'68 55hp 3cyl new water pump, low pressure?

mprtech

Cadet
Joined
May 29, 2008
Messages
11
Hey guys I'm hoping someone has some experience with this old girl. First off this motor runs awesome. I replaced the WP and added a gauge, there was a pipe plug right next to my thermostat so I added the gauge fitting there.

I replaced the complete pump kit. I notice there is no pressure relief valve anywhere as far as I can tell.

I took the boat out today and at idle I get 5 psi. At WOT I'm around 10-12.

I did not overheat and like I said the motor ran out great. I'm just a little paranoid by the low pressure. Any advice would be greatly appreciated.
 

F_R

Supreme Mariner
Joined
Jul 7, 2006
Messages
28,195
Re: '68 55hp 3cyl new water pump, low pressure?

Since they didn't come with gauges, I don't know what to expect but my gut feeling says that it is fine.
 
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