EVO All Evo Model Discussion

Third time in 2 years transmission leak

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Old Jun 18, 2019 | 09:39 AM
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Default Third time in 2 years transmission leak

Not sure what’s wrong. 89 tour glide. Every 6 months or so the transmission starts to leak. It just started again. Is there something more going on then just seals? Any ideas what to look into?
 
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Old Jun 18, 2019 | 09:54 AM
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Originally Posted by 800screws
Not sure what’s wrong. 89 tour glide. Every 6 months or so the transmission starts to leak. It just started again. Is there something more going on then just seals? Any ideas what to look into?
Which part of your transmission is leaking?
 
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Old Jun 18, 2019 | 10:02 AM
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How do you know it is the transmission leaking?

Mileage?

What has been done to fix the leaks (a little detail would help, not just replaced a seal etc).

Which front transmission pulley setup is on the bike, original or the upgraded that came out mid `94?

You need to be specific for us to help you...
 

Last edited by Dan89FLSTC; Jun 18, 2019 at 10:05 AM.
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Old Jun 18, 2019 | 10:21 AM
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Sorry! Some More info. Bike has the original 89 parts. About 30000 miles. I did the shifter seal and main shaft seal. It’s def coming out of the mainshaft area again.
 
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Old Jun 18, 2019 | 11:11 AM
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In addition to the large main shaft seal, did you replace the quad seal? What about the small seal inside the 5th gear?

In the real world, I was told not to fill my tranny full, and that would lessen the chance of an oil leak. Not telling you to not to fill your tranny full, but that's what I do.
 
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Old Jun 18, 2019 | 12:41 PM
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the splines on the pulley might be worn. if they are you'll never get the leak to stop and if you run it like that too long the splines on the main gear will be shot too.
 
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Old Jun 18, 2019 | 01:49 PM
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Yes I did do
the quad seal. Not the fifth gear seal. The pulley is actually new. I went up a few teeth on that the last time it leaked.
I could try draining it some! It’s bound to happen on its own now
 
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Old Jun 18, 2019 | 05:37 PM
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16 0unces gear lube is all it takes.

That little oil seal that seals the space between the main drive gear and mainshaft is often overlooked, folks don`t realize it is there and it drives them crazy because they think they have replaced all the seals...

It the pulley configuration the latest design, the upgrade that came out mid `94?

Did you do the transmission work yourself?
 
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Old Jun 18, 2019 | 05:56 PM
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No the pulley is for the 89 setup. Nothing has been replaced with the later evo setup.
 
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Old Jun 18, 2019 | 07:33 PM
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They updated that pulley design to give it more bite on the shaft, in addition to the locking plate to prevent the large nut from coming loose.Ask me how I know.
 
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