Anyone have an idea how much water pressure I should have on my "99" 60 hp merc outboard. Just put a new impellor kit in it and it appears to be working fine. Would like to install a water pressure guage but what psi scale do I need? 0-15psi,0-30psi. Any answer would be appreciated.
Thanks Dilligaf for the reply. Think I'll put a 0-30psi gauge on it. At least the needle wouldn't get pegged. I bought a manual and couldn't find anywhere what kind of water pressure the pump might develope. Thanks again.
My 50hp puts out about 7-8 PSI at WOT. I think 12-15 may be a bit optimistic for a 60!!!My manual says 4-10 at various speeds. The big bangers go close to 20..
Thanks Merc805 for your reply. I think I'll remove a vent/drain plug in the waterjacket over cylinder head and place a temporary pressure gauge in it to see what water pressure it has before I buy one to put in dash. Thanks again.
12 to 15 psi should at WOT should give you ample amounts of cooling water. I would get the 0 to 15 guage. It will be easier to read. You most likely will not peg the needle. Besides, anything over 15 is gravy on the cake. The 0-15 guage will better show your pressure drop due to impellar wear/fin break/blockage.
Thanks Bushcat for your response. I'll try my temporary gauge first. I definetly don't want a gauge that will read on the low end of it's scale. You're right about impeller wear,ect... Hopefully the weather will be decent here to try it out this weekend.
My 50hp puts out about 7-8 PSI at WOT. I think 12-15 may be a bit optimistic for a 60!!!My manual says 4-10 at various speeds. The big bangers go close to 20..
I just bought a SunTracker 21Pontoon w/ 2005 Merc/Tracker 'BigFoot' 60 on it. Went for our first run on the lake yesterday and at WOT (5000 RPM) the Water pressure is reading 16 PSI