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Old 10-23-2021, 05:03 PM   #9
SteveK
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City: Gulf Islands, BC Canada
Vessel Name: Sea Sanctuary
Vessel Model: Bayliner 4588
Join Date: Jul 2019
Posts: 5,017
Quote:
Originally Posted by C lectric View Post
I disagree about the cam plate.
The photo is not great but it looks like several of the fingers of the cam plate are worn to the point of being sharp. THey will begin to cut the impeller reducing its pumping ability.

In addition the wear will have reduced the thickness of the cam plate itself which means the pump cannot move as much water as intended.
Get a new cam plate.
I suggest that the back wear plate also be closely examined for excessive wear as it to will reduce water pumping ability if worn to far.

As far as the replacement pump from A.D. that has proven from all accounts to be a good move. More reliable drive and by the time you get into cam plate replacement and maybe the rear wear plate you may have run the cost up enough to help make the Johnson a whole lot less of a shock.
where are you seeing sharp edges? would there not be cut marks on the impeller blades from the fingers?
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SteveK
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