Date: 28-03-24  Time: 08:42 am

Author Topic: Gear selector shaft oil seal  (Read 3210 times)

ozziesda

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Gear selector shaft oil seal
« on: 03 April 2016, 08:47:32 pm »
Hello foccers,

Just wondering if the oil seal on the gear selector shaft can be replaced from 'the outside' as mine has begun to leak noticeably. My engine was very slightly overfilled with oil last service, only by about 100mls, but I'm wondering if this would cause it to leak.... I.e. is the oil level causing the leak?!

Is it just a case of taking the sprocket cover off, gently prise the old seal out, clean the seal seat and drift a new one in??

Thanks in advance.

Dave.

bandit

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Re: Gear selector shaft oil seal
« Reply #1 on: 03 April 2016, 09:23:52 pm »
I would say that you can replace as you said if you look at this, not sure that 100ml would cause that much pressure to cause a leak.


 https://www.yamahamotorcyclespares.co.uk/genuineparts/9654/19/yamaha%20fzs600%20fazer/shift%20shaft?uID=0

Deefer666

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Re: Gear selector shaft oil seal
« Reply #2 on: 05 April 2016, 09:04:29 am »
Do it properly. Its not difficult to remove the clutch, pull out the rod and replace the seal

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unfazed

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Re: Gear selector shaft oil seal
« Reply #3 on: 06 April 2016, 02:45:28 pm »
Do it properly. Its not difficult to remove the clutch, pull out the rod and replace the seal

 :agree Listen to the man, do it once, do it properly

ozziesda

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Re: Gear selector shaft oil seal
« Reply #4 on: 07 April 2016, 09:16:34 pm »
Does the correct oil level in the sump normally sit above this seal or is my few mls extra causing the issue?

I'll have a look in the Haynes Manual at how to remove the shaft. I've never tackled anything like this before and its my daily driver at the mo while my V-strom is up on blocks.

I'm not lazy or a butcher regarding my maintenance and anything my bikes ever need, they get, but I honestly can't really see how going through all the hassle of stripping out the clutch, new gasket etc is of any advantage over carefully drifting in a new seal along the shaft?!! It has a seat to butt up against and can't go in too far and either way the splined part of the shaft HAS to go through the new seal at some stage of doing the job?

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« Last Edit: 07 April 2016, 09:17:57 pm by ozziesda »

bandit

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Re: Gear selector shaft oil seal
« Reply #5 on: 07 April 2016, 10:15:42 pm »
I would say oil level would be above as it's 2.7L with oil filter change, you could try dropping the level to see if it stops leaking.
If you can change the seal without removing the clutch go for it, plenty of peeps change them the way you said theirs vids showing you how.   

unfazed

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Re: Gear selector shaft oil seal
« Reply #6 on: 07 April 2016, 10:54:13 pm »
100ml overfill would not blow any seals and any overfill would most likely be blown out the crankcase ventilation system into the airbox

Unusual seal to go, are you absolutely sure it is that seal which is leaking.

ozziesda

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Re: Gear selector shaft oil seal
« Reply #7 on: 08 April 2016, 12:31:53 am »
Definitely that one. Bike was sat up for a while by previous owner and got new chain and sprockets before I bought it. I reckon something quite aggressive (carb cleaner etc) was used to clean the area before the new front sprocket was installed and damaged the seal.

It only really leaks a few drops when the oil is hot and the bike is in the side stand.

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Deefer666

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Re: Gear selector shaft oil seal
« Reply #8 on: 08 April 2016, 08:38:49 am »
Does the correct oil level in the sump normally sit above this seal or is my few mls extra causing the issue?

I'll have a look in the Haynes Manual at how to remove the shaft. I've never tackled anything like this before and its my daily driver at the mo while my V-strom is up on blocks.

I'm not lazy or a butcher regarding my maintenance and anything my bikes ever need, they get, but I honestly can't really see how going through all the hassle of stripping out the clutch, new gasket etc is of any advantage over carefully drifting in a new seal along the shaft?!! It has a seat to butt up against and can't go in too far and either way the splined part of the shaft HAS to go through the new seal at some stage of doing the job?

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Your bike, have at it.

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