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  1983 SPORT 13: Johnson 35-HP Mounting With Clamps Which Are Useless

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Author Topic:   1983 SPORT 13: Johnson 35-HP Mounting With Clamps Which Are Useless
ofmiceandmenemsha posted 06-30-2011 08:50 AM ET (US)   Profile for ofmiceandmenemsha   Send Email to ofmiceandmenemsha  
[I] am restoring a 1983 SPORT 13 and am having [concern or questions or problems] mounting the 1984 Johnson 35. The engine mounts with clamps, which pass through a bracket on the front of the outboard. The threads in those clamps are completely useless, which doesn't allow the clamps to be tightened down. What are my options here? Anyone experience this?
Binkster posted 06-30-2011 09:00 AM ET (US)     Profile for Binkster  Send Email to Binkster     
Are the screws stripped or are the threads on the bracket stripped? Log into the AOMCI (Antique Outboard Motor Club) site and post a want on the Ask A Member forum. There are countless numbers of those outboards around, and you can find good screws or a good bracket. Or maybe run a tap through your stripped bracket. As you know there are only 2 provisions for bolts in the bracket, so you need to rely on the screws.

http://www.aomci.org/

ofmiceandmenemsha posted 06-30-2011 09:53 AM ET (US)     Profile for ofmiceandmenemsha  Send Email to ofmiceandmenemsha     
[T]he threads on the bracket are stripped. [T]hanks for the quick answer. [I] will head over there and see what [I] can find.
Whalrman posted 06-30-2011 03:50 PM ET (US)     Profile for Whalrman  Send Email to Whalrman     
Hi, try a heli-coil kit, which is a thread rebuilding system.
acseatsri posted 06-30-2011 06:23 PM ET (US)     Profile for acseatsri  Send Email to acseatsri     
By far the least expensive and least labor-intensive way to go [is a helicoil kit].
contender posted 06-30-2011 06:41 PM ET (US)     Profile for contender  Send Email to contender     
Can the engine be bolted through the transom?
Tohsgib posted 07-01-2011 03:12 PM ET (US)     Profile for Tohsgib  Send Email to Tohsgib     
There are only two small bolts to mount through the transom, you need the clamps or a load of 5200.
jimh posted 07-01-2011 04:14 PM ET (US)     Profile for jimh  Send Email to jimh     
Refurbish the clamps.
dowdhh posted 07-01-2011 09:26 PM ET (US)     Profile for dowdhh  Send Email to dowdhh     
To not take the advice to refurbish the clamps would be dangerous. I remember reading a post describing a hard turn resulting in the motor moving sideways on the transom , strong clamps and through bolts are a must. Do it right! Your 35 hp has some serious tourqe for a 13' boat.
Tom W Clark posted 07-01-2011 09:43 PM ET (US)     Profile for Tom W Clark  Send Email to Tom W Clark     
Fellas -- The essence of the query is: "How to refurbish the clamps?"

Offering the advice of "Refurbish the clamps" is not particularly helpful.

Helicoil repair, drill oversize and re-tap or replace the clamps are the three options I see. Only the later is really correct, though I suspect any of those three techniques would, in fact, work.

jimh posted 07-01-2011 09:52 PM ET (US)     Profile for jimh  Send Email to jimh     
There are probably a lot of 1983 motors made by Evinrude that don't run any more, and you ought to be able to find an Evinrude engine bone yard where you could get the casting you need from a dead engine at very moderate coast. But I don't see any option other than refurbishing the clamps. Exactly how you decide to do that I will leave up to you and Tom to hash out.
contender posted 07-01-2011 10:13 PM ET (US)     Profile for contender  Send Email to contender     
Jim is correct: Check ebay for a swivel bracket for that engine, weld the two clamp holes and re-drill. Or drill a larger size and fabricate your own end for the clamp.
dowdhh posted 07-01-2011 10:16 PM ET (US)     Profile for dowdhh  Send Email to dowdhh     
Tom, I have always respected you responses to posts as someone with much more knowledge then me. Sorry if my post seemed pointless to you. I was just thinking about safety. How could that not be helpfull?
jimh posted 07-01-2011 10:36 PM ET (US)     Profile for jimh  Send Email to jimh     
Refurbish means to renovate or make like new. This may clear up a few things that have been said.
Tom W Clark posted 07-02-2011 10:55 AM ET (US)     Profile for Tom W Clark  Send Email to Tom W Clark     
How do you guys propose to refurbish motor clamps that are stripped out?
contender posted 07-02-2011 04:28 PM ET (US)     Profile for contender  Send Email to contender     
Refurbish of the motor clamp holes: I would have them welded full/closed, drilled and tapped for the factory size new threads, Purchase a set of new clamps, Sand and paint you would never know if it was done correctly...Just depends how far you want to go with this project....Good luck
Binkster posted 07-02-2011 05:55 PM ET (US)     Profile for Binkster  Send Email to Binkster     
For $250 I`ll sell you a dead 1987 25hp Evinrude. The CLAMPS AND SCREWS ARE IN MARVELOUS SHAPE. Its a short shaft midsection and gearcase, which you can sell and are hard to find. Also many good parts on the powerhead. Good electric starter. All parts interchangeable with your engine. Freshwater engine that blew a head gasket and was never repaired, hence rusted cylinders. Central Florida
goldstem posted 07-05-2011 12:23 PM ET (US)     Profile for goldstem  Send Email to goldstem     
where are you.
I have a midsection from a 25 you can have. I'm near boston.
ofmiceandmenemsha posted 07-05-2011 03:23 PM ET (US)     Profile for ofmiceandmenemsha  Send Email to ofmiceandmenemsha     
Thank you everyone for the tips, pointers and ideas.

As of right now, I am in another bind. I have found a suitable replacement stern bracket for the boat. When trying to remove the old bracket currently on the motor, I am having trouble removing the tilt lock pin (part 68 on the following website: http://www.boats.net/parts/search/BRP/JOHNSON/1981/J35ELCIG/ EXHAUST%20HOUSING/parts.html )

Until that comes off, I will be unable to perform a helicoil or replace the bracket. I have tried almost everything i can find to loosen the bolt. It seems that when I apply the torque, teh head rotates slightly, but the bolt is frozen. I am afraid I am going to shear it off, then I will be in even more trouble.

On a happier note, the new interior and rub rail have been installed. She looks like a Whaler again.

Tohsgib posted 07-05-2011 03:40 PM ET (US)     Profile for Tohsgib  Send Email to Tohsgib     
Why not shear it off and put in a new bolt?
Tohsgib posted 07-05-2011 03:40 PM ET (US)     Profile for Tohsgib  Send Email to Tohsgib     
Have you tried heat?
ofmiceandmenemsha posted 07-05-2011 04:12 PM ET (US)     Profile for ofmiceandmenemsha  Send Email to ofmiceandmenemsha     
If I shear the top of the bold, how do i get the rest out?

Heat, no... I will try that tonight.

Tohsgib posted 07-05-2011 05:06 PM ET (US)     Profile for Tohsgib  Send Email to Tohsgib     
Without looking at it I can't tell you. That piiece looks like the one that holds the engine up when tilted...worse case scenerio is you live with a wooden block from now on or buy a CMC PTnT unit.
ofmiceandmenemsha posted 07-05-2011 07:48 PM ET (US)     Profile for ofmiceandmenemsha  Send Email to ofmiceandmenemsha     
Success. Muscle, a few prayers, PB Blaster, more praying and some cursed words seemed to do the trick.

Thank you to all who helped.

S

Tohsgib posted 07-05-2011 07:49 PM ET (US)     Profile for Tohsgib  Send Email to Tohsgib     
I just replied to your e-mail which basically said heat and some prayers with some PB Blaster thrown in...funny.

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