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I've made a drawing of a K5 flywheel in case someone would like to machine their K3/K4 to spec.
As stated on the drawing a vernier caliper (0.05mm) was used to do all the measurements so good rule of thumb is to expect ±0.5mm accuracy. Crank position teeth and oil drain holes are all for illustration purpose only, I did not put them in the right position!
Let me know if any measurements should be added. I only added those which I believe to be necessary for lighten the earlier flywheel.
If someone more knowledgeable can confirm front and rear timing marks it would be great! I believe it makes sense they are positioned in relation to the feather key which are the only alignment to the crankshaft. Markings are engraved on the outer surface and will be lost in the process.
As stated on the drawing a vernier caliper (0.05mm) was used to do all the measurements so good rule of thumb is to expect ±0.5mm accuracy. Crank position teeth and oil drain holes are all for illustration purpose only, I did not put them in the right position!
Let me know if any measurements should be added. I only added those which I believe to be necessary for lighten the earlier flywheel.
If someone more knowledgeable can confirm front and rear timing marks it would be great! I believe it makes sense they are positioned in relation to the feather key which are the only alignment to the crankshaft. Markings are engraved on the outer surface and will be lost in the process.
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