803 Ser II Crankshaft sizes

Post by **dawpooldad** » Sun Aug 31, 2003 4:37 pm

Erm, can anyone tell me the maximum regrind size for the above crank. I've been offered a reground one that is -60 thou, but the manual only lists -40 thou as a second regrind!
Would 60 thou be a problem?
dawpooldad.

Post by **Cam** » Sun Aug 31, 2003 4:39 pm

60 thou would not be a probem if you can get 60 thou oversize shells to suit. The largest I have ever seen is 40 thou shells.

Post by **dawpooldad** » Mon Sep 01, 2003 9:51 pm

Thanks Cam,

60 thou shells are available but what I'm more concerned about is the strength of the crank after such a regrind. Has anyone tried this?
Dawpooldad

Post by **Cam** » Mon Sep 01, 2003 10:09 pm

Yes, I see what you mean, as the 803 cranks were always supposed to be quite weak anyway.

But an extra 10 thou shouldn't weaken it too badly anyway otherwise the shells would not be available if no-one wanted to do it. All the same, it would be nice to hear from someone who has fitted a 60 thou undersize crank

Post by **Kevin** » Tue Sep 02, 2003 1:40 am

You could try giving a call to the guy who is supposed to be a side valve specialist if any one should know he would
Dave Parrish
83 Freemans Lane
Hayes, Middlesex, UB3 2NT
020 8573 7008