14-08-2020, 09:45 PM
A quick update - the bearing is out, without any damage to anything remarkably. It was tight in both the carrier and to the crank.
A long bit of 10mm round brass and a hot air gun heating the crankcase evenly to 65 deg C ish, and it drifted out very easily.
We then up ended the engine and supported the crank on a block of wood, then applied the drift to the inner part of the race and tapped that off gently - there are two notches in the crank that seem to be just for this purpose.
There's no clear deterioration to any of the visible surfaces of the roller or the outer - but there's clear air, just, between the rollers and the outer.
So I'll hunt out a replacement and hopefully find a lip seal too.
On to the next issue - the water branch studs..... but I'll start that in another post....
Thanks again to everyone!
A long bit of 10mm round brass and a hot air gun heating the crankcase evenly to 65 deg C ish, and it drifted out very easily.
We then up ended the engine and supported the crank on a block of wood, then applied the drift to the inner part of the race and tapped that off gently - there are two notches in the crank that seem to be just for this purpose.
There's no clear deterioration to any of the visible surfaces of the roller or the outer - but there's clear air, just, between the rollers and the outer.
So I'll hunt out a replacement and hopefully find a lip seal too.
On to the next issue - the water branch studs..... but I'll start that in another post....
Thanks again to everyone!