power trim problem

thephoenix

Cadet
Joined
Jun 10, 2009
Messages
8
Hi guys, I have a late 70's early 80's merc 115 "tower of power" and I just replaced the brushes in the power trim unit to find that after doing this the motor turns but doesn't pump any fluid. Before the brushes went bad it was working fine. Any ideas on what might have happened?

Thanks
 

mcross371

Cadet
Joined
Oct 13, 2009
Messages
9
Re: power trim problem

Just wait till CHRIS checks the forum next he will have your answer I am sure.

CHRIS where are you?
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,555
Re: power trim problem

The end of the armature has a flat spot like a straight screwdriver. That must mate with the pump, to drive it. You might check it. I think the pump unit is free to move around inside the pump housing. You might check that out as well. Make sure it is lined up.
 
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