pee stream

HOG Ranger · 02-10-07, 12:00 PM

I have a 2001 Merc 125 HP and the tell tale stream does not always have the same pressure exiting the motor. It has never over-heated or anything like that but it seems strange that the volume would change. It has done this since day 1 and the dealer said it is normal with Mercs. It always has flow but sometimes much stronger than other times regardless of RPM's.

zooker · 02-10-07, 12:08 PM

at an idle my yamaha thows out a stready stream not much pressure. but when i have it hooked up to the hose at 1/2 throttle there is ALOT of pressure coming out of the pee stream.. if you are saying you have in consiant stream pressure. this is a tell tale sign something aint right in the water pump..

zooker

HOG Ranger · 02-10-07, 05:29 PM

I always have pressure but not always the same volume of flow if that makes sense?

1FASTLASER · 02-10-07, 10:16 PM

Ok first let get rid of the myth bought being normal with Mercs. I aint never heard of such a thing. When at idle you should have enough pressure that you are actually "denting the water" from the pee stream. When running as rom's increases so should your pressure up to a point. There are at times when the pressure will lessen do to water turbulence but as long as you see a good steady stream you are within described pressure's. On the bigger motors that have trim units and are set up to run I STRONGLY advise the installation of a water gauge. A few seconds with little or no water pressure can be or cause severe engine damage. With the cost of a powerhead today $50 for the gauge and 2 hours at the most for the install thats pretty cheap insurance. Second I want to point out that you need to change the impellar at LEAST every 2 years. I do mine every year. Again the $40 or so for a impellar and a couple hours is cheap insurance. If you havent had yours changed since new do yourself a favor and change it. Its very easy and straight forward to do.

HOG Ranger · 02-11-07, 09:13 AM

Thanks Laser. The impellar was installed new last year and made no change to the flow. Maybe I am over analyzing it because the motor always has a nice stream, just stronger at times.

1FASTLASER · 02-11-07, 09:16 AM

No problem buddy. In all actuality the only time that just looking or feeling the difference in the stream that would be evident is when the T-stats where opening or closing and it would be for just a brief moment due to the change in water flow. From what you are posting it sounds like you can go ahead and let her fly.

Christopherkeene9 · 02-14-07, 05:08 PM

Do you possibly have sand up there? Its very common to have sand in your pee stream down here. Just take some 150lb. mono and shove her up there till abunch of sand/shells come out and she pees stronger. And dang you guys are lucky only having to change impellers on one motor 1-2yrs!

HOG Ranger · 02-14-07, 07:17 PM

It could just be a small blockage at the exit of the pee stream and that is why it is causing a different stream. I change my impellar every 2 years and so far so good.

We don't get much debris here in the midwest as most of the lakes are fairly clear. If you run the rivers you can get just about anything.

commanche · 02-17-07, 03:03 PM

my mercury 90 hp did that also,weak stream..i found that a spider built nest in the hole while boat was stored..

i never changed a impreller, never knew you had too.. a

02-10-07, 12:00 PM	#1
HOG Ranger BassFishin.Com Active Member Join Date: May 2006 Location: Rockford, IL Posts: 306	pee stream I have a 2001 Merc 125 HP and the tell tale stream does not always have the same pressure exiting the motor. It has never over-heated or anything like that but it seems strange that the volume would change. It has done this since day 1 and the dealer said it is normal with Mercs. It always has flow but sometimes much stronger than other times regardless of RPM's.

02-10-07, 12:08 PM	#2
zooker BassFishin.Com Premier Elite Join Date: Jan 2004 Location: denton nc Posts: 13,441	at an idle my yamaha thows out a stready stream not much pressure. but when i have it hooked up to the hose at 1/2 throttle there is ALOT of pressure coming out of the pee stream.. if you are saying you have in consiant stream pressure. this is a tell tale sign something aint right in the water pump.. zooker __________________ the godfather.. aml in remission since 7-20-09

02-10-07, 10:16 PM	#4
1FASTLASER BassFishin.Com Super Veteran Join Date: Aug 2005 Location: crossett,arkansas Posts: 2,777	Ok first let get rid of the myth bought being normal with Mercs. I aint never heard of such a thing. When at idle you should have enough pressure that you are actually "denting the water" from the pee stream. When running as rom's increases so should your pressure up to a point. There are at times when the pressure will lessen do to water turbulence but as long as you see a good steady stream you are within described pressure's. On the bigger motors that have trim units and are set up to run I STRONGLY advise the installation of a water gauge. A few seconds with little or no water pressure can be or cause severe engine damage. With the cost of a powerhead today $50 for the gauge and 2 hours at the most for the install thats pretty cheap insurance. Second I want to point out that you need to change the impellar at LEAST every 2 years. I do mine every year. Again the $40 or so for a impellar and a couple hours is cheap insurance. If you havent had yours changed since new do yourself a favor and change it. Its very easy and straight forward to do. __________________ Laser's rule with Merc's doing the pushing..........KEEP THE WETSIDE DOWN AND THE DRY SIDE UP!!!!!!

02-11-07, 09:16 AM	#6
1FASTLASER BassFishin.Com Super Veteran Join Date: Aug 2005 Location: crossett,arkansas Posts: 2,777	No problem buddy. In all actuality the only time that just looking or feeling the difference in the stream that would be evident is when the T-stats where opening or closing and it would be for just a brief moment due to the change in water flow. From what you are posting it sounds like you can go ahead and let her fly. __________________ Laser's rule with Merc's doing the pushing..........KEEP THE WETSIDE DOWN AND THE DRY SIDE UP!!!!!!

02-10-07, 05:29 PM	#3
HOG Ranger BassFishin.Com Active Member Join Date: May 2006 Location: Rockford, IL Posts: 306	I always have pressure but not always the same volume of flow if that makes sense?

02-11-07, 09:13 AM	#5
HOG Ranger BassFishin.Com Active Member Join Date: May 2006 Location: Rockford, IL Posts: 306	Thanks Laser. The impellar was installed new last year and made no change to the flow. Maybe I am over analyzing it because the motor always has a nice stream, just stronger at times.

02-14-07, 05:08 PM	#7
Christopherkeene9 BassFishin.Com Super Veteran Join Date: Nov 2005 Location: Oviedo, Fla Posts: 2,270	Do you possibly have sand up there? Its very common to have sand in your pee stream down here. Just take some 150lb. mono and shove her up there till abunch of sand/shells come out and she pees stronger. And dang you guys are lucky only having to change impellers on one motor 1-2yrs!

02-14-07, 07:17 PM	#8
HOG Ranger BassFishin.Com Active Member Join Date: May 2006 Location: Rockford, IL Posts: 306	It could just be a small blockage at the exit of the pee stream and that is why it is causing a different stream. I change my impellar every 2 years and so far so good. We don't get much debris here in the midwest as most of the lakes are fairly clear. If you run the rivers you can get just about anything.

02-17-07, 03:03 PM	#9
commanche BassFishin.Com Active Member Join Date: Jan 2007 Posts: 113	my mercury 90 hp did that also,weak stream..i found that a spider built nest in the hole while boat was stored.. i never changed a impreller, never knew you had too.. a

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