1989 mariner 150 waterpump kit

[bmccaffry]

Hello. I am replacing upper housing and impeller on my 1989 mariner magII 150hp. I noticed above the metal housing for the impeller and the top of the housing there was a space that looked like a grommet would go. The old housing got pretty Hot and I couldn't tell if there was a grommet in there or not. It was the only grommet that came in the kit. I did re assemble with that grommet in there and everything went together nicely. Had plenty of pressure in the muffs. I just want to verify this is ok and if that space was for the grommet or not. Thank you wry much.

 

[oldman570]

Re: 1989 mariner 150 waterpump kit

Here is a link for how the parts of the water pump should go together.
Mercury, Mercruiser, Force, etc. - GEAR HOUSING (DRIVE SHAFT) - 135/150 H.P (V-6)
There is a water sealing/slinger that should go over the driveshaft and down on the housing to keep water from climbing the driveshaft and into the splines where it hook to the power head. JMO
Oldman570

 

[bmccaffry]

Re: 1989 mariner 150 waterpump kit

Thank you very much. So it actually goes ontop and not in the Groove between the metal housing and the top of pump? I guess it would serve its purpose in either place?