Gear shift shaft entrance leaking oil :(

ETZ(including Kanuni), ETS, ES, TS, IFA-RT, BK, Saxon,

Moderators: DAVID THOMPSON, phlat65

Gear shift shaft entrance leaking oil :(

Postby Blurredman » Tue Oct 11, 2016 8:09 am

Hello guys,

Unfortunately my ETZ 250 leaks oil out of the gear lever entrance..

Took a while to track it, as the whole gearbox seemed to leak out in the space of a month or two. Then after allowing it to sit, topping up with oil and cleaning the underside I've been able to get it down to the aforementioned hole.

Has anyone encountered this before?? To my knowledge, there isn't even any sealant or bearing supposed to be on there so I'm unsure how I will go about resolving this, but it isn't making my driveway happy. Nor my clutch too. :lol:

If any one has had this, what did you do to resolve it? Is it possible my clutch side casing has too much wear now on the hole? :(
1972 MZ ES250/2 - 16,000 miles - The project! :)
1979 Suzuki TS185ER - 9,000 miles - Mud :)
1981 Honda CX500B - 91,000 miles - Long Distance :)
1987 MZ ETZ300 - 38,000 miles - Sun :)
1990 MZ ETZ251 - 49,000 miles - Commute :)

ftp://blurredmanswebsite.ddns.net/Vehicle_Documents/MZ_Documents/
User avatar
Blurredman
 
Posts: 1227
Joined: Sat Feb 09, 2013 3:59 pm
Location: South Wales

Re: Gear shift shaft entrance leaking oil :(

Postby Guesi » Tue Oct 11, 2016 12:21 pm

There is an O-Ring with 14x2 mm.

The clutch cover must be dismantled to change this ring.
Remember that the kickstarter stays in the clutch cover....
Guesi Motorradteile
MZ spare parts
http://www.guesi-motorradteile.de
Guesi
 
Posts: 451
Joined: Sat May 15, 2010 2:12 am

Re: Gear shift shaft entrance leaking oil :(

Postby Blurredman » Tue Oct 11, 2016 5:06 pm

I don't ever remember seeing an O-Ring! Thanks!!! Will look into it! 8)
1972 MZ ES250/2 - 16,000 miles - The project! :)
1979 Suzuki TS185ER - 9,000 miles - Mud :)
1981 Honda CX500B - 91,000 miles - Long Distance :)
1987 MZ ETZ300 - 38,000 miles - Sun :)
1990 MZ ETZ251 - 49,000 miles - Commute :)

ftp://blurredmanswebsite.ddns.net/Vehicle_Documents/MZ_Documents/
User avatar
Blurredman
 
Posts: 1227
Joined: Sat Feb 09, 2013 3:59 pm
Location: South Wales

Re: Gear shift shaft entrance leaking oil :(

Postby Guesi » Wed Oct 12, 2016 1:05 am

It is black :-) and hides in the clutch cover :-)
Guesi Motorradteile
MZ spare parts
http://www.guesi-motorradteile.de
Guesi
 
Posts: 451
Joined: Sat May 15, 2010 2:12 am

Re: Gear shift shaft entrance leaking oil :(

Postby Andy_C » Wed Oct 12, 2016 3:48 pm

Guesi.

There is definately an O ring in the outer case that the gearchange shaft goes through.

O ring is easy to replace once you have taken the outer cover off.

The hard bit is taking the cover off and re fitting it !!
Andy_C
 
Posts: 330
Joined: Sun Mar 02, 2014 9:02 am
Location: Somerset

Re: Gear shift shaft entrance leaking oil :(

Postby MichaelTorre » Sun Oct 23, 2016 11:59 am

If you find that cover is hard to take off,
then you should be warned that if you remove that cover
to get to your shunken and hard O-ring, be sure not to
scratch the soft aluminum groove that the O-ring rests in.

best of luck regards,

M
MichaelTorre
 
Posts: 135
Joined: Sun Aug 12, 2012 8:57 am

Re: Gear shift shaft entrance leaking oil :(

Postby Blurredman » Mon Oct 24, 2016 8:15 am

I have recently taken off a clutch cover off my other MZ for other reasons, and have found how the O-ring sits in the shaft entrance.. Looks like it might be a difficult one to get to? However, I've yet to pursue this on the bike in question because the 0-ring set is still in the post, and I need to use the bike to commute..
1972 MZ ES250/2 - 16,000 miles - The project! :)
1979 Suzuki TS185ER - 9,000 miles - Mud :)
1981 Honda CX500B - 91,000 miles - Long Distance :)
1987 MZ ETZ300 - 38,000 miles - Sun :)
1990 MZ ETZ251 - 49,000 miles - Commute :)

ftp://blurredmanswebsite.ddns.net/Vehicle_Documents/MZ_Documents/
User avatar
Blurredman
 
Posts: 1227
Joined: Sat Feb 09, 2013 3:59 pm
Location: South Wales

Re: Gear shift shaft entrance leaking oil :(

Postby Andy_C » Mon Oct 24, 2016 1:09 pm

Not difficult to get at - trust me.

I just used an Engineers scribe to prize the old one out, and the new one just pops in with ease.

Just a shame that you have to go through the nause of taking the primary cover & clutch operating mechanism off - that's the hardest bit !!
Andy_C
 
Posts: 330
Joined: Sun Mar 02, 2014 9:02 am
Location: Somerset

Re: Gear shift shaft entrance leaking oil :(

Postby Blurredman » Sun Nov 13, 2016 8:33 am

Okay guys.


Thanks for your help guys. Seal has been replaced and there is no oil leaks that I can see since the cover has been put back on.. :)


Really interesting is how the old seal semed flush with the shaft entrance, no wonder I never saw it before. i knew there must be something to keep it oil tight but it's so small.
1972 MZ ES250/2 - 16,000 miles - The project! :)
1979 Suzuki TS185ER - 9,000 miles - Mud :)
1981 Honda CX500B - 91,000 miles - Long Distance :)
1987 MZ ETZ300 - 38,000 miles - Sun :)
1990 MZ ETZ251 - 49,000 miles - Commute :)

ftp://blurredmanswebsite.ddns.net/Vehicle_Documents/MZ_Documents/
User avatar
Blurredman
 
Posts: 1227
Joined: Sat Feb 09, 2013 3:59 pm
Location: South Wales


Return to Vintage Motorcycles

Who is online

Users browsing this forum: No registered users and 7 guests