Outboard Lower Unit repair

MQMurphy · Post by **MQMurphy** » Sun May 13, 2007 7:48 am

I'm doing some repair work on my "B" motor - an old ('77) Evinrude 9.9
I need to remove the lower shift rod from my non-functioning lower unit to put into a good lower unit that I just picked up on EBay. My old E'rude is a long shaft - newer lower unit is from a short shaft.

Question is this, specifically:
Does the lower shift rod screw into the shifting lever/yoke ass'y?
Can I remove it by just turning c'clockwise?

I'm looking at a diagram on the Evinrude site - if anyone's got a link to a better source of info, that'd be great. (Or if you can just tell me, better still!)

MQMurphy · Post by **MQMurphy** » Sun May 13, 2007 9:49 am

Never mind - answered that one myself.
Asked while drinking first cup of coffee while still too early to go out and just *try* it.
Answer: yes, they do just thread out.

If anyone has some outboard motor repair stories they'd like to share, I'll keep checking in here today while I put Motor B back together.

I could use some tips on needed repairs for Motor A - an '89 Yamaha 4 stroke whose water pump impeller needs replacing. Took out the bolts holding the lower unit on - can't get LU to separate from body :0(

mfasis · Post by **mfasis** » Mon May 14, 2007 9:33 am

I have gotten a lot of great information on my 9.9 Evinrude from this site.

MQMurphy · Post by **MQMurphy** » Tue May 15, 2007 6:50 am

Thanks, Mark. It looks like there's a wealth of info on that site. Saw a link to another site where someone had posted a series of photos of lower unit removal on a Yamaha. Thanks again.

Summersdawn · Post by **Summersdawn** » Tue May 15, 2007 12:20 pm

I had problems separating the lower unit on my 89 Yamaha 9.9. I am assuming you have the high thrust 4 stroke?

I soaked mine with lots of penetrating oil, and "persauded" it a little with a hammer, tapping down on the anti-cavitation plate. I got it loose, but chipped off a chunk of the plate, which I glued back on with some JB Weld (it was on hand).

I seem to recall that the shift lever has to be in one spot to remove and reinstall the lower unit. Don't remember which spot. Luckily there is only 3 (forward, neutral and reverse), so shouldn't take too long.

Have fun.

MQMurphy · Post by **MQMurphy** » Tue May 15, 2007 1:38 pm

Ahhh - I tried some 'persuading' too, and inflicted some slight trauma to the plate. Stopped before things got too ugly. I'll try the penetrating oil route.
Thanks.

Summersdawn · Post by **Summersdawn** » Wed May 16, 2007 12:26 pm

Does the website tell you which gear to have it in? I don't remember.

MQMurphy · Post by **MQMurphy** » Wed May 16, 2007 1:55 pm

Not sure that it does. I think I saw a mention in some thread that whatever gear position throws the shift rod down (probably forward) will make a connection on the linkage accessible.
The more I realize the importance (Duh!!!) of a reliable motor, I begin to think I might drop it off at the dealer for the repair and a going-over.
I'll still try the mucho penetrating oil approach . . .