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ronnyd8719
12-06-2006, 01:50 AM
I purchased my boat last spring. I got a good deal on the boat and motor. The guy selling it said the motor had problems. I checked the compression and the motor ran well. It is a 16 foot with a mercury 115 and I got it up to 55 mph with gps. After about 3 months the problem showed up. I have a cylinder that was now dead. I am just hoping the powerhead is ok. My father in law was a certified mercury service personal at one time and the motor is a 1986. We took it down and 4 cylinders are perfect, the other to the rings have broken and the piston head and the bottom of the cylinder is scared up. The cylinder walls are perfect minor scratches that we honed out. So it is easy to fix. Now the part that gets me is the arm that advances the timing had been glued back on. I guess they broke it some kind of way. It worked for three months before. I pulled on it and the glue job just came apart. Now I am in a fix. This is what I am trying . I got the stongest epoxy I can find. 4300 lb pull. I have glued it and it is staying. My question is if the glue comes apart while I am at high rpms will this mess up the motor in any way or will it just not run. I don't want to put a piston though the back of the motor or something. Father in law said he thinks it would not do damage, but ask around and get ideas from others.
So if you know what would happen please let me know.

Now to give you my thoughs on certified outboard service men they are charging way to much. I called around to see what it would cost to have a overhaul done. The bottom price was $2000 and he did not want to do the job. That is strange. A business man that is going to make money on a job is refusing work. There are crazys in the world. The next cheaper was $2400.00 That is without the shipping due to it being in another state. So I purchased the repair manual and it gives you all the info step by step. If you have any idea of what a socket and wrench is you can do it yourself with no major problems. You may have to buy a few tools. It will not be many if you are a guy that is handyman and have the normal tools. I have normal tools and above that I purchased a ring compressor/ touque wrench/ and some special wrenches that were 12 point and you may have that. The project cost me $510.00 with the tools/ two pistons/rings/ and gasket set. That is a huge amount of money. I could have done the rebuild 4 times. So if I broke some rings putting them on no big deal I just ordered some more and that is in the $510.00 also. Now if you want to get your boat back on the water in a week pay the $2400.00, but I have more time than money. I think most of us do. I will admit the needle bearing are not the easiest think to work with but you learn how to do it and it is not a problem. I just wanted to let the masses that it is not that hard. Ho yea I took pictures with a digital camera as i went so I would know where everything went. I also bagged and labeled all the parts and bolts for easy replacement. So if you have a workshop so you can leave the project for a time. If you have a older motor it is well worth the try. If you do just mess it up. just purchase a old replacement motor and you are set. But it is worth the knowleague I gained and the knowing that the motor was done right. It gives you great pride to see the fruits of your labor and the thickest of your wallet.HAHA.
Now Please don't forget to answer my question. Will the epoxy work on the timing advance and if it don't will there be a chance that it will screw the motor up if it brakes.
God Bless
And for the non believers
Thanks
Ron

chris_lacey
12-06-2006, 07:14 AM
Ron, if the trigger lever breaks, normally the trigger moves in the direction of crank rotation, which means it retards the timing. This usually is felt immediately as low power/sluggish performance or the engine cutting out. They are not that expensive or hard to change (other than pulling the flywheel). I bought a used one on here in the summer for $25. Why take a chance on getting stranded? I'd change it.

God bless ya back!

ronnyd8719
12-06-2006, 08:31 AM
Thanks chris. What is it call anyway??

4174jm
12-06-2006, 09:55 AM
I Might Have That On A Junk Motor.mine`s Is Around A 90 Model.

chris_lacey
12-06-2006, 10:51 AM
Thanks chris. What is it call anyway??

It's the trigger assembly.

86vintage
12-06-2006, 09:00 PM
Get right in there and do it yourself, I like that in a person.
If your not able to get one for next to free - contact me and I'll make sure you do.
Hope your engine runs great!!
James
86vintagehttp://forums.screamandfly.com/forums/images/icons/icon14.gif

ronnyd8719
12-06-2006, 09:19 PM
Thanks James

I am looking for one now. I did not have any luck so for. I will be able to change that out after I get the powerhead together and all. I will keep in touch.
Thanks a bunch
Ron

86vintage
12-06-2006, 09:19 PM
Inlines are great motors - make sure:
Gas is fresh
Carbs are clean -rebiult-no water
one size bigger on the mains(See Manual)
fuel filter
You should have good fuel flow from pump
new plugs
timing set at a conservitive 21 BTDC
New Impeller - Once a year
Steady water flow out the Pi$$er.
Great info that I have learned from John's and "Screeam And Fly"
And put to use, with great seasons of trouble free runnin!!
The Scream of my V-6, TooK my away from 1500 & 115 hp Inlines.
Thanks - Scream & Fly - Nothing like the Crack of a High Compression
Engine!
Happy Motoring
86vintagehttp://forums.screamandfly.com/forums/images/icons/icon14.gif

ronnyd8719
12-07-2006, 10:26 AM
Thanks for the info. Before I started rebuilding the motor I had very little water coming out of the hole. I changed the impeller and it was the same. What else can I do it I don't have good water flow from the hole. I have a temp. gauge and it would get up to 160 F. It worked well, but did not have good water flow. Please help me out.
Ron

86vintage
12-07-2006, 11:05 AM
The plastic tube above the impeler housing needs to be properly mated to the copper tube that feeds your power head, Also the outlet from the top of the cylinders to the outlet plastic connection at the lower pan all need to be clear, check to make sure non have dirt or obstructions. People have complained the hole at the outlet ID is to small and clogs easily. People have made them larger but you will lose water pressure.
I believe in water pressure guages 1-5 psi at idle and 5-8 psi at 3,000 and above.
Good luck
James
86vintagehttp://forums.screamandfly.com/forums/images/icons/icon14.gif

j_martin
12-07-2006, 01:06 PM
2 things usually fry the pistons like that.
Not enough water
Not enough gas
Be sure the water works work good before you run it much.

I haven't fried the v6 yet, but I've has some fuel problems. I'm going to figure out how to put a low pressure fuel sensor into the alarm system without going nuts, just so I don't accidentally kill it.

Good luck on the project.
John