I wonder if i have an older chassis with different mounting holes. I got the truck used and it had the .15 engine. I believe the spur gear is correct because it meshed correctly when the .15 was in there.
When i looked closely at your picture, i see that the flywheel is mounted closest to the crankcase front bearing....on my engine there is this spacer (as seen in picture) that separates the crankcase from the back of the flywheel. is this spacer necessary? having it on leaves very little space for the clutch pilotnut to grab the crankshaft. i am about to try to take it off and see if the holes line up correctly after that.
thanx

edit: it doesnt work without the spacer between the crankcase and the flywheel. If it is taken out, then the pilot nut cannot screw far enough down on the crankshaft to put the clutch shoes on properly.
How can i tell if the spur gear is possibly in the wrong position, my slipper pad is to the rear of the spur gear. is that the right side.