I have an '83 evinrude 115hp that had to be pressed into service because the old mercs that came with my new(1966) boat were in bad shape.
So I fight with the corrosion to remove the lower unit to do the water pump, get it back together. Old impeller needed cut off. It was pumping fine but one side of the motor was getting too hot. I removed the two hoses from the heads to the thermostat cover and water did flow from the heads when running(I'm using muffs).
So I continue on to the thermostats. All three bolts required a torch(and I mean ocy acetylene) and kroil to get out, with one of them snapping and another requiring the bolt head to be melted off. This took a week on and off. I order all new parts due to corrosion, new cover, spacer, bolts, and the usual thermostats, bypass valves, springs and gaskets. Thermostats were basically solid corrosion. I get it all back together and no water is being pumped, I mean nothing from the pee hole and nothing from the heads with the tubes removed. I got water to flow with the garden hose from one head to the other ok. I pulled the thermostats, bypass valves, and spring just to see if that helped and still nothing. I'm guessing I need to remove the lower unit, again, and check the impeller then try to get water up the tube into the motor from the garden hose.
I did try to remove the lower cowl to get to the thermostat cover bolts better, didn't work. I also took some bolts out for the motor mounts in prep for lifting the powerhead. I quickly determined that was way more work than I wanted. I ended up drilling holes in the cowl to get to the bolts straight on.
So I'm pretty annoyed at this point. The twin mercs had to be removed, and this evinrude I got with another boat(that sat) needed more work than I wanted. I would like to get my "new" boat in the water. I feel like just putting my old trusty '67 20hp johnson on there if I didn't think it would be too slow for any fun, and I need a longshaft.
WHAT COULD CAUSE THIS MOTOR TO STOP PUMPING?
Thanks
So I fight with the corrosion to remove the lower unit to do the water pump, get it back together. Old impeller needed cut off. It was pumping fine but one side of the motor was getting too hot. I removed the two hoses from the heads to the thermostat cover and water did flow from the heads when running(I'm using muffs).
So I continue on to the thermostats. All three bolts required a torch(and I mean ocy acetylene) and kroil to get out, with one of them snapping and another requiring the bolt head to be melted off. This took a week on and off. I order all new parts due to corrosion, new cover, spacer, bolts, and the usual thermostats, bypass valves, springs and gaskets. Thermostats were basically solid corrosion. I get it all back together and no water is being pumped, I mean nothing from the pee hole and nothing from the heads with the tubes removed. I got water to flow with the garden hose from one head to the other ok. I pulled the thermostats, bypass valves, and spring just to see if that helped and still nothing. I'm guessing I need to remove the lower unit, again, and check the impeller then try to get water up the tube into the motor from the garden hose.
I did try to remove the lower cowl to get to the thermostat cover bolts better, didn't work. I also took some bolts out for the motor mounts in prep for lifting the powerhead. I quickly determined that was way more work than I wanted. I ended up drilling holes in the cowl to get to the bolts straight on.
So I'm pretty annoyed at this point. The twin mercs had to be removed, and this evinrude I got with another boat(that sat) needed more work than I wanted. I would like to get my "new" boat in the water. I feel like just putting my old trusty '67 20hp johnson on there if I didn't think it would be too slow for any fun, and I need a longshaft.
WHAT COULD CAUSE THIS MOTOR TO STOP PUMPING?
Thanks