pulling a stringer drive

angie1015

Petty Officer 3rd Class
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Aug 21, 2006
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83
I just bought a1982 larson with 5.0 liter and a stringer drive. it needs a rebuild on the motorI know everyone one this board told me not to get this boat cause of the drive but I already had a deposit down and I didnt feel like loosing it. so now i have it. couple questions..do i have to to pull the drive to pull the motor out? I am assuming so.. i have pulled merc drives off before and its easy. how do I pull the stringer drive if needed?
 

Boomyal

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Aug 16, 2003
Messages
12,072
Re: pulling a stringer drive

The answer is no! You do not need to pull the drive to pull the motor. What you may want to do is support the drive because every thing will be hanging off of the rear assembly mounts (intermediate housing mounts) and the transom boot.

If your stringers are compromised, this would cause the intermediate mount bolts to try to pull up out of the stringer.

Otherwise, unbolt the motor from the intermediate housing, disconnect the manifold boots and have at it. This is no black anchor. Inspite of some of OMC's shortcomings it was the better unit.
 

angie1015

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Aug 21, 2006
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83
Re: pulling a stringer drive

thank you that was very useful information.
 

aerwin

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Mar 28, 2002
Messages
192
Re: pulling a stringer drive

I think I would have to on mine just because its almost imposible to get to the back bolts on the intermediate unit due to the boat construction, I might be wrong, I have looked in that area and its real tight. In my case it might be easier to pull drive then pull the engine/ intermediate as one unit. I have pulled the drive a few times and is actually pretty easy, pulling the shift cable from the shift box and putting it all back together isnt all that hard either, whatever you are doing to your engine/drive, get the manual it makes things alot easier
 

Boomyal

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Re: pulling a stringer drive

aerwin said:
I think I would have to on mine just because its almost imposible to get to the back bolts on the intermediate unit due to the boat construction, I might be wrong, I have looked in that area and its real tight. In my case it might be easier to pull drive then pull the engine/ intermediate as one unit. I have pulled the drive a few times and is actually pretty easy, pulling the shift cable from the shift box and putting it all back together isnt all that hard either, whatever you are doing to your engine/drive, get the manual it makes things alot easier

aerwin, don't forget the pictures.:p
 

aerwin

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Mar 28, 2002
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192
Re: pulling a stringer drive

I will get the picts, havin to run to sacto fri and tomorow and going to sierra summit (china Peak) monday for a little snowboarding, I got get the boat out to fix a flat tuesday and Will get the picts then, hey Boomyal, does the 79' have the 2 wire tilt motor or three wire, I 'ts been 4 years since I changed the last one and I cant remember
 

Boomyal

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Aug 16, 2003
Messages
12,072
Re: pulling a stringer drive

aerwin said:
I will get the picts, havin to run to sacto fri and tomorow and going to sierra summit (china Peak) monday for a little snowboarding, I got get the boat out to fix a flat tuesday and Will get the picts then, hey Boomyal, does the 79' have the 2 wire tilt motor or three wire, I 'ts been 4 years since I changed the last one and I cant remember

Not sure aerwin. I think they did not go to the three wire until the full mechanical shift drive (about 80 or 81) but I am not positive.

My setup is a '79 hydro-mechanical, like yours, but still has the '75 electric shift intermediate housing. It, of course, used the two wire tilt motor.

Why are you having to change the motor? Mine is still the original from 1975. If you have the two wire, I can give you some hints to keep it alive.
 

aerwin

Petty Officer 2nd Class
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Mar 28, 2002
Messages
192
Re: pulling a stringer drive

I think I have the 3 wire, had a chance to get a new one cheap for a spare but its a 2 wire. always on the scout for parts. so they should last quite a long time then huh?
Previous owners didn't take care of boat that good, but when I changed it last, it was the original trim motor, I am also looking for some smart tabs like you suggested, thanks
 

Boomyal

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Aug 16, 2003
Messages
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Re: pulling a stringer drive

aerwin said:
I think I have the 3 wire, had a chance to get a new one cheap for a spare but its a 2 wire. always on the scout for parts. so they should last quite a long time then huh?
Previous owners didn't take care of boat that good, but when I changed it last, it was the original trim motor, I am also looking for some smart tabs like you suggested, thanks

You have a PM aerwin!
 

Lyndy

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Joined
Oct 15, 2006
Messages
437
Re: pulling a stringer drive

aerwin said:
boy i'm stupid whats a PM?


Saw that also Aerwin. The only thing I can think of would be Private Message. If that is it, then look under the User Area Tab at the top of the page.
 

Lyndy

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Joined
Oct 15, 2006
Messages
437
Re: pulling a stringer drive

Lyndy said:
aerwin said:
boy i'm stupid whats a PM?


Saw that also Aerwin. The only thing I can think of would be Private Message. If that is it, then look under the User Area Tab at the top of the page.

Also, When reading a message right below the Reply+Quote button on the left near the bottom is a drop down menu. One of the options is PM User. You should be able a message to an individual member privately. Have not used it on this board, but have on others. Pretty neat if you want to ask a question without everyone else see it.
 

Boomyal

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Re: pulling a stringer drive

aerwin said:
boy i'm stupid whats a PM?

go to the top right column on this page and click on "my private messages"
 

angie1015

Petty Officer 3rd Class
Joined
Aug 21, 2006
Messages
83
Re: pulling a stringer drive

hey thanks for all your help. does anyone know where I can get a manual for this setup. I am going to be pulling the motor sometime in the next couple weeks and I dont want to take any chances. i am going to try to pull it without taking the drive off. i have had many merc's in my life but this stringer is very different. i regret buying this boat already. does anyone see a problem replacing this motor with a 350 instead of the old 305. I am hoping to maybe get a few more horses and mph out of it. actually i have never even driven the boat but i was told that it would prob only hit 25mph if i was lucky. does that sound right? its a 25 foot larson DC 1982 with a 305 and a stringer drive. 4 barrell carb.. how many horses is it putting out now? 230 maybe. Could i make this thing faster by adding 350 heads instead??? any ideas on how to get this boat up over 30 mph without destrying this stringer drive..
 

THE BEEF

Chief Petty Officer
Joined
Jun 11, 2005
Messages
432
Re: pulling a stringer drive

Hey angie1015
I have a 800 stringer on a 1981 22'Skiff Craft all wood boat with a 305.
I get 32 knots at WOT. I'm happy with it.
If you need a manual I have a spare copy of the factory manual.
I'll let you use it, even copy it if you make sure I get it back. PM me for info.
Beef
 

Gary H NC

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Joined
Dec 1, 2005
Messages
8,972
Re: pulling a stringer drive

If you need to buy a factory manual look for a guy on ebay called Searayman13....He has a building full of OMC manuals...good guy to deal with also..
 

DukesFin

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Joined
Oct 12, 2005
Messages
500
Re: pulling a stringer drive

Tip: If you are going to try to pull the motor without pulling the drive, tilt the motor up in the front to help you clear the driveshaft that comes out of the intermediate housing into the flywheel. It might make the upper motor bolts harder to get to but might save you a headache of removing all bolts only to find you don't have enough clearance on the front end to pull the motor off of the intermediate housing.

Do not (I think I read a reply that eluded to this earlier in the string), DO NOT try to pull the motor AND intermediate housing off as one "unit"... If you carry that thought through, you will see the horrendous problems you will be facing if you do so.

Don't be upset with the stringer (maybe the boat) but I think if you've got a good operating stringer drive, you will be pleased and properly maintained, you will find enjoyment for quite a time out of her.

Good luck!
 

angie1015

Petty Officer 3rd Class
Joined
Aug 21, 2006
Messages
83
Re: pulling a stringer drive

THE said:
Hey angie1015
I have a 800 stringer on a 1981 22'Skiff Craft all wood boat with a 305.
I get 32 knots at WOT. I'm happy with it.
If you need a manual I have a spare copy of the factory manual.
I'll let you use it, even copy it if you make sure I get it back. PM me for info.
Beef

wow that would be great thanks. I am new to this website. my email is jason9080@hotmail.com I am not sure how to pm you. do you think that this drive could handle a little bigger motor or should i just rebuid this one?
 

whywhyzed

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Joined
Feb 1, 2005
Messages
1,871
Re: pulling a stringer drive

DukesFin said:
DO NOT try to pull the motor AND intermediate housing off as one "unit"... If you carry that thought through, you will see the horrendous problems you will be facing if you do so.

not really an issue if Angie is leaving the drive on, but I'm curious....
That's how I have always done it. Drive off, transom boot off, lag bolts out and lift....then I remove the steering cable while it's hanging on the hoist at eye level, then I split the eng/intermediate on the bench....
 

angie1015

Petty Officer 3rd Class
Joined
Aug 21, 2006
Messages
83
Re: pulling a stringer drive

Boomyal said:
The answer is no! You do not need to pull the drive to pull the motor. What you may want to do is support the drive because every thing will be hanging off of the rear assembly mounts (intermediate housing mounts) and the transom boot.

If your stringers are compromised, this would cause the intermediate mount bolts to try to pull up out of the stringer.

Otherwise, unbolt the motor from the intermediate housing, disconnect the manifold boots and have at it. This is no black anchor. Inspite of some of OMC's shortcomings it was the better unit.


thanks again for your help. I pulled the heads off the motor hoping maybe i can salvage the block and save me some time but i had no luck. the damn block is cracked.. anyway tomorrow i will be pulling the motor. my question how do i support the drive and do i need to? on another note i have about 2 feet of space to slide the motor away from the drive before i lift it. its a old larson with a ton of room in the engine compartment. with the top half of the motor off it makes it real easy to get the all the bolts and disconnect the motor from the housing. so all i have is a few bolts from the housing...... the motor mount bolts and from there i should be able to pull the motor correct???again i have about 2 feet from the front pully to slide the motor fowards before i lift it. Is there anything else i should know before i start this project tomorrow?????????? thank you in advance....
 
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