It's a 3 synchro, baulk ring synchro.
Can be either A or B form gears.
used on 850, 998, 997 and 998 Cooper, remote shift or magic wand.
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| Gearbox question? https://www.ausmini.com/forums/viewtopic.php?f=2&t=39960 |
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| Author: | adnams4ever [ Sun Mar 09, 2008 10:05 am ] |
| Post subject: | Gearbox question? |
Hi All, Can anyone please identify this Gearbox number for me: 22G68. Which model is it from & when was it used (which era)? Any other detail would be appreciated (synchro, etc). It also has a serial number 5/22013. Will that give me any info? Thanks. |
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| Author: | suffolk [ Sun Mar 09, 2008 10:13 am ] |
| Post subject: | |
From what i can gather it is a 850 magic wand type with baulk rings and is a 3 synchromesh..cheers!! They also came as a remote control type... |
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| Author: | drmini in aust [ Sun Mar 09, 2008 10:14 am ] |
| Post subject: | |
It's a 3 synchro, baulk ring synchro. Can be either A or B form gears. used on 850, 998, 997 and 998 Cooper, remote shift or magic wand.
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| Author: | adnams4ever [ Sun Mar 09, 2008 10:27 am ] |
| Post subject: | Gearbox question? |
drmini in aust wrote: It's a 3 synchro, baulk ring synchro.
Can be either A or B form gears. used on 850, 998, 997 and 998 Cooper, remote shift or magic wand. Thanks everybody. So this could be the correct gearbox for my 997 Cooper? drmini what are A OR B form gears? |
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| Author: | suffolk [ Sun Mar 09, 2008 10:37 am ] |
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Doc will tell you more than me but i think its to do with the angles of the teeth on the laygear...at what angle they mesh... |
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| Author: | drmini in aust [ Sun Mar 09, 2008 11:19 am ] |
| Post subject: | |
The tooth form was changed around 1964, B form are stronger- and were used on all A series Mini boxes thereafter. I think their `pressure angle' is different. To see if the box actually has Cooper gears in it, count the teeth on 3rd gear, should be 24T. (23T was used on 850). A Cooper 997 laygear (A form) should be p/no 22G76, or 22G197. Many parts for these old boxes are now NLA, so good luck...
B type gears can be fitted into these boxes if you fit the whole geartrain. |
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| Author: | adnams4ever [ Sun Mar 09, 2008 1:18 pm ] |
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drmini in aust wrote: The tooth form was changed around 1964, B form are stronger- and were used on all A series Mini boxes thereafter. I think their `pressure angle' is different.
To see if the box actually has Cooper gears in it, count the teeth on 3rd gear, should be 24T. (23T was used on 850). A Cooper 997 laygear (A form) should be p/no 22G76, or 22G197. Many parts for these old boxes are now NLA, so good luck... B type gears can be fitted into these boxes if you fit the whole geartrain. Great, thanks Doc my cars a 63 & the gearbox is joined to a van motor at the moment. When I get a chance I will check it out. Good info thanks again. |
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