I sourced a series 2A 2.25 engine to replace my worn series 3 2.25. I swapped the "clutch housing" from the series 3 engine to the 2A engine (bolt holes all match up). After it was all said and done, the flywheel seems to interfere with the rear of the engine. I have tried the flywheel from the 2A (look identical) and still no joy.

I'm going to break out the micrometer - but thought I might as well ask if this is a lost cause. I would rather avoid using the old clutch actuator mechanism from the 2A, as I will have to buy a new clutch and pressure plate etc... never thought this would be an issue ... yes should have done some research.

So, essentially I am trying to retain the clutch housing from my series 3 engine on a 2A engine and it does not appear to work. I'm guessing the crankshaft has different specs...