J718HSL said:
he got married on wednesday, he's leaving for S/ america end of the month, so time was of the essence , he's taking a set of gearbox springs with him, as they can break at any time ( even new ones) .
Gearbox out and apart
- Thread starter Steptoe
- Start date
he got married on wednesday, he's leaving for S/ america end of the month, so time was of the essence , he's taking a set of gearbox springs with him, as they can break at any time ( even new ones) .
I'll post all the bearing sizes later ( as gotterdammerung suggested), so those that want to rebuild their own box, can get their own bearings before taking the box apart to find out the sizes .
Beware the paralever gearbox output seal is different to a standard box .
Beware the paralever gearbox output seal is different to a standard box .
Excellent post Neil, thank you.
Mike
Mike
is it possible to shim the box without that jig shown in pic 7?
Bearing sizes = for a 5 speed gearbox .
Output shaft - input end 6403 c3 , output end 6304 c3
Layshaft - input end 6304 c3 , output end 6304 c3 ( sealed bearing)
Input shaft - input end NU204E , output end 6304 c3
Cookie, i've always used the plate/jig for shimming, don't know how you'd do it any other way, without holding the shafts in their exact positions -
i used to have an end cover with the bearing locations machined out, so you could insert a feeler gauge, but your adjusting for the machined cover all the time, instead of the cover that would be used - if you get my drift
Output shaft - input end 6403 c3 , output end 6304 c3
Layshaft - input end 6304 c3 , output end 6304 c3 ( sealed bearing)
Input shaft - input end NU204E , output end 6304 c3
Cookie, i've always used the plate/jig for shimming, don't know how you'd do it any other way, without holding the shafts in their exact positions -
i used to have an end cover with the bearing locations machined out, so you could insert a feeler gauge, but your adjusting for the machined cover all the time, instead of the cover that would be used - if you get my drift
Excellent post and pics.....
Thank You sir,
that was most educational. i'd heard about the detente spring thing problem. always wondered what was involved and what it all looked like inside.
now i know.
Much Appreciated Steptoe.
Og.
Thank You sir,
that was most educational. i'd heard about the detente spring thing problem. always wondered what was involved and what it all looked like inside.
now i know.
Much Appreciated Steptoe.
Og.
Detox
Guest
Top work fella
great read - more threads like this please.
great read - more threads like this please.
bmwrich58
Registered user
cheers for the info.
B Murr
Registered user
great post Mr Steptoe, thanks for making the effort to do pics,wish the guy good luck
charlie b
Registered user
Excellent thread, the bearing specs info (duly noted) and the piccies were great.
So know we know what that 'achilles heel' one pound spring looks like, I know of new ones breaking too.... good to have a couple in the pannier I guess.
Very illuminating, Thanks Neil!!
As a footnote, there is a lot of local familiarity and expertise with the airheads down here in Argentina. (Chile and Brazil too I am told).
Parts can be tricky but are only a phone call to UK and 5/6 days away if needed but, the local mechanics are very resourceful.
Tell the owner good luck on his travels...
Saludos desde Mendoza
So know we know what that 'achilles heel' one pound spring looks like, I know of new ones breaking too.... good to have a couple in the pannier I guess.
Very illuminating, Thanks Neil!!
As a footnote, there is a lot of local familiarity and expertise with the airheads down here in Argentina. (Chile and Brazil too I am told).
Parts can be tricky but are only a phone call to UK and 5/6 days away if needed but, the local mechanics are very resourceful.
Tell the owner good luck on his travels...
Saludos desde Mendoza
MATKAT
Registered user
Brilliant
Neil,
Excellent and no less than I would expect from you.
Your information and attention to detail deserves a beer next time I see you
Neil,
Excellent and no less than I would expect from you.
Your information and attention to detail deserves a beer next time I see you
B Murr
Registered user
Just a thought Steptoe.
How about doing a video.
It would be an interesting view and you 'd probably flog a good few copies to the rest of us on this site. It would beat Discovery Channell. Something like how to fix the ten most common big fixes neede on a GS? Forget about the hassle and expense of making it a slick production, a warts and all version would do.
How about doing a video.
It would be an interesting view and you 'd probably flog a good few copies to the rest of us on this site. It would beat Discovery Channell. Something like how to fix the ten most common big fixes neede on a GS? Forget about the hassle and expense of making it a slick production, a warts and all version would do.
Frank Warner
Registered user
Removed shims. Put some blue tack/plasticine on the bearing surfaces in the cover - assemble - disassemble and measure thickness of blue tack/plasticine.
Takes some fiddling ... but when you’re in bulla mecanica working is someone else’s shop you can do it.
Frank Warner said:
sounds like a plan.
i've done ducati's in the past by assembling & then measuring shaft float with a vernier or dial guage.
Steptoes way is good - if you've got the shim plate.
If you're stuck somewhere - ask for this stuff.
http://www.dana.com/perfectcircle/Plastigage.htm
if anyone wants it - try TUNES ENG supplies , slough ind. est.
if they ain't got that - plumbers solder would do.
lead fishing weight - chewing gum - wet paper - buisness cards - banana leaves ..............
If you're stuck somewhere - ask for this stuff.
http://www.dana.com/perfectcircle/Plastigage.htm
if anyone wants it - try TUNES ENG supplies , slough ind. est.
if they ain't got that - plumbers solder would do.
lead fishing weight - chewing gum - wet paper - buisness cards - banana leaves ..............
Duncan Richmond
Registered user
Dear Mr Steptoe,
Great info, where can I get the puller for the output flange ?
Many Thanks
Great info, where can I get the puller for the output flange ?
Many Thanks
last time i asked, motorworks did them for about £54.
Steptoe
Was this a tricked up bike?
Was this a tricked up bike?
Duncan Richmond said:
mines home made - puller and holder for undoing the flange nut
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