Motor mercury 50 HP 2 cycle OT637401 with power tilt and trim
I am removing lower unit to replace the water pump impeller. Repair manual says to lossen the jam nut above the shift coupler. I can not get two wrenches on the jam nut and coupler to loosen. What is jam nut size not 3/8 or 7/16??
I am removing lower unit to replace the water pump impeller. Repair manual says to lossen the jam nut above the shift coupler. I can not get two wrenches on the jam nut and coupler to loosen. What is jam nut size not 3/8 or 7/16??
