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Discussion Starter #1
Hi,

I'm trying to make my revision for an engines exam more interesting by applying the questions to my 2 litre twinspark.

Currently on the topic of "balancing"... can anyone tell me the spacing between the piston centres in mm? I've guessed 90mm but I'd like the exact number :)

Cheers

Mike
 

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Discussion Starter #3 (Edited)
OK well I did the calcuation anyway but I had to guess 3 values... Here it is if anyone is interested!

I don't think the con rod is that long, actually... But I don't know

Correction: the primary forces/moments are once per crank rotation and the secondary forces/moments are twice per crank rotation
 

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