Crankshaft

[oranje]

Does anyone knows if ma10(not et) or ma12 crankshaft is the same as the ma09?

 

[frank]

ma12 will be a longer throw oranje

 

[oranje]

fair enough. ma10?

 

[Robodestro]

they should all fit, ma09,ma10 and ma12 use the same block, it will just be the bore and stroke that are different, probably not even the bore just the stroke

 

[h701micra]

Bore is cylinder width
Short answer is MA10 crank is the same
MA12 cranks has ~50mm longer throw
Reason MA09 is a smaller capacity is it has a 2mm smaller bore and different piston shape iirc

 

[oranje]

thankyou for your replies. I will use a second one i found in my spare parts. Hope in one to two weeks can upload photos of the progress. Thanks again

 

[Duncan]

so that means the remaining questions is...does anyone know if the ma12 crank fits in the ma09 block without fouling stroked super turbo, would give about 1.1l with the ST cylinders

 

[h701micra]

May need the shorter ma12 rods tho