(update) I screwed up now! Exposing the powerhead on a 1970 9.5hp Johnson

[wildmaninal]

When I got this motor the drive shaft was stuck in the bottom of the power head and the foot was off of it. Obviously the previous owner either didn't put the o'ring on the top of the drive shaft or never had it apart to replace it. Well that drive shaft is stuck in there good none the less. I know the motor runs, I had it running a few days ago with the water hose hooked to the pipe.

The only thing I would like to know is how do I get to the bottom of the powerhead?

I started to take the lower unit cover apart to see if I can split it, I figured I might be going in the wrong direction and that I need to check with you guys here first. This is going to be a keeper for me when I get it fixed. Although I scuffed up the drive shaft a little while trying to clamp on to it, don't know if it would be wise to use the motor like that or not.



I've been knocking these motors out one by one taking care of each problem that I find and thanks to the guys that have helped me on my other threads. Been lucky that I haven't had to spend any money on them or not much money if I had. I got my little 5.5hp wards outboard running today that I only paid $5 for.

 

[Benny1963]

Re: Exposing the powerhead on a 1970 9.5hp Johnson

Re: Exposing the powerhead on a 1970 9.5hp Johnson

wild one sounds like your getting it on the small motors .
i watch your post ive only done a couple of small ones .
my smallest to date is a 50 largest a175 hopeing to find a couple of bargains
.myself

 

[wildmaninal]

Re: Exposing the powerhead on a 1970 9.5hp Johnson

Re: Exposing the powerhead on a 1970 9.5hp Johnson

I'm learning about these small motors, really there isn't much to them except for this 9.5hp I looked at the carb diagram for that motor , what a mess I hope I don't half to tackle that anytime soon. Believe me if you slip up on a small motor for dirt cheap you'll give in and buy it or at least I would .

I wasn't thinking about brp's website and diagrams when I started this thread. I've been so tied up in these older motors that I forgot that I moved on to a newer one lol. I looked up the diagram and it is still confusing. Maybe I'll figure it out tomorrow or the next day.

 

[F_R]

Re: Exposing the powerhead on a 1970 9.5hp Johnson

Re: Exposing the powerhead on a 1970 9.5hp Johnson

The 9.5 floats on rubber mounts inside a "shell". To get the powerhead off, you first have to shuck the whole motor out of the shell. An intimidating project for the novice, to say the least. The bottom line is that the shell splits into two halves. Easier to say than to do. Lots of stuff to take apart before you get that far. It's easy for me to do because I've done a ton of them.

 

[wildmaninal]

Re: Exposing the powerhead on a 1970 9.5hp Johnson

Re: Exposing the powerhead on a 1970 9.5hp Johnson

Thanks FR. How much do you wanna bet that I'll get it apart without having to come back on here though ? Just joking. I figured it split apart but like you said it looks to be intimidating and I decided to put the brakes on and come here before I screw something up.

 

[iwombat]

Re: Exposing the powerhead on a 1970 9.5hp Johnson

Re: Exposing the powerhead on a 1970 9.5hp Johnson

Hopefully, this will help you figure out what you need to do:

 

[wildmaninal]

Re: Exposing the powerhead on a 1970 9.5hp Johnson

Re: Exposing the powerhead on a 1970 9.5hp Johnson

Iwombat thanks for that picture, it'll come in handy for sure.

About this scuffed/skinned up drive shaft should I replace it? It was already like this before I bought the motor but I made it worse.

 

[ezeke]

Re: Exposing the powerhead on a 1970 9.5hp Johnson

Re: Exposing the powerhead on a 1970 9.5hp Johnson

If the driveshaft has wear at the contact point for the gear oil seal, you might consider replacing it, although sometimes you have enough to just raise the seal a little and cope.

 

[wildmaninal]

Re: Exposing the powerhead on a 1970 9.5hp Johnson

Re: Exposing the powerhead on a 1970 9.5hp Johnson

Alright I'll have a look and see what it looks like when I get it off and am able to play with it, thanks for the reply. Here I am assuming that I might be able to still use that drive shaft and I don't even know what it looks like at the powerhead end of it. It may not be any hope for it after all , who knows. I'll find out when I get the drive shaft out wont I? I asked about a drive shaft earlier today when I went to pick up a control box and he pointed out that he had a whole lower unit which I don't need or at least I don't think I do at the moment. I would half to get off of the old hip pocket for the whole LU .

Thanks again.

 

[iwombat]

Re: Exposing the powerhead on a 1970 9.5hp Johnson

Re: Exposing the powerhead on a 1970 9.5hp Johnson

Meawhile if you need something don't be afraid to drop me a PM. I've a couple of parts motors laying about collecting dust.

No spare drive shafts though.

 

[wildmaninal]

Re: Exposing the powerhead on a 1970 9.5hp Johnson

Re: Exposing the powerhead on a 1970 9.5hp Johnson

I hear ya Iwombat and I appreciate it.

 

[wildmaninal]

Re: Exposing the powerhead on a 1970 9.5hp Johnson

Re: Exposing the powerhead on a 1970 9.5hp Johnson

Well I got up the nerve to go out there and fight that 9.5hp and I finally got the powerhead and drive shaft exposed. I have a humty dumpty situation though I don't know if I'll ever get that motor back together again. I might end up buying a manual just for this reason.

All I can say is.....WHAT A MESS!!!!!! I plan on keeping this motor to . I sprayed some liquid wrench and wd40 where the shaft meets the powerhead. I don't know how long it is going to take to get that shaft out. There are so many hidden bolts and so many tricks to that motor it is unreal, you might as well be working on a modern car .

FR this novice finally done it .

 

[F_R]

Re: Exposing the powerhead on a 1970 9.5hp Johnson

Re: Exposing the powerhead on a 1970 9.5hp Johnson

You are above the average novice. I think you will agree that the guy with no mechanical aptitude would find it kind of a task to say the least.

 

[patrickray]

Re: (update) Exposing the powerhead on a 1970 9.5hp Johnson

Re: (update) Exposing the powerhead on a 1970 9.5hp Johnson

Very good thread for me. I will be doing the same thing in about a week or so. I have to replace the water tube in my 72, 9.5 johnson. As far as I can tell, pretty much have to strip the motor down to get the power head out. But I have time, and I fix all the machines at work. So, when I get a clear weekend. I know what Ill be doing. In the mean time. Ill be watching this thread for all the advice I can use. Thanks

 

[wildmaninal]

Re: (update) Exposing the powerhead on a 1970 9.5hp Johnson

Re: (update) Exposing the powerhead on a 1970 9.5hp Johnson

You are above the average novice. I think you will agree that the guy with no mechanical aptitude would find it kind of a task to say the least.

I agree 100%. I tell ya what....They would most likely take it to a boat mechanic and spend an arm and a leg to have it fixed or sell the motor for parts before they tempted a job like this I bet. Now if I could just find a way to orginize my work space/shed I would be alright.

Very good thread for me. I will be doing the same thing in about a week or so. I have to replace the water tube in my 72, 9.5 johnson. As far as I can tell, pretty much have to strip the motor down to get the power head out. But I have time, and I fix all the machines at work. So, when I get a clear weekend. I know what Ill be doing. In the mean time. Ill be watching this thread for all the advice I can use. Thanks

I don't know how handy my info will be to you Patrickray, this may be a long drawn out process in order for me to get this motor back together. I along with these guys here will try and help the best we can if you end up starting a new thread about a certain problem. Meanwhile keep an eye out on this thread if it hangs around and doesn't wonder off, maybe you'll find some handy info.

 

[wildmaninal]

Re: (update) I screwed up now! Exposing the powerhead on a 1970 9.5hp Johnson

I've done it now!! I was using a block of wood on the leg to hit it with a hammer while the motor was hanging upside down in a vice well I don't think the shaft moved much if it did at all.

Well I took the leg completely off and swapped to a rubber mallet (like an idiot) and I darn near broke one of the bolt hole ears off of the bottome of the powerhead, one of the bolt holes for the leg. I know it got pushed in, I took and barely hit it back into place. Now I don't know what would be the best method to repair this, it isn't broke completely off it is just cracked like heck.

Pictures coming soon .

 

[wildmaninal]

Re: (update) I screwed up now! Exposing the powerhead on a 1970 9.5hp Johnson

Here is the picture. I am about sure that this part can be replaced but I am having a hard time finding a part number and discription of it.

I was in panic mode before, I'm still irratated because this is just more money that I can't spend right now.

 

[iwombat]

Re: (update) I screwed up now! Exposing the powerhead on a 1970 9.5hp Johnson

I've probably got that piece if you want it. Replacing it will mean dismantling the whole powerhead though. Have you soaked those drive shaft splines in PB blaster for a week or more yet? Do that before breaking out the "boomer" again.

 

[mikesea]

Re: (update) I screwed up now! Exposing the powerhead on a 1970 9.5hp Johnson

Sometimes a vicegrip snapped on the shaft and then hitting the vice grip will help.I have used up to 3 vice grips snapped on the shaft touching eachother to stop sliding and hitting the oldes one, you can use heat too,but you will defiatly need to change any seals that get damaged

 

[ezeke]

Re: (update) I screwed up now! Exposing the powerhead on a 1970 9.5hp Johnson

The ear that you broke is the bottom of the back half of the engine block.

Attempting to repair make things worse.

Parts of a crankcase are not usually considered interchangeable. You will need to determine if the seal to the midsection will be airtight. You still have six bolts to hold the engine to the midsection, maybe it will be enough if you use a good sealant on the gasket.