Blown water pump impella?

[imported_beck]

Tried to run motor on muffs. When I started it I had the throttle too high and motor reved real high and I then shut it off, water was running. I tried to start it again and I did not pee. Could I have ruined it? Or perhaps it was going out anyway, not sure how old it was.

Another thing does it change pretty much the same way a 48 spl changes? I have a oem manual for the '89 48 hp but didn't get one for my '81 70hp yet.

Thanks
Beck

 

[WillyBWright]

Re: Blown water pump impella?

That didn't harm the pump. It comes apart much like the 48.

 

[JUSTINTIME]

Re: Blown water pump impella?

try putting it in a container, the muffs sometimes do not get a good seal around the intake

 

[imported_beck]

Re: Blown water pump impella?

Thanks for the reply,

Few other ?'s

When changing the pump is there any sealent involved that I should get ahead of time? Lube for the impella, silicone spray?
Should I neversieze the ss bolts when putting it together or perhaps some locktight?

Also engine is a '81 70hp Johnson which sparkplug and at what gap?

Thanks again,
Beck

 

[JUSTINTIME]

Re: Blown water pump impella?

when u put the impeller in make sure u turn the drive shaft clockwise

 

[imported_beck]

Re: Blown water pump impella?

Thanks for the info.

 

[WillyBWright]

Re: Blown water pump impella?

I lube it with most any kind of liquid soap. Blue loctite on the screws is a good idea including the ones that hold the gearcase on. I believe that uses L77JC4 gapped at .040. QL77JC4 if you have any electronics to reduce noise.

 

[imported_beck]

Re: Blown water pump impella?

Thank again...