mercury flywheel

BRYAN LAECHELT

Recruit
Joined
Sep 4, 2010
Messages
4
i have a 20hp mercury flywheel..1969..it unbolts from the center hub with I believe 8 bolts...unfortunately wasn't marked when separated...how does this line bck up????
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
27,036
Re: mercury flywheel

Gee, real simple. Put the outer flywheel on with two finger tight bolts and remove spark plugs. Stick a screwdriver into the top cylinder and turn flywheel until top cylinder is as close to Top Dead Center and you can make it. Now remove the 5/16" flywheel bolts and turn outer flywheel only until timing marks nearly align. Install 8 bolts with blue locktight. You only need to be within 45* to chose the correct position.
 
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