well this is the second time for my shifter shaft seal to go bad. The first time it was replaced under warranty and lasted about 15k miles. Now it's leaking again so I'm replacing it myself. I'm posting this because I think some people that think they have a transmission output shaft seal leak when they really have a shifter shaft seal leak instead. The oil leaks out and can blow back to the sprocket area leaving you to believe that it is the trans output shaft. When really the likelyhood is a bad shifter shaft seal. This time when the seal failed it was much easier to trace the leakage because I use Redline Heavy Shockproof oil now which is a very bright red. A little visual with a dental mirror before disassembly verified that.

Disgusted with the amount of time the initial repair held up I decided to do a little research on shifter shaft seals. I came to find out that the cheap ass Harley seal is a single lip seal that quite a few people have had problems with failing again after being replaced. So I investigated and turned to Cometic for a solution to the shifter shaft leak. Turns out they have a high quality, double lip shifter shaft seal with tension spring. Perfect! And you can see by the pics, just how cheap the stock seal is. IMO, Cometic makes great gaskets. I rebuilt part of my engine using them and I'm very satisfied.

Hopefully I won't have this problem again. Can't wait to get it all back together. Especially after slapping the 3.37 gearing in there. Got the old hub pressed into the new basket yesterday! The weather is going to be crappy here for the next few days so I'm taking my time to keep myself busy.

I'll let you know how it turns out once I get it together.
 

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Mines leaking too. Planning fixing this winter. With most thing, will go non Harley. Its reason like this I do not want a new bike. Better off making the one you have better.
 

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Mine was leaking also. Just had it "fixed" under extended warranty, which will expire soon, before the new H-D seal starts to again. So, when I have to replace it again, out of warranty, where would I find the Cometic seal that you're talking about.
 

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Discussion Starter #4
srb8267 said:
Mine was leaking also. Just had it "fixed" under extended warranty, which will expire soon, before the new H-D seal starts to again. So, when I have to replace it again, out of warranty, where would I find the Cometic seal that you're talking about.
You can contact HDWRENCH on the forum for dealer price which is cheaper than direct. Or direct to http://www.cometic.com
 

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nice thread timbo. i was just going to ask this question as well, as i am changing the seal on a friends bike. At first i was thinking it came h-d so i stay with it now after the side by side pics it seems a no brainer.
 

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Same Leak

I have the same leak on my 02 RK with 20k miles. Dealer tells me I need a new shifter shaft & seals, 6 hours of labor & $200 parts. Does this sound right?
 

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Discussion Starter #8
miken488 said:
I have the same leak on my 02 RK with 20k miles. Dealer tells me I need a new shifter shaft & seals, 6 hours of labor & $200 parts. Does this sound right?
Hmmm. Unless there is a groove cut into the shifter shaft from the old seal I don't know why they'd want to replace it.

Just to replace the shifter shaft seal itself plus the inner primary and starter jackshaft seals while your in there should take about 4 hrs.
 

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This is what i needed to hear

My 05 FLHT has this leak.
I'm planning on taking the pile into the dealer to getter done.
and by chance checked here on the forum to see if this problem was mentioned.

thanks for taking the time to post this up.

maybe while i'm in there they can check out the valve seals and i can go 95


Great post.

Thanks

Trix{salute(
 

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Mine just started leaking, but on the trap door side. The bolts on the underside were finger tight. I am gonna have to drop the exhaust to really get to them. Glad I caught this at home in the garage instead out in the middle of nowhere. The oil was at first leaking, flowing down along the oil pan and a drop or two would show up on the primary side, couldnt find the leak, then it just started dripping straight down under the trap door.
AP
 

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Mine is doing exactly the same thing from the shaft and I was able to figure out where the oil was coming from because I'm also using Redline Shockproof. Taking it in tomorrow to have them fix it before my warranty is over. Thanks so much for posting this.
 
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