Trans/Primary area oil leak question!
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Stellar HDF Member
Joined: Jan 2008
Posts: 3,036
Likes: 65
From: Earth
Trans/Primary area oil leak question!
I have a transmission leak between my primary and trans on a 06 Ultra with 36,000 miles on it. I have been running Redline shockproof for about the last 20,000 miles. The leak is the Pepto red color, so I know it trans fluid. It was only a few ounces low so may not be a big deal, just made a mess on the bottom of the oil pan and made it look worse If anyone else has had this issue and had it repaired can you let me know what the cost was? We are planning on leaving for Yellowstone on the 25th.Total trip mileage will be in the 5,000 mile area. Not sure I can get this turned around by then at the dealer and I do not have time to dig into it before the trip. I am mechanical and have this next weekend but am afraid that this may be a big job. Any advice from those that have done this repair? Any special tools to get the comp and clutch pack assembly off? Dose the trans need to be pulled as well? And Opinions on getting this done after the trip? I know I would just have to keep it topped off but there is also a metal to metal sound between 2nd and third and 3rd and 2nd. Not the normal clunk sound. Could have been from being low on oil. I just filled it and will try another ride after dinner tonight. Any and all opinion's welcome. Thanks for reading.
Extreme HDF Member
Joined: Sep 2010
Posts: 14,744
Likes: 402
From: Phoenix '53, '88, '09 Big Twins
it is probably the seal on the tranny shaft, but it may have another cause.
leaks and seeps can be found by spraying the area with drugstore foot powder.
fluids on the externals are pushed around by wind when riding, and will flow to the left side, when parked
1. check the trap door ( rt side end cover) bolts, they should be at 25 ft lbs.
2.) check the tranny vent tube, wasps often fill this with mud - it is quite common ( I found the radiator overflow tube on my truck blocked by mud just today)
a.) service manual
b.) no air impact tools on the comp sprocket or clutch hub nut ( left hand thread !!)- air tools, can knock the magnets off the rotor destrying the stator, they can also damage the shifter cogs in the tranny.
c.) straight forward job, but often best given to someone who does it all the time, they may find a problem that a novice wouldn't
mike
leaks and seeps can be found by spraying the area with drugstore foot powder.
fluids on the externals are pushed around by wind when riding, and will flow to the left side, when parked
1. check the trap door ( rt side end cover) bolts, they should be at 25 ft lbs.
2.) check the tranny vent tube, wasps often fill this with mud - it is quite common ( I found the radiator overflow tube on my truck blocked by mud just today)
a.) service manual
b.) no air impact tools on the comp sprocket or clutch hub nut ( left hand thread !!)- air tools, can knock the magnets off the rotor destrying the stator, they can also damage the shifter cogs in the tranny.
c.) straight forward job, but often best given to someone who does it all the time, they may find a problem that a novice wouldn't
mike
Last edited by mkguitar; May 13, 2012 at 05:56 PM.
Road Master
Joined: Jul 2011
Posts: 1,020
Likes: 2
From: Canton, Ga
My dealer told me my shifter shaft seal was leaking and quoted me around $600. I went home, cleaned up around the shifter, no fluid leak has been detected since.
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Stellar HDF Member
Joined: Jan 2008
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From: Earth
After cleaning up the area and taking a 1/2hr ride I can see that the trans shifter shaft seal is the culprit and as there is a line of oil running down the side of the oil pan. I am thinking of waiting on this until after the trip and diving into this job this winter. Anyone else have a similar leak? I can not imagine this causing any other issues as long as I keep an eye on the trans oil level every couple of fill ups.
Last edited by SpiderPig; May 13, 2012 at 10:12 PM.
Road Master
Joined: Dec 2010
Posts: 1,049
Likes: 264
From: Fresno Ca
Mine was the inner primary seal to the trans shaft. About 2-3 hours labor in a shop. But several months later the inner primary bearing went out and the seal was changed again at the same time. They kept it 2 days for that. All under warranty so I don't know the cost. 17,000 miles later no leaks
Seasoned HDF Member
Joined: Apr 2006
Posts: 10,675
Likes: 95
From: Billings,Mt.
I had gone thru three shift shaft seals and 1 shift shaft in 55,000 miles on my 'o6..Just makes a huge mess underneath.
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Elite HDF Member
Joined: Sep 2007
Posts: 4,928
Likes: 69
From: Near Myrtle Beach, SC
Lose the heel shifter. Go toe only. People tend to "stomp" the heel end of the shifter and that causes problems with shifter seals and shafts over time...not on every bike...but on enough of them to be an issue. You have more finesse in your toe anyway, and it makes it much easier to find neutral if you are using your toe. IMHO
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Stellar HDF Member
Joined: Jan 2008
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From: Earth
Anyone have a link to a good "how to" step by step process on this. I have a manual but looking for step by step pictures as well and real life feedback. Anyone on here done this DIY? If so looking for advice on how hard it is?
Cruiser
Joined: Dec 2009
Posts: 163
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From: Frankilnton/Houma LA
After cleaning up the area and taking a 1/2hr ride I can see that the trans shifter shaft seal is the culprit and as there is a line of oil running down the side of the oil pan. I am thinking of waiting on this until after the trip and diving into this job this winter. Anyone else have a similar leak? I can not imagine this causing any other issues as long as I keep an eye on the trans oil level every couple of fill ups.