Outboard motor leaking gas into water

Unless it was leaking onto the hull then washing-off into the water when you put it in. Life on the water tends to be more enjoyable when an outboard engine runs well.

As a general rule I tend to avoid keeping the engine tilted fully up and in a horizontal position if at.

Outboard motor leaking gas into water. I have a 1985 Mercury 50hp. It starts fine and runs pretty good. Problem is when I come back to the dock fuel leaks into the waterIt doesnt seem to be coming from the carbs but I cant say for sure.

When I raise the motor up the shaft from the water line down and the lower unit feels oily. Gas Leaking From Outboard Motor. Took the boat on the lake a few days ago and on the way back had to use the trolling motor for about 15 miles to get to the dock.

Motor started to lose power and then would not start at all. Got it home and only thing I have done so. Water in outboard motors can have detrimental effects on injectors fuel pumps and can eventually destroy your pistonsIn this blog we speak to outboard mec.

Water leaking from outboard Chances are it has always had water trickling out of this area. If its not overheating I would not worry. To clean out the tell tail orifice I use a piece of weed trimmer line.

Sometimes the clog will be further up the hose or. My guess is that the fuel tap is not closing. It cant be closing if fuel continues to leak.

If the tap is still open then there is a good chance that when the engine is tilted forward fuel will leak as the float will only be effective if it is near to upright. I would check the fuel tap before messing with the carb. With the carburetor body held upside down the float being viewed from the side adjust the float so that the free end of the float the end opposite the hinge pin is ever so slightly higher just ever so slightly off level than the other end.

And when viewed from the end make sure it is not cocked. Life on the water tends to be more enjoyable when an outboard engine runs well. Keeping the engine in good operating condition only assures that one part of the outboards system works well.

In addition to fresh clean gas it is best to know how to troubleshoot the connectors and hoses that supply fuel to the engine. Either at the crank end seals most likely the loweror intake somewhere. Generally this will cause the symtoms you descibe.

Especially if after you have run the outboard and it drips black oil not to be mistaken for gear oil or snot fuel blended with water dripping from the lower or out the exhaust ports. I was told that my water jacket gasket is leaking on my 1988 mercury 45 hp classic 50 a freind told me that it was an easy fix to take the plate that faces the back of the motor were the spark plugs are. I did that and do not see were that would let water leak into the cylinders and how the water is coming out of the hole next to the top spark plug.

Typical fuel filter with water trap to remove water in outboard fuel. Once this is full of water additional water will ingress into the engine. When there is no water in the trap the liquid will be all the one colour.

If you see a line you need to empty the water. Water in outboard motor fuel sinks to the bottom. Some motors do a better job of concealing this problem by keeping any fuel that spills inside the engine cowling.

It usually drains down into the engine midsection and then into the water. On some motors it will drain into the splash well. As a general rule I tend to avoid keeping the engine tilted fully up and in a horizontal position if at.

The 10 Hour Sea Trial. Safely run the engine with the boat in the water. Advance the throttle above 1500 rpm.

Vary the throttle every 15 minutes. Do NOT exceed 34 throttle during the first 10 hours. Check your exhaust manifolds and risers for any water leakage.

How many hours should an outboard motor last. Boaters might notice a strong fuel odor during or after operation indicating the motor is defective. They might also see a rainbow sheen in the water after running the motor.

Change the fuel in the engine regularly. It would help if you looked at the fuel in the fuel tank before you begin your day on a water body. This is because water can get into the fuel and in the absence of a fuel filter can enter into the system and damage your outboard motor.

Your signature with engine info is now showing Jason. As the engine seems to be running fine now Id keep an eye on it. Perhaps check the spark plugs and the fuel pumps for slight leakage.

A failing fuel pump diaphragm may have seeped excess fuel. There are a limited amount of places that it could make-it into the water from inside the boat. Exhaust Filler Cap Vent Hole in the hull somewhere.

But if this was the case water leaking-in would prevent any fuel from getting out. Unless it was leaking onto the hull then washing-off into the water when you put it in. Modern outboard engines have come a long way whether youre talking about the now-common four-stroke or modern DFI motorsIn both cases reliability is far better than it was in decades past fuel efficiency has increased and problems like smoky exhaust and.

What is bad gas. It could be that you put gas into the tank that is tainted or it might have gone bad while in the motor or fuel tank from sitting for too long. Water and trash can get into the fuel supply causing a clog to occur.

Additionally when fuel sits in the tank for too long it loses octane and starts to separate or gum up the system. For this reason outboard engines wear out faster absorb more heat over a longer period and work under a constant load. Outboard engine cylinders also take a beating when it comes to ingesting water from their environment or cracking as a result of improper winterizing procedure.

Some outboard cylinders simply crack from heat and stress. When key is turned off the spark should not get to the plugs so should not keep running that is one of your problems you need to look into when running some fuel mix spits out of carbs and collects in the silencer on front of carbs when the fuel evaporates it leaves a real oily residue that may be what you are seeing when you tilt motor. This is easier said than done.

I ended up removing the lower zinc from the engine head inserted a tube in its place to catch the cooling water and started the engine. The lower zinc is about the same level as the 2nd piston in the head. I filled a bucket with the cooling water from that location and the water was clean.

This tells me that the oil leak is between the 2nd cylinder and the exhaust. Check all the tubes nozzles plugs and every delicate part of the fuel pump fuel line and fuel engine. You need to check for damage or corrosion.

This might be leading air into the fuel line. Get rid of damaged parts immediately and rebuild. You can tie nylon straps around fuel lines after purging out the air leak.