I’ve got the cylinder liner out, I tried to drag it out with 2 hooks attached to a chain winch, lifted the engine a half inch of the ground and went to bed, still there in the morning.
So I made a puller, 2 lengths of 24 mm HT threaded rod, two cross bars made of double layers of 10 x 30 mm flat bar. The top one sitting on a frame, made of 25 mm RHS and 75 mm channel, sitting over the studs and the other bar under the base of the liner, each of these cross bars had 2 rod guides of 30mm RHS tube welded to them. The top bar was solid but the bottom was designed with a central M12 HT bolt backed off 1 turn from tight to allow a bit of movement of the 2 plates as each of the long HT rods was tightened in turn.
It took 2 of us pushing and pulling together on a 50 cm tube extension to the spanner on the top nuts, it was all we could do to get a quarter at a time.
Anyway it’s out, you were right about the crud that had accumulated over 67 years, caught it all in a layer of rags.
I’m getting back to it tomorrow, (work interferes with the business of real life), I’m going to use a red Plastiguage to check the bearing clearance.
Getting the new liner back in, not sure, I’m planning to chill it down with dry ice and warm the block with the oxy, then lubricate it with some INOX lanolin and spray push/whack it down using the old liner as a pusher, failing that I’ll run a length of 10 mm chain under the engine (it’s on a pallet) and then modify the tube guide and plates attaching the chain to the ends of the long 24 mm HT rods, with a length of 75 mm channel a leather pad, a stout hardwood block on the top of the liner and then screw it down.
L