Hi Jensen,
Two more images that would not attach.
regards
Dennis
Search found 8 matches
- Fri Sep 24, 2010 6:14 am
- Forum: Motors - 247cc | 305cc | 337cc | 350cc
- Topic: Differences - visually between CB72 and CB77 crankshafts
- Replies: 13
- Views: 9443
- Fri Sep 24, 2010 6:08 am
- Forum: Motors - 247cc | 305cc | 337cc | 350cc
- Topic: Differences - visually between CB72 and CB77 crankshafts
- Replies: 13
- Views: 9443
Crankshafts
Hi Jensen,
Find below pictures as requested with diamensions included. Also I managed to find my Nos 1961 crankshaft which is missing its outer bearings, all diamensions included. Certainly the balance holes in the CB72 I now see are smaller that the other crank.
regards
Dennis
Find below pictures as requested with diamensions included. Also I managed to find my Nos 1961 crankshaft which is missing its outer bearings, all diamensions included. Certainly the balance holes in the CB72 I now see are smaller that the other crank.
regards
Dennis
- Thu Sep 23, 2010 9:57 am
- Forum: Motors - 247cc | 305cc | 337cc | 350cc
- Topic: Differences - visually between CB72 and CB77 crankshafts
- Replies: 13
- Views: 9443
Crankshafts
Hi Jensen, Further checking shows that one hole is within the hollow crank end which is blind the other hole being in the oil fed part. Pictures attached. cheers Dennis Hi Dennis, First of all I have to say that I never saw a crank with two oil holes, but maybe I wasn't paying enough attention, can ...
- Thu Sep 16, 2010 1:44 am
- Forum: Motors - 247cc | 305cc | 337cc | 350cc
- Topic: Differences - visually between CB72 and CB77 crankshafts
- Replies: 13
- Views: 9443
Crankshafts
Hi Steve, Yes I did think it was governed by volume sales/production and the need for spares. Best to email me re pictures. Meanwhile I will take some! Although still involved with CBXs I no longer own any. Had a clear out some time back. cheers Dennis I my head (....I hear voices......!) the only l...
- Wed Sep 15, 2010 2:13 pm
- Forum: Motors - 247cc | 305cc | 337cc | 350cc
- Topic: Differences - visually between CB72 and CB77 crankshafts
- Replies: 13
- Views: 9443
Crankshafts
Hi Steve, Sorry I didn't spot the prices until I enlarged the scans. Ouch! Yes strange that the CB72 was so much more expensive. I cannot imagine a reason. Usually changes happened on both. I am currently building a 1962 CB72. I only bought it because it had a 61 engine but then I decided to restore...
- Wed Sep 15, 2010 2:06 pm
- Forum: Motors - 247cc | 305cc | 337cc | 350cc
- Topic: Differences - visually between CB72 and CB77 crankshafts
- Replies: 13
- Views: 9443
Cranshafts
Hi "G Man", Thank you for the offer. It would certainly be easier than the complete CB77 I have been offered to strip if I wish? Really I never took much notice of the crank before except to make sure the big ends were good and hopefully the small ends. Certainly it would be useful to see and measur...
- Wed Sep 15, 2010 1:59 pm
- Forum: Motors - 247cc | 305cc | 337cc | 350cc
- Topic: Differences - visually between CB72 and CB77 crankshafts
- Replies: 13
- Views: 9443
Different gudgeon pins' lengths, obviously; but I wonder: are they still 15mm dia (& 15.1mm for the -305 oversized pins). Hi Steve, Yes I still have the 1961. Jensen was in touch a while back and after a few false starts I supplied a large number of images for detail information. I thought I was pr...