1.)Just bought a new boat. I have run it 4 times end every time its something new. Its the 5.7L Mercruiser, rebuilt in 2005. Today I was running it for about 1.5 hrs and then it suddenly cut off. I put it in neutral and it fired back on, but quickly cut back off. Tried to start it again, but I am getting nothing, hardly even a click. I tried the batteries, and they were both almost drained (couldnt even power the radio). Got back to my house and tried to start it again, but nothing. This time the batteries would run the radio and also tilt the motor. 2.)I also have been having problems with it running. Twice I have taken it out and ran fine for an hour or so, then it cuts off. Those times it will start back with some coaxing, but will only idle...if i throttle up it quickly kills followed by a little backfire. Seems like there is water in the fuel line.
Any ideas on these two issues? Could they be related?
2007-04-29 15:06:15 · 11 answers · asked by bickmoe 1 in Cars & Transportation ➔ Boats & Boating
Before you do anything else (because this will cost you next to nothing), disconnect the battery terminals from the posts on the batteries. Clean the posts and the inside of the terminals until they shine with emery cloth or a battery terminal brush. After you reinstall the terminals, smear a light coating of vaseline over the terminals to prevent corrosion. Trace the wires from the batteries and do the same to the terminals at the other end.
Good luck!
2007-04-29 15:57:24 · answer #1 · answered by Richard D 3 · 0⤊ 0⤋
You have old gas.....you only run it a few times a year.
I am just taking the evidence you are offering and now here is what to do first. Drain the gas...I mix it in with a good tank in my truck just so it will not go to waste. Change the gas water filter.
Fill up the tank and run the old gas out of the lines.
Drive the boat for a few hours. The more you use your boat the better it will run. Make sure you have oil and change it if more than a year old.
The motor was tuned and running fine before you drove it a few times and nothing should have changed, so it should be all good.
A fuel pump...low battery are things to consider but first get rid of that old gas....charge up battery.
Winterize and fuel stabilizer when you let it sit
2007-04-29 16:00:12 · answer #2 · answered by Pablo 6 · 0⤊ 0⤋
It sounds like you may have two possible problems, one electrical and the other is fuel. The electrical could be in your charging system..possible loose connection on the alternator, battery or ground. (if you use wing nuts on your batteries change them to nylon locknuts, wingnuts vibrate loose) Once you get it started check the alternator output by connecting a voltage meter to the battery terminals. It should read somewhere near 14 volts. The fact that it is shutting off could be fuel or electrical, most new engines need to have a minimum of 12-13 volts to keep the electronics operating properly, the alternator output test will let you know if this is what is wrong. If it is a fuel problem, my advice is to start with the simple things (Change filters, check for crimpped hoses, loose clamps) and then work towards the harder things, (fuel pump, Carb, fuel tank pick up tube, clogged fuel tank vent, ETC). Water in your fuel is something to check for, but you also need to be looking for clogged pick-up tube, clogged fuel tank vent, and loose fuel line connections that may be sucking air into the system. If it is water in your tank, pump it out, change out your filter ( possibly install a fuel/water seperator) and ensure you have fresh gas in the system.
2007-04-29 19:46:04 · answer #3 · answered by coasty_14 2 · 1⤊ 0⤋
Well. Depends where the boat is. You could always have it dredged and drag it back to land where you can do repairs on it or pay someone else to do repairs on it, but that only works if it's in relatively shallow waters. Insurance plus a warranty may help with that. If my boat was sinking I would go down with it. Cause the captain has got to go down with the ship matey.
2016-05-17 05:39:20 · answer #4 · answered by Anonymous · 0⤊ 0⤋
check your charging system and make sure the right amount of voltage is being put back into the batteries. Also check that the battery cable sequence is correct. Make sure that your fuel tank is getting the proper ventilation.
2007-04-29 17:22:50 · answer #5 · answered by ken2 2 · 0⤊ 0⤋
there are only two days you're happy with a boat. the day you buy it, and the day you sell it.
those 5.7 liter engines are so strong, i couldn't imagine anything could be mechanically wrong with it...the problem with our old boat was that it was water cooled...w/ water from the lake or ocean or whatever you were boating on. It seems like everytime we went out, some seaweed, or a fish, or a plastic bag would get caught up in there. We were always stranded. Good luck.
2007-04-29 15:10:42 · answer #6 · answered by Anonymous · 0⤊ 2⤋
Faulty charging system.
Electric fuel pump runs off chargine system. Therefore it won't work well.
Replace your alternator.
2007-04-29 15:17:52 · answer #7 · answered by Mr. KnowItAll 7 · 1⤊ 0⤋
You know the description of a boat? It's a hole in the water surrounded by wood and fiberglass that you throw all your money into....I gave up on them long ago...Good Luck
2007-04-29 15:11:24 · answer #8 · answered by Ron B 6 · 0⤊ 1⤋
check the alternator output and the drive belt.
check for corroded ground wire.
check engine timing.
check the points gap.
2007-04-29 15:16:55 · answer #9 · answered by Anonymous · 0⤊ 0⤋
In my experience, your symptoms would be an ignition problem , not a fuel problem. Check distributor, coil, points if it has them, and ballast resistor if it has one.
2007-04-29 15:53:43 · answer #10 · answered by Campo 4 · 0⤊ 0⤋