sherpa t tranny id help needed
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sherpa t tranny id help needed
just need a bit of help id ing a tranny , would anyone have one out , just need some teeth counting , just on the first pair would do
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Re: sherpa t tranny id help needed
1st 29-18
2nd 21-26
3rd 23-24
Should be the same in all model Sherpa T's up to 198/199
2nd 21-26
3rd 23-24
Should be the same in all model Sherpa T's up to 198/199
Re: sherpa t tranny id help needed
thank u kindly for that ,confirms i have a 124 transmission, will be going in a 199 , the only gear i got with the bike was the output shaft gear , which like u say is different to previous models , although it has the same # of teeth the diameter is slightly larger , and the starter gear is also different(lucky i got that with my $40 tranny!) engaging on a different gear , i got a large thrust washer with the tran i bought , can,t work out where it goes , fits the final drive gear but i don,t remember ever seeing one there in any other bully , and the final gear was in place in the 199 cases , it didn,t have one either , any advise ?
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Re: sherpa t tranny id help needed
Hello ims6201. Graham here. Is the final drive gear you are refering to the one joined to the countershaft and sits in the bearing. If it is I don`t think there is a thrust washer on it. As far as I can remember the only washers in a Bully gearbox is the one on the kickstart shaft which goes on after the kick gear. Somewhere on Trials Central I have seen an exploded veiw of a late Sherpa gearbox if you need one. I haven`t got a manual here at home to have a look at so I`m not sure. Good Luck. Graham.
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Re: sherpa t tranny id help needed
Hi ims6201,
As Graham says the only thrust washer is the one between the kickstart gear and the crankcase, there is what they call a bush between the output gear and 3rd gear on the mainshaft.
If you are putting a 124 gear cluster and shafts in 199 cases you might run into a few problems as there was a change from 150/151 on as in different crankcases (not just the clutch cover), bearing retainment, mainshaft etc, there was quite a lot of changes internally from M91/92 to M150/151
If you want a scan of the gearbox or anything else from the M124/125/150/151 parts list PM me your email address its quite interesting the changes that took place, for a Bultaco nerd anyway.
As Graham says the only thrust washer is the one between the kickstart gear and the crankcase, there is what they call a bush between the output gear and 3rd gear on the mainshaft.
If you are putting a 124 gear cluster and shafts in 199 cases you might run into a few problems as there was a change from 150/151 on as in different crankcases (not just the clutch cover), bearing retainment, mainshaft etc, there was quite a lot of changes internally from M91/92 to M150/151
If you want a scan of the gearbox or anything else from the M124/125/150/151 parts list PM me your email address its quite interesting the changes that took place, for a Bultaco nerd anyway.
Re: sherpa t tranny id help needed
hi brownie and graham , i used the 124 shafts ,forks and drum (c`an,t see any change in the drum think thats the same for all 5 sp) yep am in agreement about this mysterious washer , mabey it goes under the fr sproket ? it all fits ok and works ,when i fitted an alpina tran to my mk 2 pursang i had bearing size issues, had to make some adaptor bushes , would love some diagrams , would the the kick start gear ratio in the 199 have been lower than previously used ? makeing it easier to start ? the running 199 i have (older twin to this one) is the easiest starting bully i,ve owned , will be useing alpina 350 primary drive , and a 250 flywheel , i,ve noticed the 199 flywheel(ign) is a bit heavier so it won,t have as much of the tractor in it , the 124 tran i got has the needle rollers on the main shaft on the output gear , i have only seen this on a frontera , was this common on sherpa,s or mabey someone has upgraded it / lms6201@bigpond.com.au
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