Quote:
Originally Posted by Excaliber
This picture might help with the 90 degree vs 180 degree crank throw positions. Note the difference in crank offset weights as well. One fires every 90 degree's of rotation. The other, every 180 degree's.
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Sorry Ernie, both those cranks fire @ 180° intervals, the cross plane design just changes the sequence in which the cylinders fire- larger pic in an nline 4cyl would be 1342 or 1243 while smaller pic would be 1423 If my eyes are not playing tricks on me!
OOP's yes they are, the second one is an odd fire or possibly a 'Big Bang' crank where they fire two cyls at the same time... Ill go have another coffee right now!
