Water preasure ?

astro1

Cadet
Joined
Feb 7, 2006
Messages
18
Hi can anyone give me aproxamately what water preasure I should have on a 89 model evinrude 90 hp. vro. The prop sshaft is 4" below The pad. I have been told it showes low on these engines. Mine was supposed to of had a new water pump last fall. I put a gauge on it and it show's about 2 <br />lbs. at idle and goes up to 14 at 5000 rpm.it has a good stream comeing outat all times(more with higher rpms) and gauge is steady.<br />Thanks
 

ob

Admiral
Joined
Aug 16, 2002
Messages
6,992
Re: Water preasure ?

Sounds good to me barring the accuracy of the guage at lower speeds.What is the pressure range of the guage you have?Best to read in the upper half of its range at WOT.Specific water pressure is unique to different engines with respect to water jackets, T/stat,and cavity leakoff dynamics within a few psi.IMO,yours sound good.
 
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