Running on mufffs

Plainsman

Rear Admiral
Joined
Apr 2, 2006
Messages
4,062
I have never run my motor on muffs. Sould the hose be just slightley turned on so the water doesn't escape the muffs? Or should it be turned up some so it does a little?<br />TIA<br />Eric
 

gmb

Cadet
Joined
Apr 29, 2006
Messages
17
Re: Running on mufffs

turn the hose all the way on. You need full pressure
 

B.M.W II

Petty Officer 3rd Class
Joined
Mar 29, 2006
Messages
89
Re: Running on mufffs

Turn the hose all the way on so you don't run it hot. The water pump will suck up the water it needs.
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: Running on mufffs

all the way on, and prepare to get your feet wet. i put one of those little stop **** valves on the hose, next to the muff. this way you don't flood the yard. you can turn the water on and off right there.
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Re: Running on mufffs

I take issue with full house pressure when running on muffs. Think about it. Most home city water systems can run 60 - 80 PSI. Granted, the muffs generally let water escape but at what pressure? The internal shaft seals are not designed to withstand those pressures. Run enough water that you get a solid tell-tale stream and don't rev the engine higher than 2500 RPM and you'll be just fine. Most outboards idle at about 10 PSI water pressure so 60 - 80 PSI does you no good anyway.
 

rickdb1boat

Supreme Mariner
Joined
Jan 23, 2002
Messages
11,195
Re: Running on mufffs

Agreed. And by having the pressure real high, you risk the muffs pushing themselves off and thats never good....
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: Running on mufffs

sorry, i run mine all the way on, because i use irragation water off the well. much lower pressure than city water.
 

gungalunge

Petty Officer 2nd Class
Joined
Mar 5, 2006
Messages
126
Re: Running on mufffs

i was there yesterday . put the muffs on. i questioned will it work it did . let it run man give it the water , more is better
 
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