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| Gearbox casing numbers https://www.ausmini.com/forums/viewtopic.php?f=2&t=78638 |
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| Author: | JC [ Thu Sep 27, 2012 10:41 am ] |
| Post subject: | Gearbox casing numbers |
Folks, I have what I thought was an S box. I've had someone send me a message saying they're of the view it is not based on the casing number. Casing number is 22A1288. I have no desire to sell someone something that is not what I think it is. JC |
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| Author: | Monaco [ Thu Sep 27, 2012 11:08 am ] |
| Post subject: | |
http://www.ausmini.com/forums/viewtopic ... cce8617911 It could be a transitional mk1 s box from around 1968. If it is the other stamped in number starts with 12FAxxxxx See the above thread! |
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| Author: | Monaco [ Thu Sep 27, 2012 11:17 am ] |
| Post subject: | |
http://www.ebay.com.au/itm/Morris-Mini- ... _500wt_922 It appears correct, except the outputs should be hardy spicer, all the numbers are Cooper S. |
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| Author: | drmini in aust [ Thu Sep 27, 2012 11:36 am ] |
| Post subject: | |
Not all Mk1 S boxes got Hardy Spicer outputs. The 1965-66 ones had rubber couplings. |
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| Author: | Nicho [ Thu Sep 27, 2012 12:14 pm ] |
| Post subject: | |
Do all Cooper S boxes have LSD's or are they an option? |
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| Author: | Panthersteve [ Thu Sep 27, 2012 12:22 pm ] |
| Post subject: | |
Nicho wrote: Do all Cooper S boxes have LSD's or are they an option?
None of them |
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| Author: | drmini in aust [ Thu Sep 27, 2012 2:14 pm ] |
| Post subject: | |
Panthersteve wrote: Nicho wrote: Do all Cooper S boxes have LSD's or are they an option? None of them LSDs were available back then for improved production racing as a Special Tuning part. Not as a factory fitted option. |
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| Author: | TheMiniMan [ Thu Sep 27, 2012 4:25 pm ] |
| Post subject: | |
yes , just as the good Doc suggests,,, very early "S" boxes had 3sync & rubber unis,,,, plus that Ley-gear is definately very early "S" for a fact cheers Matt |
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| Author: | tasti [ Thu Sep 27, 2012 5:01 pm ] |
| Post subject: | |
I thought all the early mk1 s boxes had the 333 case while the very late mk1 transitional boxes were 22a therefore it should have the hardie spicers with the 22a identification. |
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| Author: | Mokesta [ Thu Sep 27, 2012 7:08 pm ] |
| Post subject: | |
Would it help to also put up the teeth count for the pinion and crown wheel? That may tell people if it is an S ratio diff. |
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| Author: | drmini in aust [ Thu Sep 27, 2012 7:12 pm ] |
| Post subject: | |
Mokesta wrote: Would it help to also put up the teeth count for the pinion and crown wheel? That may tell people if it is an S ratio diff.
18/62 is a 3.444 ratio. |
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| Author: | 69k1100 [ Thu Sep 27, 2012 7:39 pm ] |
| Post subject: | |
Are you the original owner of the box? If not then who knows what it's history is. The case may not be original, I always learnt to tell by the lay gear anyway. I have a few casings that share numbers with mk2 s coopers (from my research) but the laygear tells of their pedestrian nature. Are hardy spicer unis easy to swap over? I know pot joints use a different side cover. |
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| Author: | drmini in aust [ Thu Sep 27, 2012 7:42 pm ] |
| Post subject: | |
69k1100 wrote: Are you the original owner of the box? If not then who knows what it's history is. The case may not be original, I always learnt to tell by the lay gear anyway. I have a few casings that share numbers with mk2 s coopers (from my research) but the laygear tells of their pedestrian nature.
Are hardy spicer unis easy to swap over? I know pot joints use a different side cover. Pot joints can use a std side cover. But the diff shafts have circlip grooves. To change to hardy spicers you need S side covers (as the bushes & shafts are 1/8" bigger), S diff output shafts, and S drive flanges & bolts.. New, these bits are NOT cheap. You can bore some of the Oz made side covers to fit the S bushes as these covers are thicker. |
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| Author: | JC [ Thu Sep 27, 2012 7:52 pm ] |
| Post subject: | |
Lay gear is 22g232 |
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| Author: | JC [ Thu Sep 27, 2012 7:54 pm ] |
| Post subject: | |
Mokesta wrote: Would it help to also put up the teeth count for the pinion and crown wheel? That may tell people if it is an S ratio diff.
How do I determine that? |
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