Well, just enough to see if it fits. I made the Front Housing and fitted the crankshaft and conrods together in the crank case. 'Tis at this point I've discovered I need to remove a very small amount of material from the bottom of the sleeves because they foul on the crankshaft. Oh! well I can't see it making any difference to performance other than it just makes the engine that little bit lighter. Every little helps.
Here's some pix:-
Front Housing in the lathe for final machining
Note how its bolted to the mandrell
The rear end view
Assembled (temporarily)
Next will be the gudgeon pins and the PTFE end pads to prevent the gudgeon pins from scoring the bores. Then I can get the pistons moving.
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