9.5hp Johnson

[deebright]

Just picked up a 9.5 Johnson from a friend for free. He said it ran perfectly fine last year and stopped running mid-season. I haven't got a chance to look at it yet so not sure of the year and model # just yet, but I will post as soon as I find out. I will be getting the motor tomorrow and after doing some reading I planned on changing the spark plugs, impeller, checking gears and putting grease in gearcase, and cleaning the carb. He said he wasn't getting gas through the fuel pump and one point and took it apart once so I plan on going back through the fuel pump to make sure everything is in correct order and alignment. Found a website that seems to have most of the info I need. Johnson

Does this sound like a good place to start? I'm not the most mechanically inclined person so we'll see where I can get on my own that's why I made this account in hopes that you guys can help me through the process. I also talked to a guy locally that I can buy a manual off of once I figure out what year and model it is. Hopefully the manual will help as well.

Will post updates throughout the process with pics.

 

[Will Bark]

Re: 9.5hp Johnson

You can also go to "Leeroy's Ramblings" and find a wealth of info on your motor complete with pictures. Good luck

 

[deebright]

Re: 9.5hp Johnson

You can also go to "Leeroy's Ramblings" and find a wealth of info on your motor complete with pictures. Good luck

that's the website I tried to post the link to. I don't know why it only showed up as "johnson"

 

[deebright]

Re: 9.5hp Johnson

I looked at the model and its a 9R71R. So it's a 1971 motor. I also tried to take a look at the impeller and am having troubles. I took the 4 bolts off the bottom and put the shift lever in the up position but I cannot get the lower unit to drop far enough to loosen the inside bolt that is on the brass box. It is only dropping a half inch or so and I can barely get a flathead screwdriver in there but I'd rather get a socket in there so I don't strip it out. Any suggestions?

 

[racerone]

Re: 9.5hp Johnson

That is where it comes apart.-Try turning the prop and shifting to get it to drop down a wee bit more.---Screw must be taken out to release the rod.-----Notch must be lined up with the hole on re-assembly.

 

[deebright]

Re: 9.5hp Johnson

That is where it comes apart.-Try turning the prop and shifting to get it to drop down a wee bit more.---Screw must be taken out to release the rod.-----Notch must be lined up with the hole on re-assembly.

What notch and which hole? I'll try turning the prop I didn't try that yet. I didn't know if I should really be pulling hard to get it to drop more. I don't want to break anything.

 

[racerone]

Re: 9.5hp Johnson

Tried shifting to reverse ?----The screw must be taken out of the brass coupler right there !!!---That is how they come apart.

 

[deebright]

Re: 9.5hp Johnson

Yes I had it shifted to reverse and I got it to drop about 1/4". The gap isn't big enough to get a tool in there to loosen the bolt on the coupler. Should it be dropping further down when I shift it to reverse?

 

[racerone]

Re: 9.5hp Johnson

Sorry , not sure what the problem is but that is where they all come apart.--I worked on those motors when they were new.

 

[boobie]

Re: 9.5hp Johnson

If it was mine and I said mine, I'd give the gear case a good rap with a rubber mallet.

 

[HighTrim]

Re: 9.5hp Johnson

There will be just enough, and I mean just enough room to get a screwdriver or thin walled socket through the gap. What size socket are you trying to use? Use a small, thin walled one, or a screwdriver.

 

[deebright]

Re: 9.5hp Johnson

It takes a flathead and I got a screwdriver on it a cpl times but it's pretty tight on there and it kept wanting to strip out. I will try a cpl wacks with a mallet to squeeze out enough room for a socket.

I also looked at some fuel pump diagrams and seems like the tabs are not aligned correctly, so I will be taking that apart when I get a few hours of free time and reassembling. Seems like keeping those springs in place is going to be tough.

 

[sndmntboy]

Re: 9.5hp Johnson

Its not that bad. I have a 70 model and a rebuild kit for it was about $11. Follow Leroy's instructions and you will be fine. I love that website. I recently rebuilt the carb and fuel pump on mine. I haven't done any lower unit work though.

 

[Dougan]

Re: 9.5hp Johnson

Carbs are REALLY simple on these motors, so don't get nervous about cleaning them.

 

[deebright]

Re: 9.5hp Johnson

I got the lower unit to drop finally and was able to get a socket on the bolt on the brass coupling. I also saw that the brass coupling had 2 bolts on it and I couldn't get it to drop until I loosened the top one as well which was tough to do because there wasn't very much space to work with. But I ended up getting it off and to the impeller and it looks to be in good shape. The only question I have is that it seems to be too large. I haven't put it back together yet but it seems like it will be a task to try to get all of those fingers on the impeller bent enough to fit inside the housing. Here's some pics let me know what you think. Thanks again.

 

[racerone]

Re: 9.5hp Johnson

It is not too large at all.---You put the impeller on the shaft.----Make sure the pin is driving the impeller.--Then lower the housing onto the impeller.--Turn the driveshaft in the normal direction of engine rotation.--Gently push down on the housing when you turn the shaft.--Install the screws.

 

[deebright]

Re: 9.5hp Johnson

Ok I got the impeller back on in the groove and into the housing. Then my drive shaft stopped spinning my prop while I was trying to put the lower unit back on. So I took lower unit gear housing apart and checked the gears while I had it open and they look fine as well. Put back together and now I'm only getting 2 slots on the shifter instead of 3 (D, N, R). I'm not even sure how to tell if I'm getting R and N or if I'm getting N and D. I quit for the night but I'm guessing I need to make sure the shifter is matching with the clip that's on the gears? Should I turn the motor upside down onto the flywheel to get the lower unit back together? Seems like I'm gonna end up knowing this motor inside and out by the time it's all said and done lol.

 

[deebright]

Re: 9.5hp Johnson

I got it shifting again.

Today I hooked up gas to it and pumped the ball to see where I was getting gas to. Gas ended up spraying out the sides of the fuel pump. There is a rebuild kit for these fuel pumps with all the new rubber pieces and seals for under $15 that I plan to buy and go from there. Some gas was getting through to the carb and some was spraying out the sides.

 

[deebright]

Re: 9.5hp Johnson

Update and still in need of help.

Fuel pump rebuild went fine and motor is running fine. But now it will not shift into Forward. I made sure the rod went all the way up into the brass coupler already. Is it something in the lower unit? Need help bad I'm stuck and feel like I've tried everything.

Thank You

 

[sndmntboy]

Re: 9.5hp Johnson

You may have already checked this but in the diagram on part #66 there is a adjustment for the foward and reverse. The adjustment is the #74 bolt in the diagram. Mine has been loose or out of adjustment to where it would not shift into forward.