24-06-2021, 10:17 PM
I would say you have quite a museum piece there.
I take it all the numbers on the engine match.
The bores and pistons look as if they could still be in quite good condition.
I be tempted to say if you are not putting a Phoenix crank in? And keeping it original. I'd clean it and keep the pistons and original bore.
If there is no wear lip at the top of the bore, and no scoring in the bores. You may find the sideways movement in the piston is because original pistons were expansion pistons, so they needed a larger tolerance.
Were as our modern slipper pistons are zero expansion. So the tolerances are far less.
Tony.
I take it all the numbers on the engine match.
The bores and pistons look as if they could still be in quite good condition.
I be tempted to say if you are not putting a Phoenix crank in? And keeping it original. I'd clean it and keep the pistons and original bore.
If there is no wear lip at the top of the bore, and no scoring in the bores. You may find the sideways movement in the piston is because original pistons were expansion pistons, so they needed a larger tolerance.
Were as our modern slipper pistons are zero expansion. So the tolerances are far less.
Tony.