Adjusting valves on 420

[Paul Buhler]

Hi: When I adjusted the valves on my 420, I set up cylinder #1 on DC. The manual says to then turn the engine to bottom, but doesn't say exactly where that is. I found an unmarked engraved line on the flywheel that I assumed was the location. Was I correct? (there is a third line labeled "Spark"(which I know has another timing purpose). The valves were closed on #2 cylinder when at this unmarked line, and #1 had one open and one closed, but I have no way of knowing where the pushrods were on the cam. The dozer started and runs better at idle, ok under load and doesn't back fire when going down hill. I re-adjusted the load jet and the engine runs smoother under load now too. Any comments would be appreciated. Thanks, Paul

Just had a Duh moment and the manual is in the shop - #1 cylinder is the one closest to the radiator, right?

[snoopy]

My M manual says that after adjusting the front cyc, crank engine exactly one-half revolution and adjust rear tappets. It sounds like that is what you did. I will have to look for the other mark you mentioned.

Bob

[Paul Buhler]

Thanks, Snoopy. Let me know what you see. Paul