1985 9.9 HP Upper exhaust housing mount replacement?

[crackedglass]

I picked up a pair of nice used 1985 9.9 HP Evinrude motors today, the one, which runs great, has all sorts of slop in the upper mounts, the other is super tight, but has a seized power head. Both are identical model motors.

How much hassle would swapping these be?
I take it pulling the power head is the easiest method?
I will already have the lower unit off for a new water pump impeller, so the drive shaft will be out of the way the shift rod will be disconnected.
I've not dealt with one of these newer motors yet, do I pull the power head or can I separate only the exhaust housing?

I'm guessing its a nasty job because two dealers told me that the cost of fixing them wouldn't be worth it for such old motors. It sounded to me like they didn't want or need the work.

The guy that had them said he's got the factory shop manual someplace, but he's got to dig for it a bit.
So I don't want to buy one just yet.
I ran the motor the other day on my boat, it runs great, it just flops around too much up top.

Any advise?

 

[Rick.]

Re: 1985 9.9 HP Upper exhaust housing mount replacement?

http://shop2.evinrude.com/ext/index.aspx?s1=47fd8f7d82a6b9669c689f0818b20cee
Hi there. Have a look at the parts break down for your motors. I don't see and am unaware of any mounts as in say the older 9.5's. It looks like you could just tighten up the bolts to the power head if that is what is loose. I got a kick out of your comment about you not used to working on these newer motors. They are 1985's for crying out loud. Very funny to me anyway. Mine are all older than 85 but I never thought of an 85 as newer. Looks like you will undo the bolts from the midsection and then you will have access to the exhaust housing. At that point you can tighten the exhaust housing up or remove it from the power head. You'll need some gaskets. Have a look at this for all you ever needed to know about the 'newer' 9.9 Evinrudes. It's a must read. Good luck to you. Rick.
http://www.sschapterpsa.com/ramblings/OMC/OMC info.htm

 

[crackedglass]

Re: 1985 9.9 HP Upper exhaust housing mount replacement?

I guess I just think of anything after say around 1984 as late model, I sort of class outboards in groups for some reason, pre-1968, electric shift (1968 to 1973), 1974 to 1977, Hydro mechanical shift motors, then the 1978 to 1983 motors. Anything after say 1993 or so is generally too new to afford so I don't bother much with those. I do try to stick with mechanical shift motors without points ignition but I do have two really clean 9.5 HP motors and a mint early 6 hp from about 1971.

The 9.9 has all those modern features like through the prop exhaust, electronic ignition, and the ability to charge a battery. Of course, it's that motor which seems to always need the most attention. My 9.5s both always start and run with no problem and have never had bushings or mounts changed. In fact, both probably still have their original props.

 

[tashasdaddy]

Re: 1985 9.9 HP Upper exhaust housing mount replacement?

order and OEM serivce manual here: http://www.outboardbooks.com/ or go to ebay, and look up searayman13, great source for OEM manuals also.

 

[crackedglass]

Re: 1985 9.9 HP Upper exhaust housing mount replacement?

The motor came with a factory manual, but the old owner is still digging for it. He said he'd drop it off next week when he gets up this way.

I've got an OEM manual for a 1978, which don't look much different, but it says nothing about just changing out the upper mounts. I know I have to pull the mid section from the power head, but was wondering if it's just a matter of undoing the lower bolts that I can see, and pulling the lower to get the shift rod and driveshaft out of the way or is there more to it. It looks to me like I can pull the mid section of the pan and just drop it down, or lift that whole upper assembly away?