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| Crownwheel & Pinion https://www.ausmini.com/forums/viewtopic.php?f=2&t=96899 |
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| Author: | cooperess [ Tue Feb 27, 2018 7:36 am ] |
| Post subject: | Crownwheel & Pinion |
I have several crownwheels marked 17/62. Is it ok to match an 18 tooth pinion with the crownwheel mark 17/62? If not why not? |
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| Author: | drmini in aust [ Tue Feb 27, 2018 7:43 am ] |
| Post subject: | Re: Crownwheel & Pinion |
No. Because the 18T pinion is bigger diameter. The 62T crown wheel that belongs with it is slightly smaller than yours, and a different part number. Pinions are interchangeable, but crown wheels are specific to one ratio. |
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| Author: | cooperess [ Tue Feb 27, 2018 9:31 am ] |
| Post subject: | Re: Crownwheel & Pinion |
If the 62T crown wheel has no identifying marks, how do you ID it as being an 18/62 crown wheel? |
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| Author: | drmini in aust [ Tue Feb 27, 2018 2:32 pm ] |
| Post subject: | Re: Crownwheel & Pinion |
Part number is stamped near the bolt holes. 22A 411. The one that goes with a 17T pinion is stamped 22G940. |
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| Author: | cooperess [ Tue Feb 27, 2018 2:35 pm ] |
| Post subject: | Re: Crownwheel & Pinion |
If there isn't a stamped number visible is there a physical way of identifying the crown wheel be it 22G940 or 22A411. |
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| Author: | cooperess [ Tue Feb 27, 2018 4:22 pm ] |
| Post subject: | Re: Crownwheel & Pinion |
I've worked it out guys. The 18/62 diameter is less than the 17/62 crown wheel. |
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| Author: | drmini in aust [ Tue Feb 27, 2018 6:23 pm ] |
| Post subject: | Re: Crownwheel & Pinion |
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| Author: | cooperess [ Sat Mar 03, 2018 9:25 am ] |
| Post subject: | Re: Crownwheel & Pinion |
Moving on. Which model BMC/Leyland front wheel drive cars used the 18/62 diff ratios? |
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| Author: | drmini in aust [ Sat Mar 03, 2018 9:37 am ] |
| Post subject: | Re: Crownwheel & Pinion |
In Australia- 1275 Cooper S, Clubman GT, and most Minis using the rod change box. |
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| Author: | Scoop [ Sat Mar 03, 2018 11:34 am ] |
| Post subject: | Re: Crownwheel & Pinion |
Very common, most of my collection of bits have the 3.44 ratios. |
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| Author: | cooperess [ Sat Mar 03, 2018 11:59 am ] |
| Post subject: | Re: Crownwheel & Pinion |
Which model BMC/Leyland front wheel drive cars came out of the factory using the 18/62 diff ratios? |
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| Author: | drmini in aust [ Sat Mar 03, 2018 5:21 pm ] |
| Post subject: | Re: Crownwheel & Pinion |
cooperess wrote: Which model BMC/Leyland front wheel drive cars came out of the factory using the 18/62 diff ratios? I answered your question above. Add any Clubman style Mini with a rodchange box including Mini S, Mini SS, 998LS, 1275LS. Were not used on Morris 1100S cars. |
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| Author: | ianscampbell [ Sat Mar 03, 2018 5:28 pm ] |
| Post subject: | Re: Crownwheel & Pinion |
Just moving on, - I noticed that the crownwheel I refitted this arvo was stamped 18/62 on two sides, so it could be obvious? |
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