OMC Cobra Stern Drive weight?

8

86Bonanza

Cadet
Joined
Mar 9, 2007
Messages
11
Hey all. I have a bad seal on my u-joint bellows at the pivot assembly. From reading my clymer manual, it seems I will have to remove the whole stern drive from the pivot assembly down. The book recommends having an engine hoist, but I don't have access to one. Does anyone knoe if two guys could safely remove the unit without a hoist?

Thanks.
Ben
 
J

johnbo

Petty Officer 2nd Class
Joined
Mar 19, 2006
Messages
165
Re: OMC Cobra Stern Drive weight?

Hi,

Easy with two people. I helped my buddy do his. We built a stand out of 2x4's and it was really easy. Total weight is under a 100 lbs, probably less than 80. The stand makes it easier and requires less wrestling.

Oh yeah and before others beat me to it, find a real OMC manual. Ebay has them. The Clymer is wrong in a lot of places, to put it mildly. It makes a good thing to cushion the outdrive skeg from hitting the floor.

Later,

johnbo
 
Gary H NC

Gary H NC

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Dec 1, 2005
Messages
8,972
Re: OMC Cobra Stern Drive weight?

Yes,removed mine myself,no hoist.2 people can do it no problem. Have something made up to set the drive in.
I built a stand out of 2x4's with a strap to hold the drive in place while i worked on it.
You really need to pull the drive and have a pressure test done.
Did you have water in the gear oil?
Or is it a bad u-joint bellows?
 
Gary H NC

Gary H NC

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Re: OMC Cobra Stern Drive weight?

sorry johnbo,we were posting at the same time...8)
 
8

86Bonanza

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Joined
Mar 9, 2007
Messages
11
Re: OMC Cobra Stern Drive weight?

Thanks guys. I'll give it a go myself. I havent checked my gear oil yet, hopefully the water was just leaking into the boat through the bellows,and didn't ruin anything else. It just happend a couple days ago, and I got it drained pretty quick. I'll also look into a OMC manual. How much do they run?
 
bruceb58

bruceb58

Supreme Mariner
Joined
Mar 5, 2006
Messages
30,493
Re: OMC Cobra Stern Drive weight?

Check your gimbal bearing and u-joints if you got water in your bellows.
 
Gary H NC

Gary H NC

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8,972
Re: OMC Cobra Stern Drive weight?

Expect to pay 50 or more for an original manual.
WELL WORTH EVERY PENNY!!
i have a 86 version manual if you can't find one...
 
8

86Bonanza

Cadet
Joined
Mar 9, 2007
Messages
11
Re: OMC Cobra Stern Drive weight?

Thanks. for the info. I just removed the stern drive yesterday, it really isn'y to heavy. I did it alone and had no problems.
 
Lyndy

Lyndy

Chief Petty Officer
Joined
Oct 15, 2006
Messages
437
Re: OMC Cobra Stern Drive weight?

I pulled my Stringer by myself with the aid of a on the job built stand. Just do not know yet whether I can reverse the operation by myself. Will soon know.
 
Gary H NC

Gary H NC

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8,972
Re: OMC Cobra Stern Drive weight?

Putting it back on is much easier with 2 people.Buy your neighbor a beer and have him give you a hand..8)
 
R

Rob454

Chief Petty Officer
Joined
Oct 9, 2005
Messages
508
Re: OMC Cobra Stern Drive weight?

Its easy to pull the drive. I do it by myself. Dont forget to check the gimball bearing and u joints. Make sure you grease them up. If the gimball bearing is rusted ( if water is leaking it most likely is) youll need to replace it. its abotu 50$ and you will need a three prong bearing puller. i got one for 30$. the bearing can be put back in by using a alluminum punch and tap it on the sides evenly all the way around if you dont have a bearing installation tool. Youll also need to realign the bearing to the output shaft of the motor or youll never get the outdrive to go back in. youll need a special tool for that. i borrowed one from a buddy who is a mechanic and I took measurements and if someone can make me one out of alluminum Ill gladly pay for it.
Rob
 
J

jason32038

Chief Petty Officer
Joined
May 25, 2009
Messages
555
Re: OMC Cobra Stern Drive weight?

After you get the stern back on is the best time to lube everything up. No need to really prelube anything as there is a nipple on the right side that will do it all for you. Plus prelubing is very messy and will make your job a lot harder.
 
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