I recently got a bayliner 175 that had been sitting for a couple of years. I replaced the starter and solenoid and had the carburetor rebuilt.
Everything seems to work fine except when I stop for a while to fish. When I try to start the engine it will not crank over. I have to fiddle with the carburetor to get it started. I can restart the engine without any problems right after I shut it off and when its out of the water. Sometimes it will just crank right up and other times I have to mess with it for 5 minutes.
2006-09-10 09:36:25 · 7 answers · asked by ssurfalot 1 in Cars & Transportation ➔ Boats & Boating
The motor isa 2001 3.0 L mercruiser.
I tried letting it idle for a few minutes before shutting it off, but I didn't run the blower after it was off. By fiidling with the carb., I mean pumping the throttle when it sounds like it might turn over.
I used Shell gas, same gas I use in my work truck never had a problem. I don't think its overheating because the temp. gauage is right in the middle. When the motor is running it sounds great. How could I check if its in tune or the timing is correct?
Also I noticed that when it has a problem starting, once started I can smell something from the engine compartment . I look and everything seems fine and the smell goes away after a minute.
2006-09-11 14:38:47 · update #1
I am assuming the engine is an I/O. If the exhaust flapper is bad water may be coming threw the exhaust and getting into the cylinders. Pull the plugs and see if there is water in the cylinders. If the engine is over heating this could also cause the fuel to vaporize before its getting tot he cylinders. What kind of engine is it? The choke setting could be off, what do you do to the carb. Are you pumping the throttle or moving the choke?
2006-09-11 12:12:18 · answer #1 · answered by Boat Tech 4 · 5⤊ 1⤋
Do you have the 3.0l or 4.3l? The issue you are referring to is vapor lock. The engine compartment temp rises above the boiling point of the fuel/ethanol and "vapor locks", no solid fuel. It is very common and a few things to do. Do not add anything to you fuel except sta-bil and Mercury Quick clean. Be sure the engine is in a good state of tune, timing correct, temp 143 deg, correct spark plugs, use AC's, and try another gas station. Octane has nothing to do with vapor locking. When you stop to fish, let the motor idle for a couple of minutes and bring the temp down and run the blower at the same time.
Post the motor and year, I can give some other tips.
Need to make sure the engine temp is around 143 deg. When you shut the engine off or when it is idling, make sure the is no fuel "dripping" down the center of the carb. Float could be a little high or if it starts :dripping after it is shut off, fuel is getting to hot and "boiling" out. This could account for the smell. I will check some other info I have at home too.
To set timing on the EST ignition you will need a jumper with 2 male bullet connectors to connect the 2 white wires coming out of the distributor. Locate the shift interrupter switch, it is located where the 2 shift cables meet. Un plug it and connect the 2 wires together. Start the engine and let it warm up. Bring back to idle and the timing should be 0-1 deg BTDC. Reconnect the shift switch and remove the jumper. Timing is set.
2006-09-11 20:28:59 · answer #2 · answered by Mercman 4 · 3⤊ 2⤋
It sounds like it could have an overheating problem. Also, check out the thermostat. Is it a salt water engine? If not, are you using it in saltwater? Make sure you clean the motor after every use. You could have water in the gas from sitting up too long. Did you empty the gas tank and put in fresh gas? There are so many things that could be wrong. Just check out one at a time.
2006-09-10 17:15:13 · answer #3 · answered by skyeblue 5 · 0⤊ 3⤋
You've given us conflicting information. You state it will not crank over and you have to fiddle with the carb. The carb has nothing to do with cranking over - that's a function of the starter. Is the motor turning over with the starter or no? If not, then it's likely a bad starter or starter solenoid .
2006-09-11 11:47:12 · answer #4 · answered by Dan K 3 · 0⤊ 3⤋
I would suggest you check the choke settings on the carb. Is it an electric or temperature controlled choke. What do you mean by fiddle with? What exactly do you do to it?
2006-09-11 00:36:04 · answer #5 · answered by Anonymous · 3⤊ 1⤋
Sounds like its overheating. make sure its pumping water when running. you might also check the gap on plugs
2006-09-10 16:42:27 · answer #6 · answered by pdudenhefer 4 · 2⤊ 1⤋
It takes on to much water, run a hose through the engine, salt water kills.
2006-09-10 16:41:42 · answer #7 · answered by GreatNeck 7 · 0⤊ 4⤋