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make sure you paint Marvel Mystery Oil on the new water pump impeller. that will soak into the rubber and keep it soft for years. will also reduce the rubber of getting memory. it will help to protect and save your impeller from a dry start. i do that to all water pump kits i install. torn one open after 10 yrs and still looked new and no memory from sitting. i have never had one come back with water pump issues.
Fellas I must ask. I've replaced a lot of waterpumps in my life and yes its a pretty easy job. But what is the deal with the o-ring at the top of the shaft the goes into the power head? And do you need it? My lower unit came of with out one. I did the coat hanger trick to try and get it out with no luck.
opps i said sn-wi have seen alot of guys here at the boat ramp when they get there boats out of the water the rev the living **** out of there motors i think there trying to get all the salt water out of there motor but at the same time i think there heating that rubber impellor to the point it fuses to the housing and next ime they go out it ends up breaking i have never had to replace one on all the outboards i have had and when i no im not going to use my boat for a while i run the engine in a tank add some truck wash and watch all the white snow come out then i drian the tub fill it with fresh water and add 2 litres of wd 40 let if run for a while and then im happy![]()
yeah that o-ring at the top is a good thing, i've had one stuck too. had to cut the drive shaft then remove the power head and heat then pry the shaft out of the power head...