no water peeing 1998 225 promax

[nightrider21]

I bought a '05 pulsare w/'98 225 promax last fall and I didn't run it because it was already winterized. So I start it up this spring and it's not peeing out the telltale, so first assumption is impellar, I pull the sportmaster unit off and then find that the water passage after the impellar to the water tube is plugged with sand, so I clean that out and take the thermostats out and and put my garden hose on the pipe up to the powerhead to flush out any more sand. The impellar looked fine so I put it all back together, hook up the garden hose and start the motor and it's still not peeing water. My question is with the garden hose hooked up, and turned on should the motor fill up and pee out the hole even with the motor not running. I'm thinking of taking the poppit valve out and see what that looks like. If that is held open add idle from the sand, would it affect the water peeing pressure.

mark

 

[JW]

Nothing will come out the pee hole until the T-stat opens up. My '95 Promax wouldn't pee for about 2 1/2 minutes on the hose, it always scared me a little.
My little 7 1/2 horse merc pees as soon as you hook up the hose (no T-stats).
So what I did with the Promax (and even my little 2.0 135), was pull the cowl, turn on the hose, start the motor, then keep both hands on the heads. A head that's at proper operating temp will be OK to touch for a couple-few seconds before it feels uncomfortably hot. Should not be burning hot. Or use an infra-red heat gun.

Another thing you can try is blowing some air backwards up the pee-hole. I've cleared some gunk out that way too.

All that being said, if you had sand down there plugging everything up, I'd go thru that motor very carefully. How could it have been properly winterized if the water system was plugged?

 

[gchildre]

Sand could have helped...

If there was little water coming up from the impeller then it may have not had much water in the heads when it was winterized, besides how cold could it really get in Minnesota - just kidding, I even winterize my boat in Georgia, it does get below freezing for a week or so at a time. As JW suggested I would go through the entire water system flushing it and looking for any freeze damage. Also, since you took the time to drop the lower unit I would always have replaced the impeller - when you go through all that work you are only $45 from replacing it anyway. There is no worse thing than to get out the lake and find an overheating problem from a relatively small dollar preventative part. I have already ordered my impeller kit for this season, it is a drag to replace but I would rather not kick myself later, my trips to the lake are much more work than the time to replace the impeller at home in the garage. I have been led to believe that the time a rubber impeller has been "bent" inside the housing is more of a factor than the actual "spinning hours" of use on an impeller.

 

[Reed]

Another thing you can try is blowing some air backwards up the pee-hole. I've cleared some gunk out that way too. ( I wanted to add to this lil senctence, 1. check the pee-hole for dirt -mud dobber wasps love to make that their home. 2 replace your thermastats in your heads 3. like was stated before replace the water pump and housing - cheap insurance-)

 

[nightrider21]

Thanks for the replies, I've been thinking about how the water would get by the thermostats when it's cold to the pee hose. But I've never had a motor that didn't start peeing right away so I figured something must be wrong. This boat does have a factory water pressure gauge on it but it's broken, needle is stuck at 25 psi. If that had been working I probably would have not been to concerned about the peeing, but atleast I found the sand problem before that caused me any problems.

 

[2springers26]

water....

if you have water coming out the prop exhaust...... you do have water going thru the power head assy...... the past coments are correct tstats don't open & send water to the tell tail til the tstats reach 143 deg.... i'd pull poppet, t stats & tell tail back flush them all with water.. & compressed air.....Kurt

 

[ross]

if you have water coming out the prop exhaust...... you do have water going thru the power head assy...... the past coments are correct tstats don't open & send water to the tell tail til the tstats reach 143 deg.... i'd pull poppet, t stats & tell tail back flush them all with water.. & compressed air.....Kurt

do your self a favor and listen to this.....he knows his sh*t!!!!!

 

[WILDMAN]

Don't bother doing anything to it. There's nothing wrong with it! The 225 Promax will NEVER pee at idle, no matter what you do. Just get it on plane and it will start. Keep an eye on the temp guage, but you should'nt have a problem. Trust me, I've had 5 of them!

 

[nightrider21]

I tried letting the motor run on the muffs long enough so it would open the thermostats so I could see it pee, But since the snow just melted here in minnesota my water pipe in the ground that is hooked to my garden hose was still to cold to were the motor never got hot enough. So with my water pressure gauge broken, needle stuck at 25psi, I took off the gauge pressure hose on the motor , started it back up and it must of thrown a stream of water 10 feet behind the boat. So I'd say were good to go, just have to pick up a new pressure gauge. It is good that I didn't understand this motors water system, or I would have not found the sand packed in the water pump until maybe it was to late.

 

[2springers26]

water....

with SAND being packed in the water pump id definately inspect the tstat & poppet area... fill & back flush with water....... if it packedthe pump it packed the poppet & possibbly the heads...... with no temp gauge or water pres .. i'd look @ it.. & get you water pres gauge fixed..... you have an over heat alarm test it by grounding the sender wire (starboard head ) ( tan wire ) to ground... horn will go on with key on.. if not FIX it....... kurt