1995 120 force cooling problems

[kdesjarlais]

I just had my 120 going for the first time this year.I have just put in a new themostat.I filled a barrel with water ,had my battery charged and ready,put new gas in the tank and so on.It fired up nice and ran well I turned it off and on a couple of times and then I shut it off and left it for a while and when I tried it again it fired up but it wasn,t pissing out any water and it started to get warm so I turned it off.I picked up an extra t'stat so I took the one out I just put in and put the new one in and tried it again ,it started pissing out water.So I ran it for a while again,turned it off and on again then it did it again.I am thinking it has something to do with the pump or impeller.
If so where is it located?I have a pretty good idea but I don't want to start tearing things apart before I am positive where to start.
Even a pic or diagram would help.
Thanks

 

[valencehsift]

Re: 1995 120 force cooling problems

You need to take off the lower end. I just did my force 150. On mine there is a screw hidden in the exhasut aswell. As soon as you drop the lower end, the water pump housing sits right on top, within that is the impeller. You are better off getting an impeller kit. Took me about an hour but I have the manual at hand, you can pick them up on ebay between $20-$30 and well worth it.

 

[kdesjarlais]

Re: 1995 120 force cooling problems

Thanks,
I phoned the marine shop already this morning and I ordered the kit.
I there anything I should know before I take off the lower end.
I don't have alot of experience with this stuff so I am kinda goin in blind.
I am more familiar with auto mech than marine.
Thanks

 

[valencehsift]

Re: 1995 120 force cooling problems

Pretty straight forward, it can be done by your self but an extra pair of hands will help when having to line up the drive shaft and the shift pin back in place. The shift pin has a tiny cotter pin, make sure you remove it before lowering the lower unit, also grease the impeller and impeller housing before you install. Also, the impeller will be slightly oversized, so remember which way the veins are bent when installing the new one. You will know what I mean as soon as you remove the housing. The impeller key is what holds the impeller in place and is easy to lose when taking the old one off. It wont let me attach a file as it is too big, if you want, send your email and i will scan and send you what you need from the manual.

 

[kdesjarlais]

Re: 1995 120 force cooling problems

Sorry did you get that reply earlier?
I had some computer problems and don't know if it made it

 

[valencehsift]

Re: 1995 120 force cooling problems

Sorry for the delay, let me know if you need more info from the manual.

 

[kdesjarlais]

Re: 1995 120 force cooling problems

Thanks,
That should be good.
I will let you know how it goes later.

 

[kdesjarlais]

Re: 1995 120 force cooling problems

So I finished putting it all back together and I had some starter problems so I had it rebuilt.It started up fine but when it starts it seems like it is in gear.I have it in a barrel of water and when it starts it blows all the water out like it is in gear.It started a couple of times then I had to fill the barrel then the starter gear got jammed down so I unjammed it then it got stuck up and I had to take it right off to unjam it.
Doing the impeller worked and everything seemed to come off and go back together real well.

 

[valencehsift]

Re: 1995 120 force cooling problems

So the pump works ok now? You think it is pumping to much water in neutral?
By the way, how much did it cost you to have your starter re-done?

 

[kdesjarlais]

Re: 1995 120 force cooling problems

The pump seems to be working fine.When it gets going the water just overflows out of the barrel and it is in neutral.Before it would start and this did not happen it would run and if I put it in gear it would overflow the water out of the barrel
Could I have maybe put something together wrong?
I took pics as I went so I knew how it went back together.
The starter cost me 85 dollars to rebuild.Compared to 325 for a new one.

 

[skibug]

Re: 1995 120 force cooling problems

With the engine off and the shifter in neutral, see if the prop will spin freely. If not, then your gear shift rod was turned when installed. This put your lower unit in gear when your controls are actually in neutral. You have to make sure the lower unit is in nertral and your shifter is in neutral as well when it all goes back together. You can use a pair is channel locks to manually shift the lower unit in and out of gear with the unit off the motor.

Here is a pic. I am talking about part number 36 below.

 

[kdesjarlais]

Re: 1995 120 force cooling problems

Just so I get this right. What do you mean by channel locks?
Thanks

 

[skibug]

Re: 1995 120 force cooling problems

Just so I get this right. What do you mean by channel locks?
Thanks

Channel Locks, Pliers, something of that sort. Just something to grip the shaft and turn it till the prop spins freely in both directions if it does not do so already. You can turn it in one direction and it will put the lower unit in forward. Turn it the opposite direction and it will be in reverse. In between is neutral.

Does that make sense? It is the smaller shaft on the lower unit towards the front of the unit when off.

 

[kdesjarlais]

Re: 1995 120 force cooling problems

Thanks I will do that.

 

[kdesjarlais]

Re: 1995 120 force cooling problems

Well everything seems to be working fine so far. I took the leg off and made sure the prop was spinning freely, reinstalled it ,filled the barrel up and it fired up and ran pretty well.Now hopefully I can get out to the lake soon and give it a good test.
I want to thank you guys and this website for your expertise it was very helpful.
Now I can just keep my fingers crossed in hopes that it will all be O.K. to take on my fishing trip in late June.
Thanks Again