7 V6 V8 (Threaded) (Low pressure)Replace 861155A3 / 861155A2 / Sierra 18-8868. Most fuel pumps eventually require replacement. Johnson outboard fuel pump has also some problems that many of us can face while using this. ANSWER: The hose you are referring to is a safety device. Fuel pumps can easily be replaced using the proper fuel pump at minimal costs. What should be the time to replace a fuel pump? So, when turning the key on, the fuel pump is energised by a timer for approx 5 to 8 seconds. So a month or so ago, I posted about my Merc 4. These are some of the main symptoms of a bad fuel pump, so if you see these symptoms, replace your fuel pump or get it fixed quickly. That would help diagnose a fuel pump issue and also teach me some plumbing:-). With the engine off and the cowl cover removed, remove the spark plug wire boot and remove the plug. I had assumed things were good, and that they tested it on the water, as i had specifically told them that this only happens under load, not on muffs. Generally, fuel pumps themselves should be replaced as needed, but Yamaha specifically recommends that outboard fuel pumps should be replaced every 3 years.
3ltr mpi mercruiser. It could be a clogged fuel filter, clogged fuel lines, or problems with the fuel pump. Sputtering occurs when the pump struggles to supply a constant steam of fuel to the engine at the proper pressure. And you should also check if the battery is okay or not after two or three months.
Well, it looks like if I had of re-read the post today then I would have seen you solved this issue AND it wasn't the fuel system.. Anyways, see you on the water.. Powered by vBulletin® Version 4. The two parts of the fuel pump that are most commonly the source of problems are the diaphragm and the one-way valves. However, a large leak will affect the way the engine runs. It's used when setting the base timing only and if it grounds, timing will be retarded and can cause hesitation, etc. If your Anti-Theft light is flashing, the anti-theft system is disabling the fuel pump, to prevent the engine from starting. Then it's highly possible that there are leaks or clogs in the fuel pump. Make sure the other end of the tester is attached to a good clean ground. Q: I keep my stern-drive-powered boat in a lake behind my house for a month or two at a time. Paddling back to the slip wasn t fun.. LOL! Yes, a fuel pump can go out. Hey guys, hoping you can help me. Previous owner hit the outleg and prop.. Had a complete engine rebuild and new outboard leg 2017.
The fuel pump keeps cool, by staying submerged in fuel or else it would overheat. If it's not a problem with the starter solenoid, check the connections between the battery and the solenoid. Took battery off charge, connected it, and it fired right up.... Well for those problem was the ignition sensor in the distributer. 05-15-2019, 02:15 AM. Got a mechanic to give it the once over before I purchased it.. You can check this by pumping the primer bulb until it feels hard. Remember when adding more unlike metal such as a stainless-steel propeller you also may need to increase the size and number of your anodes. If the carb bowl is empty, as an example, you may have to "activate" the pump numerous times.
Ok, I finally got to spend a little time with the boat on Saturday afternoon. You may then have to turn off the key and turn it back on to get the pump "on" so you will again have fuel pressure. Rebuild the carburetor this past Sept. Was having rough running problems. Bought on Friday evening, received on Monday afternoon! Breaker Points worn or not adjusted (conventional ignition). Next step after anti siphon valve is fuel pressure test / Fuel pump/regulator tests. If you have a link to that mercruiser bulletin that would be great. The explanation is similar to grade-school science lecture. Boat ran OK for a few minutes again, but the symptom came right back. If you see those signs, replace your fuel pump. I have the fuel tested by a buddy of mine. The inlet accepts the flow of fuel and will often be marked with an arrow pointing inward towards the center of the pump. 2nd, assuming that the timed fuel pump pressure was allowed to fill up the carb whilst cranking.... then the engine starts. Boat Design Net does not necessarily endorse nor share the view of each individual post.
Troubleshooting of Johnson Outboard Fuel Pump Problems. You will have to spend a good amount of money to repair a diaphragm. If fuel is dripping, the diaphragm is faulty and you need a new pump. For any of these products to work they actually have to get inside the injector. There are also some designs that use an in-tank pressure regulator that's built into the fuel pump. How do I keep this from happening? In that case, your engine will not get enough supply of fuel. Hi, I have a bay liner Trophy with a 4.
There is only one close, and I got burned this time. At this point many mechanics will open the rubber boot at the throttle body and, spray a small amount of starter fluid into the manifold, reinstall the boot and try to start the engine. You should never use a battery for more than three years. Ok this is driving me crazy) Finally it quits... Instead, most returnless systems use a control module to manage fuel pump speed, thereby maintaining the desired fuel pressure. The current produced will eat away at the most chemically active material. Blown fuel pump relay (Relay is energized by (PCM), to route power to fuel pump when ignition is on).
Previous work done before I bought the boat: - Fully reconditioned engine with New exhaust manifoulds all work completed 2017. To test it, you'll need two 10-24 bolts, four washers, and a hose clamp. In most cases, the engine will start and run for a second or two, then shut down.
If the pump stops working, your car stops driving. All of the products needed to maintain and protect your fuel system (and everything else) can be purchased and installed by one of our friendly and professional technicians. You can usually see a part of the diaphragm through a small hole on the back of the pump. No power to Fuel Injectors (Due to faulty fuel injector relay, blown fuse, no input signal to (PCM) from crank position sensor or cam position sensor, or bad (PCM) driver circuit). From there, fuel is distributed to the injectors and sprayed into each engine cylinder combustion chamber.
In extreme cases, this condition can cause the vehicle to emit black smoke from its tailpipe. I reordered the correct part and it was. This duration seems to be consistent. If possible quick each of the exhaust manifolds with your bare hands and find the one that's not warm.