Currently in the process of transplanting a 12 hp from a Murray into a different chassis.
Everything fits fine (of course it does its the same engine config) bar the drive pulleys. Turns out the pulleys on the incoming engine are different, both in diameter and distance from each other.
After putting the engines next to each other I could see the incoming Murray engine is 3ish cm taller than the old one. I'm hoping this is because of the difference in pulleys and not a longer crankshaft.
Before I go hammer and tong on swapping the old pulleys onto the new crankshaft, I would like to know if the crankshafts are going to be the same length. Otherwise when I do the swap I'll just be confronted with the same issue.
Thoughts appreciated.
