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 Post subject: mk1 998 cooper gearbox
PostPosted: Wed Mar 28, 2018 7:41 am 
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can anyone confirm gearbox type for a mk1 998 cooper
my cooper has a 22A1288 with remote 3 syncro B type
but according to bmc records the mk1 cooper 998 was fitted wth 22G68 3 syncro B type with remote
if anyone can shed some light on this would be much appreaciated


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PostPosted: Wed Mar 28, 2018 8:19 am 
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22G68 until around 1967/68, then 22A1288. Should also have a 9F number on the left. Been through this myself. The attached file is quite useful :)


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PostPosted: Thu Mar 29, 2018 8:32 pm 
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thankyou very helpful when you say 9f on the left could you elaborate


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PostPosted: Thu Mar 29, 2018 9:39 pm 
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You have the 22A1228 on the right in raised casting, on the left there's a small flat area on the face with a number stamped into it. That's the number 9F***** which denotes the Cooper gearset inside. Just like on the engine. Don't get too hung up on it though. Mini gearboxes were renowned for going bang and a new one would just be found and bits swapped over. The cases are mostly the same anyway. What's important is what's inside. Check the laygear for 22G232 stamped on it, or possibly 22G1100 on yours as it may be a later one. They're the same, just renumbered towards the end of the 60's for whatever reason :)


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PostPosted: Sat Jun 09, 2018 12:52 pm 
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BLT wrote:
You have the 22A1228 on the right in raised casting, on the left there's a small flat area on the face with a number stamped into it. That's the number 9F***** which denotes the Cooper gearset inside. Just like on the engine. Don't get too hung up on it though. Mini gearboxes were renowned for going bang and a new one would just be found and bits swapped over. The cases are mostly the same anyway. What's important is what's inside. Check the laygear for 22G232 stamped on it, or possibly 22G1100 on yours as it may be a later one. They're the same, just renumbered towards the end of the 60's for whatever reason :)


Hi. Just founded this one: Casting 22A1288, close ratio, 4 syncro, laygear 22G714, sandwich remote and final ratio 3.44. Maybe ADO16??? Number on the left is 12FG3840...

Thanks.

RT


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PostPosted: Sat Jun 09, 2018 9:14 pm 
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That's a very early Austin Morris 1300 box with the weird 3 syncro gear kit they fitted to them .

It's not a mini box


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PostPosted: Sun Jun 10, 2018 9:25 am 
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251 ENG wrote:
That's a very early Austin Morris 1300 box with the weird 3 syncro gear kit they fitted to them .

It's not a mini box


Ithink so too. When you say "the weird 3 syncro" , you mean 4 syncro, right? This one has 4 syncro , but i think FR was swamped somepoint...


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PostPosted: Sun Jun 10, 2018 9:34 am 
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I understand the 714 laygear to be 3 synchro - I recently sold a NOS one to 251ENG.

22A1288 is a 3 synchro casing.

A picture of the gears themselves will quickly give the answer. Also the diff housing.


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PostPosted: Sun Jun 10, 2018 8:27 pm 
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Sorry guys. You're abolutely right. My mistake. Spent the whole day playing aroud gearboxes and i messed up the photos. The 4 syncro, close ratio, sandwich type one is the 22G846 just near to this one. They look pretty much the same on the outside (both as dirty), and i did made some confusion. I do apologize for that. :oops:
That's why i couldn't found any information about it... :lol:
BTW..., what is this 22G846 all about?

Cheers.

RT


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PostPosted: Sun Jun 10, 2018 8:33 pm 
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Just noticed this last one has no reverse switch on it... That's what you get when spending too long in your "men's cave"... :lol: The old oil smell does gets you!!! :lol: :lol: :lol:


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