I thought the 1-3/8 bore primary gear was only ever used on early 850...
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| 997 cooper crank id ? https://www.ausmini.com/forums/viewtopic.php?f=2&t=49160 |
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| Author: | A-7 850 [ Mon Jan 12, 2009 9:56 am ] |
| Post subject: | 997 cooper crank id ? |
have a crank marked ..a298 on one end and on the other end just (4a) :o the stroke works out to be 3.2" small main brng size as per 998/1100. could this be a cooper 997 crank? machined down at the very end to take an early coil spring type flywheel being 1.3/8" taper ? :shock: yet the parralel size for the primery gear is the same as mini deluxe 998 .k 1100. 988 clubman :? has enyone seen this strange setup before ? some intrim idea from bmc to use up small taper flywheels i dunno ? :wink: |
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| Author: | wild_willy [ Mon Jan 12, 2009 12:04 pm ] |
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12A298 is Cooper 997 crank with deva bush primary gear. 12A 375 is earlier 997 crank with oil feed bush. |
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| Author: | drmini in aust [ Mon Jan 12, 2009 3:33 pm ] |
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I thought the 1-3/8 bore primary gear was only ever used on early 850...
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