Whats a normal water pressure reading at idle, cruising at3000 rpm, and wot?
I have a pair of 525sc's that run fine and have no cooling issues, just curious what's too low at different speeds.

Anybody?

Idle is only a pound or 2. Should be about 15 to 25 runnin on plane

Merc says a max of 35 psi.

BTW Anyone know what is included in the Merc 863208A3 Pressure Regulator Kit ???

OK, Thanks.

http://www.youtube.com/watch?v=vXB5R...hannel&list=UL
Livorsi Marine has a gauge to read water flow.
http://www.livorsi.com/catalog/water_flow.html

I added one to my setup, the p/n is the valve only.

http://www.mercruiserparts.com/Show_...t%2C+863208A+3