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Merc 40 HP Serial #5991338

B

Bruce Rinell

Guest
"I have a problem positioning

"I have a problem positioning the flywheel. I pulled it off to fix a Keyway. The problem is I didnt mark the flywheel hub to the flywheel. I cannot find anything on the two parts to orient them to each other I have 8 choices. I started by setting TDC on number 1 Cyl. This sets the keyway slot in the crankshaft pointing to center of case pointing to #1 cyl. This part looks correct to me. The problem is when I try to position the flywheel to the timing mark on the side of the case. The bolt pattern doesnt allow for me to line up TDC on the flywheel with TDC on the crank. Both these parts were on this engine and running properly before I screwed up. Any one know how to line up the flywheel? I dont have a distributor, it is thunderbolt Ignition. There must be another refrence point I am Missing? Thanks for your help"
 
"With no. 1 piston at TDC, the

"With no. 1 piston at TDC, the timing mark should line up with the .460 mark. At least that is what it is for slightly bigger motors. I do not have a manual to cover yours."
 
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