Martin Pump Rotor Questions

[drifter]

I am bringing back a Martin 60 and have a couple of questions about the water pump. I am not quite ready to start it up but getting close.
1) Does the Martin 60 have a telltale? Is there a way to know the pump is correctly functioning?
2) How do you know when the rotor is needing replacement? I remember (a long time ago) reading a little write up about the rotor type pumps and how to know when replacement is necessary.
May have been Frank that wrote the piece.
Thanks again for the help,
Drifter

[frankr]

1. If memory serves, there should be a water spray out of the exhaust relief holes, about half way down. If it sprays at slow idle, it probably is ok. Rotor should be a close fit on the eccentric cam and be a close fit depth-wise in the housing. There should be a gap between one side of rotor and the housing. The gap moves around as the rotor wobbles through it’s rotation..

Maybe this will help—

Martin60_SvcAndPartsList

[drifter]

Thank you, Frank.
I should have noticed these two holes sooner. It appears these are exhaust relief as well as telltale for water flow.
Thanks again,
Drifter

[drifter]

Can’t seem to post a photo

• This reply was modified 3 years, 8 months ago by drifter.
• This reply was modified 3 years, 8 months ago by drifter.
• This reply was modified 3 years, 8 months ago by drifter.

[frankr]

Yeah, those look familiar.

[Buccaneer]

Here’s my Martin 60 running in a barrel.
I “say” it’s pumping water, but if it is, it
must be right at the water line in the barrel.

https://youtu.be/lnetde3C2G0

Prepare to be boarded!

[rudderless]

Don’t know if these pump wobblers are available these days but I made one using a hockey puck, hole saw and band saw. Worked very well if ya can’t find one…

[Buccaneer]

rudderless wrote:

Don’t know if these pump wobblers are available these days but I made one using a hockey puck, hole saw and band saw. Worked very well if ya can’t find one…

The wobblers are still available as far as I know, but I love your “work around”
with the hockey puck!

Prepare to be boarded!

[Matthew Pieklik]

https://martinoutboards.com

[Mumbles]

rudderless wrote:

Don’t know if these pump wobblers are available these days but I made one using a hockey puck, hole saw and band saw. Worked very well if ya can’t find one…

And all this time I’ve been using hockey pucks for body lifts!

[Author]

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