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Title: Gearbox issue Post by: samotorsport on August 03, 2022, 07:56:32 am Hey guys , need your opinion on a problem a friend of mine has.
The gearbox has been rebuilt after a breakdown , now there is a problem with first and second gear . Both gears jump out under load , we tried several things , even disconnected the shifter completely , nothing helps . Something is wrong on the inside . I know the problem if one of the gears jumps out due to a misadjusted fork , but in this case both gears jump out under load . The gearbox is coming back out now but what to look for in particular . Anybody ever had this problem ? Title: Re: Gearbox issue Post by: PPRMicke on August 03, 2022, 09:19:02 am Hey guys , need your opinion on a problem a friend of mine has. The gearbox has been rebuilt after a breakdown , now there is a problem with first and second gear . Both gears jump out under load , we tried several things , even disconnected the shifter completely , nothing helps . Something is wrong on the inside . I know the problem if one of the gears jumps out due to a misadjusted fork , but in this case both gears jump out under load . The gearbox is coming back out now but what to look for in particular . Anybody ever had this problem ? It is usually that the slider can be bad on the inside Then it does not grip the gear Could also be the width of the slide that must be machined for it to lock What kind of gear is used stock or Weddle /Finnish? Another thing is if you mix stock gear, this can happen (different dimensions of the gears) /// Micke Title: Re: Gearbox issue Post by: bedjo78 on August 03, 2022, 11:51:27 am syncromesh worn out
Title: Re: Gearbox issue Post by: samotorsport on August 03, 2022, 21:43:02 pm Thanks a lot , we thought about the sliding ring as well as it is the only common part for both.
It is a Rancho gear set Keep you updated . Greets Sam Sent from my iPhone using Tapatalk Title: Re: Gearbox issue Post by: Dougy Dee on August 04, 2022, 02:44:46 am The 1-2 shift fork could be brass.
If the brass foot cracks off it'll mess with shifting... So you ram it when it balks... This could also encourage the 3 'chicklets' or 2 springs, that put tension on the slider in the engagement position, to fall out of place. Could also be a 4 mm fork in a 5mm slider groove. Could also be the dog teeth on the gears rounding off. In any case the trans needs teardown. Title: Re: Gearbox issue Post by: PPRMicke on August 04, 2022, 10:01:45 am Thanks a lot , we thought about the sliding ring as well as it is the only common part for both. It is a Rancho gear set Keep you updated . Greets Sam Sent from my iPhone using Tapatalk A Ps measure the width of sliders If it is a little too wide (1-1.5 mm) it will jump out Hope you have steel forks, if not change to such Ps Weddle is fast with parts 4 days door to door with regular shipping 2 days with express (UPS ) /// Micke |