Boston Predictor
Well-known member
Are you 100% positive youve got a tight muff? I dont know how many times Ive had to deal w/ a loose muff. A bad muff could be your problem...sometimes you just need a little extra PSI
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Water Pump/Impeller replacement
- Thread starter Rob B
- Start date
Boston that's a good question. i've got one that just slides over the intake/holes on the foot. My alarm went off so I shut the engine off and
haven't tried it again. I assume my water pump/impeller is bad.
kct11
Well-known member
Peeing Johnson's and tight muff's. What is this world comming to.
Had coffee out the nose on that one.
Had coffee out the nose on that one.
Peeing Johnson's and tight muff's. What is this world comming to.
Had coffee out the nose on that one.
don't cha hate it when that happens!!!! you gotta love this forum and it all started with a bad water pump.
! lol the play on words w/ whats on our brains sex,boats ,hobbies . . . hell role it all into 1 ! ive had pop, milk n water ,but the java ? ouch
You would think after 5+ years on this board I would have learned not to drink anything while reading.
I've used both Mercury and Sierra parts. The Sierra stuff I've used so far has been OK, but when it comes to critical things like the water pump I go with the Mercury stuff. If your closest dealer is 90 miles away, then google Mercury outboard water pump and you'll come up with some good places to order it online. The hardest thing about changing a water pump is getting that dang LU back on...............................
http://www.boatmotors.com/mall/part...ch_form=1&gd_grid_id=934&session_id=026093197
Iboats.com lists both the Sierra rebuild kit and the Mallory rebuild kit. I wouldn't be surprised if one of these guys makes the pump for Mercury...........
Iboats.com lists both the Sierra rebuild kit and the Mallory rebuild kit. I wouldn't be surprised if one of these guys makes the pump for Mercury...........
I think I'd just try a new impellor before I spent the money on a whole new pump assembly. And make sure it's really the water pump and not a clogged hose.
Put your LU into a big bucket of water. Pop the cowling. Pull one of your water hoses off the back of the motor. Blow into the hose HARD, and you should see bubbles coming from the LU. Might take a couple of breaths to get the air down there. I got a motor that was so full of crud, it couldn't flow. By blowing backwards into the system, I got it cleared out and then the water flowed fine.
You sure you dont have a mud dauber wasp build his baby nest up in there? Happens to me every year. Wish I was there to help you mess around with it................
Put your LU into a big bucket of water. Pop the cowling. Pull one of your water hoses off the back of the motor. Blow into the hose HARD, and you should see bubbles coming from the LU. Might take a couple of breaths to get the air down there. I got a motor that was so full of crud, it couldn't flow. By blowing backwards into the system, I got it cleared out and then the water flowed fine.
You sure you dont have a mud dauber wasp build his baby nest up in there? Happens to me every year. Wish I was there to help you mess around with it................
Jw thanks for the info and advice. I'll try the things you suggested first before doing a water pump replacement. On my other boats i've have dirt
dauber in the oulet hose.
Another question; would that cuase my alarm to go off?
Btw i could fly you down south for a week or you could relocate here.
dauber in the oulet hose.
Another question; would that cuase my alarm to go off?
Btw i could fly you down south for a week or you could relocate here.
Find me a great job and a house on a nice lake, and I'm there.......................
Alarm went off because your motor got hot enough to set it off. The mud dauber up the pee hole wont cause that, but if you got mud daubers up higher and are blocking the exit hoses then yes, the alarm can go off because you can't get water out of the heads.
If you trim your engine all the way down and jack up the nose of the boat as far as possible without damaging your skeg, you can try pulling the hoses off the top of your heads and see if you get water flow up there. (angle up the boat to let the water fall away from the engine). Or, simply pull those hoses and make sure they're clear with some air. And pull that T-Stat out and take a look. I had an engine stop flowing water because the T-Stat was full of tiny shells and couldn't open anymore.
Alarm went off because your motor got hot enough to set it off. The mud dauber up the pee hole wont cause that, but if you got mud daubers up higher and are blocking the exit hoses then yes, the alarm can go off because you can't get water out of the heads.
If you trim your engine all the way down and jack up the nose of the boat as far as possible without damaging your skeg, you can try pulling the hoses off the top of your heads and see if you get water flow up there. (angle up the boat to let the water fall away from the engine). Or, simply pull those hoses and make sure they're clear with some air. And pull that T-Stat out and take a look. I had an engine stop flowing water because the T-Stat was full of tiny shells and couldn't open anymore.
JW,
I disconnected the hose from the t-stat,left side facing the motor. Both t-stat's are ok.The only air i'm getting is from the tell tale or the outlet hose. I didn't have a bucket deep enough to cover the LU so i had a friend to put his hands over the holes, he felt no air coming out. Any more idea's? I might change the impeller anyway.
A big thanks to everyone for the help and advice. I got the LU off, the top of the water pump came off with no trouble. Need some help now. The impeller is stuck on about an 1" off the bottom next to the WP housing. Is there a trick to getting it off. Any hlep would be appreciated. See attached.
thanks
thanks
Attachments
Boston Predictor
Well-known member
Fried pump
Your just gonna have to muscle it off. These things are a bitch to get off sometimes. I used a long screwdriver and retard strength. Try soaking it in WD40 for a while. Its not going to come off without a good fight.
Your just gonna have to muscle it off. These things are a bitch to get off sometimes. I used a long screwdriver and retard strength. Try soaking it in WD40 for a while. Its not going to come off without a good fight.
Thanks Boston Predicter that tip worked. I finally got the LU back in, cranked the motor within a few minutes started pissing. Then it just quit pissing a few minutes later. Now the buzzer will not go off, my gauges quit working....WTF. Man when it goes wrong it goes wrong. I have no idea what's going on. Help!!!
. Then it just quit pissing a few minutes later. Now the buzzer will not go off, my gauges quit working....WTF. Man when it goes wrong it goes wrong. I have no idea what's going on. Help!!!