1982 mercury 115 wouldnt start

[borisboga]

Hi all

I have this mate that I go fishing with. His boat has 1982 mercury 115hp 6cyl outboard. For several reasons or excuses I should say, he left the boat there for a year without even looking at it.
Anyway... the other day we tried to start the motor but it wouldnt turn.
I know we should go to a mechanic but just wondering is there a way to turn the motor (like its locked, the shaft wouldnt move)
Because he never gets out without me (and because he cant afford it) I offered him to pay the expenses with the motor. Just wanted to know what should I expect (i mean the cost wise...) I have a good mechanic knowlodge with the cars so I'll do whatever I can to it then I'll go to a mechanic.
I'm researching at the moment, any info or link would be great.

Thanks

[storms72]

Baris, do a google search- type in as search the thread title; mercury 115hp 1982 wont start-or try-mercury 115hp 1982 seized..

You will get pages and pages of info from others with the same problem and will find a great place to start. Could search mercury forums in the USA-tons of great advice there.

Sounds to me like the motor has seized-not a great sign mate but may be fixable....Were the batteries charged when you tried to start it???

Good luck mate
Jason

[Dog Catcher]

Depends what you mean by this remark

Anyway... the other day we tried to start the motor but it wouldnt turn.


Your description is very vague & could mean a few things example

Did the motor get power ?
If so did you hearthe solenoid clicking in ?

I'd be looking @ those 2 things 1st it's an old motor & has been sitting for a long time unused many things could be wrong with it.

You can by pass the ignition system & give power direct to the starter motor from the battery to try but if the solenoid is stuck it still wont start easy to tell you'll hear it clicking I'm only guessing not seeing what is happeng but thats where I'd be looking 1st.

Another thing you can try again I'm not sure what you meant by what I've quoted, but being a old motor the compression wont be that high & you can try pull starting the motor with a cord prob wont start but it will indicate if motor is free.

[borisboga]

Did the motor get power ?
If so did you hearthe solenoid clicking in ?


Sorry about my bad english but english is not my mother language so i'm doing what i can.
What I mean is engine is not free. its not a battery or starter motor problem.
I probably can free it up by the help some 50/50 oil and 40w but i 'm not sure.
Thanks for your reply mate. and..
Did the motor get power ? Yes
If so did you hearthe solenoid clicking in ? Yes. The starter motor is ok, it wants to go but engine is not free.

Baris, do a google search- type in as search the thread title; mercury 115hp 1982 wont start-or try-mercury 115hp 1982 seized..


I've been in the forums in US jason and been searching the google. I havent tried the word seized in my searches though. I'll try it.
Thanks mate.

[Dog Catcher]

It's not your Ingrish thats got me confucious boris ! :banghead:

It's your explanation of accounts they dont make sense like this one

I probably can free it up by the help some 50/50 oil and 40w but i 'm not sure.

How do you plan on doing that ??????????

All motors give the impression they are locked up in your case you have 6 cylinders to try moving not to mention the crank & other moving parts.

You still did not exolain how you came to the conclusion that the starter motor is working esp after reading this

Yes. The starter motor is ok, it wants to go but engine is not free.

To me it sounds like your starter motor is NOT WORKING more like it it's sh*ting itself, sounds like tha armiture is not travelling up it's full stroke to engage the fry reel, you said the Merc has not been used for some time.

Like I said earlier you can attempt to pull start the motor @ least this will prove to you it's not ceased if anything or you can put the motor into gear & turn the prop by hand again this will show you the motor is not ceased.

[nimrod]

Boris. As a guess i would say the last time the engine was used some 12 months ago it got a little moisture through the side jackets and being left over 12 months the cylinders have lock the pistons, Hense motor is seized.
Where are you or more precise where is the motor located and when would be an appropiate time for me to come and free it up for you?.
Or you could try yourself, Firstly take out all spark plugs, then try and turn it manually if still stuck you need a huge socket and a large leverage bar, place the socket on the large nut in the middle of the flywheel and see if you can budge it, spray wd40, rp7 or equivelant down each cylinder leave for a couple of hours and try again.
If it starts to turn spray more stuff and keep turning by hand, once reasonably free connect battery direct to starter motor and turn with plugs still out and spray heaps of wd40 etc down the bores as it is spinning over.
If this works ok keep spinning over for a while then replace plugs, connect fuel etc and see if she starts.
It will blow heaps of smoke at first but once the rings free up it should settle down.

Frank

[Haji]

Now that is what I call clear and consise instructions. Good one Frank and good for you offering to go help to free it up.

[borisboga]

How do you plan on doing that ??????????


Exactly how frank explained.


Like I said earlier you can attempt to pull start the motor @ least this will prove to you it's not ceased if anything or you can put the motor into gear & turn the prop by hand again this will show you the motor is not ceased.

that was the first thing I tried mate.

[borisboga]

Boris. As a guess i would say the last time the engine was used some 12 months ago it got a little moisture through the side jackets and being left over 12 months the cylinders have lock the pistons, Hense motor is seized.
Where are you or more precise where is the motor located and when would be an appropiate time for me to come and free it up for you?.
Or you could try yourself, Firstly take out all spark plugs, then try and turn it manually if still stuck you need a huge socket and a large leverage bar, place the socket on the large nut in the middle of the flywheel and see if you can budge it, spray wd40, rp7 or equivelant down each cylinder leave for a couple of hours and try again.
If it starts to turn spray more stuff and keep turning by hand, once reasonably free connect battery direct to starter motor and turn with plugs still out and spray heaps of wd40 etc down the bores as it is spinning over.
If this works ok keep spinning over for a while then replace plugs, connect fuel etc and see if she starts.
It will blow heaps of smoke at first but once the rings free up it should settle down.

Frank

Hi Frank.

Mate today I put some 2 stroke oil and sprayed some wd40 to each cylinder. I have a socket big enough to put on. I tried, no movement. I didnt push it too hard, i dont want to break anything. and if i push it anticlockwise the nut comes loose.

The boat is at my home, merrylands. 10 min away from you mate if you wanna have a look it could be anytime (not tomorrow between 7:00-17:00) Its very nice of yyou to offer that. appreciated mate.

Thanks

[borisboga]

so frank u reckon I should go out and push it harder?

[nimrod]

Boris. Yes mate. If you have to put a 2metre length of waterpipe over your breaker bar to give you more leverage. If it doesn't budge after that then it's never going to. You will break the socket before you do any more damage to the motor.
If that don't move it you will have to remove the heads, and I bet you break the bolts before they come undone.

I have turned a boat completely around in it's own circle trying to free a motor, but I beat it in the end.
Frank

[borisboga]

Boris. Yes mate. If you have to put a 2metre length of waterpipe over your breaker bar to give you more leverage. If it doesn't budge after that then it's never going to. You will break the socket before you do any more damage to the motor.
If that don't move it you will have to remove the heads, and I bet you break the bolts before they come undone.

I have turned a boat completely around in it's own circle trying to free a motor, but I beat it in the end.
Frank

Thanks Frank.

Got the idea.

I've put some more WD40 half an hour ago. I'll give it a go if the rain stops.

Frank mate (or anyone) one more question.

This mate of mine offered me to buy the boat of him. The hull is in reasonable condition. caribien safari 173. It has a really deep vee (24 degrees). "the secondhand boat workshop book" says the price should be between $6.000 and $12.000 depending on the condition. What do you think? He needs some money and i want to help him as well. The floor and the transom looks and feels solid.
Thanks mate

[Dog Catcher]

boris like I said earlier I can only suggest things by the info given & I always start off with the simple things.

I dont go directly to worst case senario & as you didn't say that the starter locked in nor did you say it was free spinnining I gave you a point to look @.

A motor shouldn't lock up after not being used for twelve months & if it has then I wouldn't be looking @ buying it

[borisboga]

boris like I said earlier I can only suggest things by the info given & I always start off with the simple things.

I dont go directly to worst case senario & as you didn't say that the starter locked in nor did you say it was free spinnining I gave you a point to look @.

A motor shouldn't lock up after not being used for twelve months & if it has then I wouldn't be looking @ buying it

Hi

Even if i spend $4000 on the motor it will still cost me $5500. and I will be helping out a mate
What do you think?

[Dog Catcher]

So he's giving you the boat, trailer & motor for $1,500 ?????????????????????

[nimrod]

Boris. I would be looking at the motor as being worth as much as you could get as a trade in, or what it would be worth as a non goer on ebay.
The method I have given you for freeing up the motor is merely to get it going again.
I can't say if it would be reliable after it being seized.
Is the steering and controls still opperating?.
Frank

[borisboga]

So he's giving you the boat, trailer & motor for $1,500 ?????????????????????

yes mate,
they're not registered though

[borisboga]

Boris. I would be looking at the motor as being worth as much as you could get as a trade in, or what it would be worth as a non goer on ebay.
The method I have given you for freeing up the motor is merely to get it going again.
I can't say if it would be reliable after it being seized.
Is the steering and controls still opperating?.
Frank

Frank,
The steering and the other conrols work. It has an old Eagle Fish ID fishfinder, navlights, hourmeter, voltmeter, etc they all work. it has no seats or carpets though.

[nimrod]

No seats or carpet.
Sounds like a proper fishing boat:pottytrain1: .
I have come across some complications with the boat I am preparing for HSV.
Frank

[Dog Catcher]

At $1500 it would be worth buying even if the motor was ceased but I wouldn't try rebuilding it I'd budget to buy a newer motor

[borisboga]

At $1500 it would be worth buying even if the motor was ceased but I wouldn't try rebuilding it I'd budget to buy a newer motor
I had a look at trading post, i am looking for around $6500 for a newer engine. well over my budget :frown:

[Dog Catcher]

Well cant help you with your budget that's your decision not mine

I do however have my 2 old 85 hp CV Yamaha's sitting around made the mostake of holding on to them for a mate & haven't bothered advertising them.

From memory they about 12 years old done about 500 jrs each but in those 11 years prob about 6 or so years they weren't used as I had my bigger motrf game boat.

Even though they've done 500 hrs 400 of those hrs had the motors sitting on around 2000 revs I mainly trolled pulling lures.

I will be putting them up for sale asking $3,000 each for them

12 months ago I pulled them apart powerheads off etc replaced water/exhaust plates, redid carbs, gearbox's etc etc then walked into a mates shop & there were a pair of 115 hp 4 bangers sitting there.

Well I couldn't help myself & thats why the 85's came off the boat else they'd still be there.

I ended up getting a new binicle control box so the 85's are complete with tacho's not sure about the trim gauges think I reused them along with the hr meters

[borisboga]

Well cant help you with your budget that's your decision not mine

I do however have my 2 old 85 hp CV Yamaha's sitting around made the mostake of holding on to them for a mate & haven't bothered advertising them.

From memory they about 12 years old done about 500 jrs each but in those 11 years prob about 6 or so years they weren't used as I had my bigger motrf game boat.

Even though they've done 500 hrs 400 of those hrs had the motors sitting on around 2000 revs I mainly trolled pulling lures.

I will be putting them up for sale asking $3,000 each for them

12 months ago I pulled them apart powerheads off etc replaced water/exhaust plates, redid carbs, gearbox's etc etc then walked into a mates shop & there were a pair of 115 hp 4 bangers sitting there.

Well I couldn't help myself & thats why the 85's came off the boat else they'd still be there.

I ended up getting a new binicle control box so the 85's are complete with tacho's not sure about the trim gauges think I reused them along with the hr meters
r u gonna sell them seperatly?

[Dog Catcher]

Yeah think my brother wants one of them his missus rang & said she wanted to buy one of them for him as an aniversary present

[Haji]

Sounds like a good deal to me. They are good motors and it sounds as though they have been well looked after by Dog.

I recently bought a 1999 90HP Mariner with 200 hours up for $6,000.00 and thought I got a good deal.

Good Luck

[Dog Catcher]

Price all boils down to age of motors the mariner is newr than my old yams.

And thats the reason I said it's not worth doing a rebuild on a motor thats over 20 years old like the merc you could spend $4 k on it & it's still only worth under $2 k after all the work

[borisboga]

Price all boils down to age of motors the mariner is newr than my old yams.

And thats the reason I said it's not worth doing a rebuild on a motor thats over 20 years old like the merc you could spend $4 k on it & it's still only worth under $2 k after all the work

you are right.

I want to know whats wrong with the engine first (probably its gone) and then I am up for a new engine...

Mate what do you reckon? 85 hp will be underpower? Because the book says recomended hp is 115.

[Dog Catcher]

I want to know whats wrong with the engine first (probably its gone) and then I am up for a new engine...


Dont know haven't seen it & may very well be nothing wrong with it & just your imagination if the motor was working last trip out then there is no reason for it not to be working again & could very well be something minor.

But @ the price your mate is selling it @ I think he knows something he's not telling you, those old mercs had a habit of doing big end bearings & prob the reason motor is ceased if it is.

The reason it prob had the 6 cylinder motor on the boat was because it was also used to ski with a sigle 85 hp should be able to push the boat @ around 25 knots only a guess as I haven't seen the boat.

I had the twin 85's on the back of my 23 ft plate boat & they pushed it along doing 33 knots quite easily & the boat is a hard top as well

[storms72]

Baris.,....HSV-Mick got himself a boat late last week so Franks is back on the market...you should have a chat to him bout it! Geez would be a great combo-DC's Yama-CV 85 and the Steber, perfect size engine for that boat.......500hrs ian't much for a Yama CV-it would be begging for more.....Know commercial guys around hawkesbury area who've put 4 times that on their CV's and they're still running fine...Just have to follow sensible service/maintenance schedule.

[borisboga]

finally i freed the engine. still not as smooth but nearly there, now the crank would make a 4/3 with starter motor. I put some more wd40, will see how it goes tomorrow.

jason mate, i went there paid the guy for the boat, come back and saw your threat :banghead: :banghead: :banghead: . I really liked the franks boat.

Anyway i see how i go with this engine then speak to dc about the yamaha.

[Dog Catcher]

boris dont want to alarm you!

But if you're having that much of a prob getting the bloody thing turning over then a good guess is that the big end bearing is ceased or very close to it.

Like Isaid I start with the most trivial things thats why I suggest your starter motor & in fact if I were you B4 going any further I'd pull it off the outboard & bench test it whilst not under any load that way you can rule it out altogether.

Because to me your crank is either free or it's not in between means there's something amiss.

[borisboga]

boris dont want to alarm you!

But if you're having that much of a prob getting the bloody thing turning over then a good guess is that the big end bearing is ceased or very close to it.

Like Isaid I start with the most trivial things thats why I suggest your starter motor & in fact if I were you B4 going any further I'd pull it off the outboard & bench test it whilst not under any load that way you can rule it out altogether.

Because to me your crank is either free or it's not in between means there's something amiss.

dc mate,

The engine is completely free now, when i turn the key the engine turns so no problem with the starter motor. I bought a new set of plugs, cleaned the fuel tank. Put some more oil through the spark plug holes. Tomorrow after work I'm gonna try starting it.
I'm gonna make a 50:1 fuel mix.
A friend of mine told me to start the engine without water first, like 20-30 sec. He said when i turn the water on if engine stops than its getting water in it.
Also should i check the gearbox oil before starting it or its not necessery at this stage???
What else should i do or check before trying to to start it?
Any recomandations anyone?

Thanks.

[nimrod]

Boris. Your mate might know something I don't know but I wouldn't be running the motor for any minutes without water, ( sorry read you post again and you said seconds ) as it is if it hasn't started for a while the impeller is probable gone brittle and will disintegrate within it's housing. Check that oil is in gearbox, just undo the top breather hole and oil should seep out, if not get a bent straw or something and poke it down the hole and see how low the oil is, If you need to add oil you do it from the lower hole. If you add it through the top hole you will create an air lock.
50/1 mix should be ok make sure it's outboard tcw3 oil.
When/if it starts don't rev it hard. If it does get water in the pots it will stop. Water does not compress.
Frank

[Dog Catcher]

A friend of mine told me to start the engine without water first, like 20-30 sec. He said when i turn the water on if engine stops than its getting water in it.


That's a bit of a Porky !

And I wouldn't recomend it with a motor that's been sitting so long, the moment the motor starts your driveshaft is spinning which in turn is spinning a dry impellor not good !

The thermostat will block any water from cooling block till it's ready to open.

I'd also crank the motor over as well with the spark plugs out just to blow out any crap that may be in the cylinders.

Put the plugs back in & give her a whirl, those old motors will need choke bear that in mind if it's not starting.

And for Gods sake dont do what I see so many do @ the boat ramps Dont REV the sh*t out of the motor.

If it starts just let in warm up on it's own

[borisboga]

And for Gods sake dont do what I see so many do @ the boat ramps Dont REV the sh*t out of the motor.



Offcourse mate, do i sound like an idiot? (well maybe with this questions :biggrin: ) i am not as experienced like you but its not my first boat too.

[Dog Catcher]

nimrod had snuck in while I was replying basically said the same.

As far as reving the motor I had to throw that in cause I've seen it to many times esp when peeps cant get their motors to idle

[borisboga]

well we'll see how it goes tomorrow.

Here is the list I'll do tomorrow
1- fix the gearbox oil, change it if needed.
2- since everything in the engine has been pretty lubricated with 2 stroke oil, i wont be worrying about lubrication, i'll crank it get rid of excess oil and dirt etc.
3- check the carbies, clean them.
4-i've checked the choke, seems like working all right. double check that.
5-mix the fuel-oil 50:1
6-put the hose in
7-turn the water on full
8- turn the key,
9- if it starts, it will smoke heavilly for a while.
10-if it doesnt start, make sure there is enough fuel and air getting into it.
11- if it still doent start go to the mechanic
12-if it starts still go to the mechanic for complete check up.

[borisboga]

there is a saying in Turkish...

it says "if you dont know about something, its not a shame. But if you dont want to learn about it, its a big shame."

[Dog Catcher]

Ek Mek

[borisboga]

Ek Mek
???????????????

[Dog Catcher]

Ewe tell me ??

You're the one who's supp'd 2B Turkish

[borisboga]

Ewe tell me ??

You're the one who's supp'd 2B Turkish

hahahaha..
that was turkish wasnt it... :)
but it should be written as "EKMEK" just one word.
meaning "bread"

Sorry I wasnt expacting that :)