30-12-2023, 10:11 PM
Today I installed my Hadley Crank into my sand cast Nippy crankcase only to find that it is sitting too far forwards.
It is because I am using non standard front bearings which do not have an offset between the inner and outer race like the Angular contact bearings which have about 30 Thou offset.
I have taken it all apart again !!
I have taken 10 Thou from the front lip with a flycutter to clean it up a bit. ( As its a sand cast case the front lip is very thick )
I have just ordered a few shims to move the crank back, they will go between the front bearing and the crank shoulder.
So its back to cleaning everthing up again and putting it all back together once the shims arrive.
It is because I am using non standard front bearings which do not have an offset between the inner and outer race like the Angular contact bearings which have about 30 Thou offset.
I have taken it all apart again !!
I have taken 10 Thou from the front lip with a flycutter to clean it up a bit. ( As its a sand cast case the front lip is very thick )
I have just ordered a few shims to move the crank back, they will go between the front bearing and the crank shoulder.
So its back to cleaning everthing up again and putting it all back together once the shims arrive.