13-10-2020, 10:46 PM
Hi Ruairidh
You may remember when I first started my rebuilt engine with a 1 1/8th new steel crank I discovered it shaved very thin slices of ally off that Camshaft housing. I think this only happened on higher revs? Due to Whipping? I cleaned out the sump and the innards of the crankcase plus used a Dremel to relieve the camshaft casting to give a 25th clearance.
Perhaps if alloy shavings got into a bearing this might Have damaged it?
I worry that at 25th might not be enough?
I’ve not run the engine for a bit due to house drain issues and hope to get it going again soon.
All the best
Bill G
You may remember when I first started my rebuilt engine with a 1 1/8th new steel crank I discovered it shaved very thin slices of ally off that Camshaft housing. I think this only happened on higher revs? Due to Whipping? I cleaned out the sump and the innards of the crankcase plus used a Dremel to relieve the camshaft casting to give a 25th clearance.
Perhaps if alloy shavings got into a bearing this might Have damaged it?
I worry that at 25th might not be enough?
I’ve not run the engine for a bit due to house drain issues and hope to get it going again soon.
All the best
Bill G
Based near the Scottish Border,