2006 Mercruiser 8.1 HorizonS: what should water pressure be?

[outobie]

Hello I'm just wondering; does anyone know what the correct water pressure range is for my motors.

I've recently replaced (with all OEM) Manifolds, water pumps, raw water hoses, thermostat and heat exchangers on my 2006 8.1 with 800 hours on the upper chesapeake.

port runs at 13.5 PSI and STBD runs ay 10.5 PSI at 3400 rpms...is this the proper pressure I should be seeing?

 

[Bt Doctur]

if you have the correct engine temps and do your regular maintence ignore the water pressure

 

[Docksidemarineservices]

Is there an Echo in here?


[h=2]

Re: 2006 Mercruiser 8.1 Horizon S MIE Single point drain question...[/h]

Run it. Water pressure Numbers are fine. As for the fuel usage, If it runs good leave it.​

Chris
Dockside Marine Services
Jersey Shore.
Mercruiser/Mercury Certified
Let the insanity begin.
​

 

[outobie]

thanks guys, sorry for the double post...I started a new thread but then thought it would be better to post in my old thread with the additional info