Water Pump Replacement '99 Merc 150

[randlemanboater]

Well boys, I got a late start because of rain and it rained on me for a few minutes while working, but it is done.

The key to this job was having a good helper.

http://i145.photobucket.com/albums/r222/randlemanboater/101_0102.jpg

That plus being able to phone friends while I was in the yard rasslin that sucker. *(Thanks Lord Skools) *Another mechanic friend helped me by pulling up diagrams on the computer while I was at the motor.

Once I found all the bolts holding on the gearcase (there are 7 in a Merc 150) it slid right off.

http://i145.photobucket.com/albums/r222/randlemanboater/101_0107.jpg

The good news was that the old waterpump looked fine.....that is also the bad news, I was hoping it was crap and I would solve my overheat problem. *There were plenty of signs that the motor had sucked up sand.


http://i145.photobucket.com/albums/r222/randlemanboater/101_0111.jpg


http://i145.photobucket.com/albums/r222/randlemanboater/101_0109.jpg

Putting the motor in forward gear was the trick, it all went back together real smooth.

http://i145.photobucket.com/albums/r222/randlemanboater/101_0112.jpg

http://i145.photobucket.com/albums/r222/randlemanboater/101_0113.jpg

And the results?

I don't know, it got time for church so I will have to test it out in the morning.

[randlemanboater]

Well boys, I got a late start because of rain and it rained on me for a few minutes while working, but it is done.

The key to this job was having a good helper.

http://i145.photobucket.com/albums/r222/randlemanboater/101_0102.jpg

That plus being able to phone friends while I was in the yard rasslin that sucker. *(Thanks Lord Skools) *Another mechanic friend helped me by pulling up diagrams on the computer while I was at the motor.

Once I found all the bolts holding on the gearcase (there are 7 in a Merc 150) it slid right off.

http://i145.photobucket.com/albums/r222/randlemanboater/101_0107.jpg

The good news was that the old waterpump looked fine.....that is also the bad news, I was hoping it was crap and I would solve my overheat problem. *There were plenty of signs that the motor had sucked up sand.


http://i145.photobucket.com/albums/r222/randlemanboater/101_0111.jpg


http://i145.photobucket.com/albums/r222/randlemanboater/101_0109.jpg

Putting the motor in forward gear was the trick, it all went back together real smooth.

http://i145.photobucket.com/albums/r222/randlemanboater/101_0112.jpg

http://i145.photobucket.com/albums/r222/randlemanboater/101_0113.jpg

And the results?

I don't know, it got time for church so I will have to test it out in the morning.

[THEFERMANATOR]

What did the old impellor look like when you removed it from the housing. Did the vanes pop out or stay laid over? The vanes have to spring out to work properly. The pumps don't really wear per say, they more or less lose there elasticity and quit pumping.

[THEFERMANATOR]

What did the old impellor look like when you removed it from the housing. Did the vanes pop out or stay laid over? The vanes have to spring out to work properly. The pumps don't really wear per say, they more or less lose there elasticity and quit pumping.

[msbhammer]

Randleman, Great work. Good job on talking him through SKOOL. Hope that fixed the problem. Keep us posted. Wishing for the best for ya Brother. ;)

[msbhammer]

Randleman, Great work. Good job on talking him through SKOOL. Hope that fixed the problem. Keep us posted. Wishing for the best for ya Brother. ;)

[randlemanboater]

The vanes on the old one popped out straight and were pliable, but who knows, maybe it needed replacing.

[randlemanboater]

The vanes on the old one popped out straight and were pliable, but who knows, maybe it needed replacing.

[randlemanboater]

It worked!!!!! No overheat warning after 30 mins running on the hose.

See my post in "Calling all Merc Mechs" for more.

[randlemanboater]

It worked!!!!! No overheat warning after 30 mins running on the hose.

See my post in "Calling all Merc Mechs" for more.

[msbhammer]

Good job Randleman. Now come up and replace mine . ;D

[msbhammer]

Good job Randleman. Now come up and replace mine . ;D

[Skools Out]

hey this may sound crazy but was the shaft keeper in the old impeller? i was wondering if they had replaced the pump with new and forgot to install that and maybe the drive shaft was slipping inside the pump impeller? i've seen that happen before should have told you check that too.

[Skools Out]

hey this may sound crazy but was the shaft keeper in the old impeller? i was wondering if they had replaced the pump with new and forgot to install that and maybe the drive shaft was slipping inside the pump impeller? i've seen that happen before should have told you check that too.

[randlemanboater]

It was there, but when I pulled the housing off the impeller stayed inside it so I am not sure if it was in there correctly or not.

[randlemanboater]

It was there, but when I pulled the housing off the impeller stayed inside it so I am not sure if it was in there correctly or not.

[randlemanboater]

Good job Randleman. Now come up and replace mine . *;D

You can do it, all you need is a few wrenches and the locations of all the stinking bolts.

[randlemanboater]

Good job Randleman. Now come up and replace mine . *;D

You can do it, all you need is a few wrenches and the locations of all the stinking bolts.

[Skools Out]

oh ok yeah alot of people miss getting that hooked up correctly too. i'd hang on to that impeller if it's soft.

[Skools Out]

oh ok yeah alot of people miss getting that hooked up correctly too. i'd hang on to that impeller if it's soft.

[randlemanboater]

It will go with the motor when I sell it.

[randlemanboater]

It will go with the motor when I sell it.

[Stillrunning]

Those things can look just fine but if they have any grooving at all it can cause them to fail. I have replaced them thinking I was wasting my time but it ended up solving my problem as did yours. I would throw the part away *if it stoped your over heating why give them to someone who may install it to give them problems. Its always nice when its an easy fix. That Merc pump and set up looks allot like the one on my 1994 150 Johnson.

[Stillrunning]

Those things can look just fine but if they have any grooving at all it can cause them to fail. I have replaced them thinking I was wasting my time but it ended up solving my problem as did yours. I would throw the part away *if it stoped your over heating why give them to someone who may install it to give them problems. Its always nice when its an easy fix. That Merc pump and set up looks allot like the one on my 1994 150 Johnson.

[macojoe]

http://syncboard.com/albums/album02/130_G.gif

[macojoe]

http://syncboard.com/albums/album02/130_G.gif

[C YENSEN]

nice work you can now breathe and official sigh of relief ;D ;)

[C YENSEN]

nice work you can now breathe and official sigh of relief ;D ;)

[Blue_Runner]

Way to go RB! I know you probably already know this, but it is wise to replace the impeller every year for salt and every 2 years for fresh water, so I've always heard.

So, didja miss a bolt at first and think it was stuck? I did that my first time. It does help to get all the bolts out before you try to remove it. ;D

You are now the official Wellcraft V20 Mercury impeller subject matter expert. ;) Where are you taking her this weekend?

[Blue_Runner]

Way to go RB! I know you probably already know this, but it is wise to replace the impeller every year for salt and every 2 years for fresh water, so I've always heard.

So, didja miss a bolt at first and think it was stuck? I did that my first time. It does help to get all the bolts out before you try to remove it. ;D

You are now the official Wellcraft V20 Mercury impeller subject matter expert. ;) Where are you taking her this weekend?

[randlemanboater]

I am no expert, just lucky and dumb.

Yes, I thought the "hidden" bolt was the one holding the trim tab on, but the hidden bolt is hidden under the trip tab.

It will probably be Monday or Tuesday, the weekend is no good for me.

[randlemanboater]

I am no expert, just lucky and dumb.

Yes, I thought the "hidden" bolt was the one holding the trim tab on, but the hidden bolt is hidden under the trip tab.

It will probably be Monday or Tuesday, the weekend is no good for me.

[randlemanboater]

Here's a pic of the sand comming out.

http://i145.photobucket.com/albums/r222/randlemanboater/101_0117.jpg

[randlemanboater]

Here's a pic of the sand comming out.

http://i145.photobucket.com/albums/r222/randlemanboater/101_0117.jpg

[macojoe]

It looks like the last time out she sucked up a ton of sand, must have wiped out the pump then and that was the end for the last owner!

His loss and your gain!

But I hope all the sand came out cause it was pushed out by the new pump, and there was nothing left in there to hurt the new pump.
Which I am sure is the case cause you cleaned out the lower unit when you changed everything.

You be good to go now!! ;D

[macojoe]

It looks like the last time out she sucked up a ton of sand, must have wiped out the pump then and that was the end for the last owner!

His loss and your gain!

But I hope all the sand came out cause it was pushed out by the new pump, and there was nothing left in there to hurt the new pump.
Which I am sure is the case cause you cleaned out the lower unit when you changed everything.

You be good to go now!! ;D

[bradford]

That previous owner (With his fake Italian marble countertop install), probably just powered through the sandbars when he hit them instead of trimming up or trying to float off!

[bradford]

That previous owner (With his fake Italian marble countertop install), probably just powered through the sandbars when he hit them instead of trimming up or trying to float off!

[randlemanboater]

That previous owner (With his fake Italian marble countertop install), probably just powered through the sandbars when he hit them instead of trimming up or trying to float off!

I believe you are right.

Thursday is the day for the lake test run.....I hope.

[randlemanboater]

That previous owner (With his fake Italian marble countertop install), probably just powered through the sandbars when he hit them instead of trimming up or trying to float off!

I believe you are right.

Thursday is the day for the lake test run.....I hope.

[msbhammer]

Bring the Camera Randlman. You know what we want...and know where you live at if you DONT. >:( ;D ;D ;D ;D ;D ;D

[msbhammer]

Bring the Camera Randlman. You know what we want...and know where you live at if you DONT. >:( ;D ;D ;D ;D ;D ;D

[randlemanboater]

I'll take the still and video camera. ;D

[randlemanboater]

I'll take the still and video camera. ;D

[randlemanboater]

Ran it for 2 hours at the lake, no more overheat. ;D

http://i145.photobucket.com/albums/r222/randlemanboater/101_0118.jpg

[randlemanboater]

Ran it for 2 hours at the lake, no more overheat. ;D

http://i145.photobucket.com/albums/r222/randlemanboater/101_0118.jpg

[msbhammer]

Sweet motor. 20 bucks a month for how long. ;D

[msbhammer]

Sweet motor. 20 bucks a month for how long. ;D

[randlemanboater]

Add a zero and we can talk. :)

[randlemanboater]

Add a zero and we can talk. :)

[reelapeelin]

Sweet motor. 20 bucks a month for how long.+0 ;D


Hows that?...

[reelapeelin]

Sweet motor. 20 bucks a month for how long.+0 ;D


Hows that?...

[randlemanboater]

:(

[randlemanboater]

:(

[macojoe]

Ok I will give you $200 for one month! When can I come get it?? ;) ;D

[macojoe]

Ok I will give you $200 for one month! When can I come get it?? ;) ;D

[reelapeelin]

We got some pretty SLICK talker around here, RB...better watch yer stuff ::) ...

[reelapeelin]

We got some pretty SLICK talker around here, RB...better watch yer stuff ::) ...

[randlemanboater]

We got some pretty SLICK talker around here, RB...better watch yer stuff ::) ...

You mean WIND TALKERS.

[randlemanboater]

We got some pretty SLICK talker around here, RB...better watch yer stuff ::) ...

You mean WIND TALKERS.

[macojoe]

what?? thats fare, he said add a 0 and they can talk, so I will give $200 a month for one month :P

http://syncboard.com/albums/album02/100_G.gif

[macojoe]

what?? thats fare, he said add a 0 and they can talk, so I will give $200 a month for one month :P

http://syncboard.com/albums/album02/100_G.gif