Poco_Merc500-64
New member
My 1st attempt at saving a boat engine. I found lots of info over the web that helped me get to this point. 1964, Merc 500SL, 4 cyl, electric start only, no stator, no alternator, no rectifier (hence no charging system). Engine on a 1976 Trihull.
Recently ordered and still waiting for my manual. Gear control was damaged, ignition switch and wires were pushed inside housing - now fixed (I think). Was able to get starter to turn/crank over, but, no spark (on any plugs). Am about to remove Magneto and check points inside. Will look for something obvious... shorted coil?
Am I missing a step before I disassemble the Magneto assembly? Voltage reading somewhere? Impedance/resistance values?
Also, there is a red wire that is loose and hot (12/14 gauge). No idea where it goes. Don't know if this is the original harness that came with the 64 engine.
Thanks for any advice...
Recently ordered and still waiting for my manual. Gear control was damaged, ignition switch and wires were pushed inside housing - now fixed (I think). Was able to get starter to turn/crank over, but, no spark (on any plugs). Am about to remove Magneto and check points inside. Will look for something obvious... shorted coil?
Am I missing a step before I disassemble the Magneto assembly? Voltage reading somewhere? Impedance/resistance values?
Also, there is a red wire that is loose and hot (12/14 gauge). No idea where it goes. Don't know if this is the original harness that came with the 64 engine.
Thanks for any advice...