Mariner Magnum 40

[Norwegian Viking]

Hi!<br />I plan to by a Mariner Magnum 40, 4 cyl, 2 stroke (1994-95?) from a friend that had given it up. He is not very good with outboards so he decided to by a new one. The engine looks very good, so I have decided to give it a try without using piles of money in a work shop<br />I have no special experience with outboards, but have done some work on car engines. I have not started to work on it yet, but some of you may know where to focus the energy based on the following problem:<br />The engine starts but die immideatly.<br /><br />It is a spark on all spark plugs so my guess is some kind of a fuel problem. All cylinders seems to have good compression, but it have not yet been measured properly. Could it be a total engine failure even though the compression "feels good"?<br />Could it be an ignition problem even though the spark look ok? How do I time the ignition on an outboard? With a timing light?<br />Could anyone give me a short instruction in general terms of where I should start and mybee what I initially should give a more thorough check?<br /><br />Fair winds and following seas to all of you!<br />PM, Commander, Royal Norwegian Navy

 

[Elmer Fudge]

Re: Mariner Magnum 40

Try replacing the diaphrams in the fuel pump,and run it with some fresh gas.if that does'nt do it then clean out the carbs,but check the compression first.

 

[Norwegian Viking]

Re: Mariner Magnum 40

Thanks a lot!<br />Im off duty tuesday morning and if my wife let me, I would start working on the engine the minute I come home.<br />Im sure I need some more advice later and hope that the more experienced outboard mechanics out there will help an amateur to get the engine running.<br />PM

 

[achris]

Re: Mariner Magnum 40

NV,<br /><br />You've got hundreds of us waiting eagerly to help you. All we ask is that you post as much information as possible. With Merc/Mariners one of those important pieces of info is the engine serial number, more important than the year.<br /><br />Good luck and keep us informed,<br /><br />Chris............

 

[Norwegian Viking]

Re: Mariner Magnum 40

Originally posted by achris:<br /> NV,<br /><br />You've got hundreds of us waiting eagerly to help you. All we ask is that you post as much information as possible. With Merc/Mariners one of those important pieces of info is the engine serial number, more important than the year.<br /><br />Good luck and keep us informed,<br /><br />Chris............

 

[Norwegian Viking]

Re: Mariner Magnum 40

Thanks again! One problem is that the label with the serial number is not there anymore. Is it anywhere else I can find the serial number on the engine?<br />Ill keep you posted with more and hopefully accurate information.<br />PM the NV

 

[achris]

Re: Mariner Magnum 40

PM,<br /><br />There is (should be) what looks like a plug on the right hand side of the powerhead. It's about the size of a Euro and is silver in colour. It'll have about 8 digits on it.<br /><br />Chris..........

 

[Norwegian Viking]

Re: Mariner Magnum 40

I dont know what I would have done without you... Normal dealers and workshops dont give a da... about my problems, exept when they can charge me for hundreds of dollars and do nothing. Ill check out the "euro" when I get back home on tuesday.<br />I also need a controlbox with wires for el-start, powertilt and el-choke. Do I need an original control or can I use a Mercury control?<br />PM

 

[achris]

Re: Mariner Magnum 40

Mercury control and Mariner control are exactly the same for that engine. <br /><br />Chris..............

 

[Norwegian Viking]

Re: Mariner Magnum 40

This may sound like a stupid question, but are Mariner and Mercury basicly similar engines?<br />PM

 

[achris]

Re: Mariner Magnum 40

PM,<br /><br />After about 1984 the major difference between Mercury and Mariner was the colour of the paint <br /><br />Chris.............

 

[achris]

Re: Mariner Magnum 40

 

[Norwegian Viking]

Re: Mariner Magnum 40

Ok, Im home at last- 96 hrs at work.<br />First of all the serial number is:<br />9796899, so which year is the engine?<br />I have just had the time to take quick look at the engine.<br />The sparkplugs are old and will be replaced. The 20amp fuse looks bad (corotion)and will be replaced. It looks as the fuelpump got new gaskets. The seperat oiltank has been removed and the oil-lines have been blocked.<br />The fueltank is new and so is the line from the tank to the engine. The bulb is new.The fuelline inside the engine looks old but good. The fuelfilter will be replaced, even though it looks ok.The fuel in the tank will be replaced with fresh fuel.<br />I need to by a new controlbox with cables for gear and throttle, and hook it up to the engine.<br />I will by a new battery. I will go throug every singel wire to se if they are good conected.<br />I would test the spark with a timing light.<br />When Ive done all this, I will come back and post more detailed information on how the engine is doing. Maybee it will work after this???<br /> <br />PM the NV

 

[achris]

Re: Mariner Magnum 40

PM the NV,<br /><br />The serial number indicates it was made in Belgium and is a 1989.<br /><br />Chris............

 

[Norwegian Viking]

Re: Mariner Magnum 40

Thanks achris!<br />I found a i list in swedish http://www.marinshopen.se/ <br />According to this list the 1989 mod are 9570305 - 9585999 and C159200 - C221499 for the 4 cyl Mariner 40 Magnum.<br />My serial nr is 9796859 , and the only thing that macthes is 09793445 - 09831774, which is a 1994. But then again I do not have the zero as the first number.<br /><br />Anyway.. Ive been to the local dealer and bought a brand new Mercury Controlbox for my engine.<br />I think I have control over the cables and wires from the controlbox to the engine, but what about the electrical wires from the battery to the engine?<br />I bought the engine "clean" without anything of the wires and cables. That means I have to connect controlbox, the steering, gear/throttle cabels, battery with wires. I have the battery, but no electrical wires yet. Where do I connect the powersupply?<br />Please help?<br /><br />PM the NV<br />

 

[kentfa]

Re: Mariner Magnum 40

eart to the starter and + to a screw a littel more back on styrboard side!

 

[achris]

Re: Mariner Magnum 40

NEGATIVE!!! DO NOT PUT THE BATTERY LEAD ON THE STARTER!!!!<br /><br />Ok, here's how we're going to do it. I'm going to post a picture of the starboard side of the engine. (if I find one). In the meantime here's the verbals on how it's done.<br /><br />Red lead : Connects to the positive on the battery (Obvious, but I have to say it, sorry). The other end connects to the starter solenoid. This solenoid has 4 terminals on it, 2 large and 2 smaller. The smaller ones should have a yellow/red wire, that goes into the harness, and a black wire that goes to ground. One large terminal should have a thick red (may be black) lead that goes to the starter and the other terminal should have a smaller red wire on it. The lead from the positive of the battery goes to the large terminal with the smaller red wire on it. <br /><br />Black wire : negative of the battery and one of the starter motor lower mounting bracket bolts. Remove the bolt, thread it through the lug on the end of the black battery cable and put it back where it came from. Please don't overtighten the bolt.<br /><br />Chris.<br /><br />Good luck, but you shouldn't need it....

 

[Norwegian Viking]

Re: Mariner Magnum 40

Thanks one more time Achris! I really appriciate what you are doeing.<br />Ive got it right. The electric system is working, the starter, trim/tilt, and I also tested the spark with a timing light - it works.<br />I have also found to ground wires from two coils with damage which I have replaced.<br /><br />But there is a BIG BUT!!!!!<br />With everything set, I went to the local marina to try to start the engine. It did not start, it didnt even grunt... And here is what I saw when I turned the engine over. Water came dripping out from one of the lower bolts in the powerhead. <br />And now Im really worried... does it mean I have to replace the powerhead if I want it to work.<br /><br />And here is an other thing. I called the former owner to ask how old the gas was, and he told me he bought it some weeks ago. It felt a little too greasy so I asked what premix he used. 1:25 he answered. It was because of possible lubrication problems when running it on the starter and did not start. He even had a little oil in the cylinders... Normally he used 1:50. How does a premix of 1:25 effect the starting problems? <br />Thanks a lot one more time <br /><br />Paul the Norwegian Viking (without an engine)

 

[achris]

Re: Mariner Magnum 40

1:25 shouldn't stop the engine from starting. All it would do is make it really smoky. Can you be more specific about the bolt with the water?<br /><br />Chris..........

 

[Norwegian Viking]

Re: Mariner Magnum 40

Hi Chris!<br />If I knew how to do it, I could post a picture?<br />On the port side of the engine it is about 15 screws/bolts/nuts - Technical english is not my strongest side, so I hope that you understand what I mean. Remember english is my second language.<br />When I crank the engine with the lower part in to the water, drops of water comes out of the engine behind one of the lower bolts. When I take a closer look, it looks if someone have tried to seal the bolt with some "seal/gasket-stuff".<br />I guess the water pass through channnels inside the engine, and there is a leak from one of those and the water comes through the block behind that bolt. What I fear is a crack in the block and that the cooling water gets into the cylinders.<br />I will get a proper compression control of the cylinders to day. Maybee that would give me an answer? <br /> <br />Paul