SOHC.co.uk Forums > CB750

CB750 bearing shells

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Bitsa (Ralph Wright - RIP):
Fair comment always thought that even in the 70s thats why I did not like brit bikes
Cheers
Bitsa

steff750:
 ;) ah the dark art of replacing shells ,
yes I've done my own for years , after my local shop guru failed miserably when I slapped a crank and engine cases on his counter,i never saw a bloke back pedal so fast , that was thirty years ago and he still thinks hes mister know it all,
   on the subject of Britt engineering,
 i also own a 1960 BSA a10 650 and its like riding a chariot in comparison ,apart from tightening nuts and bolts I would not like to delve to far into any Britt bike engine , while jap bikes are assembled by workers and not by engineers
I once rebuilt a CB750 engine in front of a guy who raced rocket threes and tridents he was amazed that I just torqued everything down, he said you would never get away with that with a Brit engine you would have to mic everything :o

Bryanj:
There is not enough difference on the sizes to make grinding work. I know that you can grind a glodwing crank and use some car shells but can't remember which

Trigger:
Bryan, i do not mean re-grind the crank. It is more of a polish on a crank grinding machine. If the black shell is showing up a little tight with the plastigauge. There are many car shells that can be used but, never found anything for any of the SOHC cranks.

AshimotoK0:
We do have air gauges here somewhere but I am going to use  Plastigage.  A micrometer will show up any major defects though.
Cheers Ash

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