rexcaunt
Number of posts : 79
Age : 77
Localisation : SUNNY BARWELL
Registration date : 2014-07-31
 | Subject: .....BSA WORKS DRAWINGS OF 3 AND 4 SPEEED CRANKCASES........  Thu Apr 16, 2015 8:37 pm | |
| Hi All, For our ongoing Bantam development can anyone supply factory drawings or blueprints of 3 and 4 speed crankcases? It would be much appreciated!...................  Cheers! Rex | |
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John Colter
Number of posts : 128
Age : 86
Localisation : West Midlands
Registration date : 2014-10-23
| | Subject: Re: .....BSA WORKS DRAWINGS OF 3 AND 4 SPEEED CRANKCASES........ Thu Apr 23, 2015 5:33 am | |
| I found this request from Rex in the "unanswered posts" section. I am posting a response, simply to keep it current, in the hope that someone may be able to help. I have no experience of the 175cc, or the four speed versions of the Bantam. I would imagine the crankcases were very similar throughout the whole of the Bantam's production run, any differences being to do with the change from three to four gears; possibly different main bearing/seal sizes as the motors were made more powerful; cylinder stud spacing/crankcase mouth enlargements; detail differences in the lubrication of the main bearings? Moving the points over to the primary chain case may have necessitated changes to the crankcases, too. Have I missed anything  | |
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