Sharing fresh water intake from one engine to a second engine

QBhoy

Fleet Admiral
Joined
Mar 10, 2016
Messages
8,342
Go OEM all the way. I’ve got 1200 hours on an original impeller. Although that’s only over 8 years and 1180 of the hours were in the last 3 years. I also have a water pressure readout too though. An extreme example and due a change for sure…but to show a point.
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
49,540
You can't flow enough water with one alpha pump to cool two motors. PERIOD

The pump curve is barely able to keep up with one motor

Service the pumps regularly

In an emergency, limp back on one motor
 

JASinIL2006

Vice Admiral
Joined
Feb 10, 2012
Messages
5,673
Gen one or two?i just changed an oem out of my gen two after 6 years looked essentially new..

I looked at those impellers after Bondo recommended them some time back. The seemed pretty promising.

At the time, it looked like they only made them for Gen 1s. I haven't gone back to see if they make them for Gen 2s now.
 

Scott06

Admiral
Joined
Apr 20, 2014
Messages
6,428
Go OEM all the way. I’ve got 1200 hours on an original impeller. Although that’s only over 8 years and 1180 of the hours were in the last 3 years. I also have a water pressure readout too though. An extreme example and due a change for sure…but to show a point.
Gen 2 drive or gen one? One big improvement on gen 2 impeller vs gen one
 
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