... test the line for leaks and be certain no restrictions exist. Step 1. I have a fuel issue on my center console. Any air in the system needs to be vented (bled) before the engine will operate properly. The Westerbeke has an electric fuel pump on it, and if we did the bleed procedure — 30 to 60 seconds of pumping the fuel — it would start again and run well . So the outboard sees a lot more wear and tear and can wear out more quickly. Either type of hose can have a problem. Click here. thank you! Replaced with an overpriced Atwood “Kit” with no ends (how stupid is that) but problem solved, for now. I finally got it started and took off, got about 400yd away from the dock, stopped to get something in the boat and the motor died. Take my free mini-course: Filed Under: Boat Work Tagged With: Boat Maintenance, Boat Projects - Repairs & Upgrades, DIY Tips, Overcoming. But blockages don’t cure themselves. preparing to cruise • overcoming problems. I have initially replaced the fuel line and bulb twice with no improvement. You may be really surprised at what you find in there — yuck! Air bubbles in a fuel line can lead to stalling, hiccuping or refusal to start. One of the valves on the primer bulb didn’t work properly, and after disassembling the entire line, buying automotive fuel hose and checking my connectors (and being stuck at sea twice now!) Funny, I think of ethanol as a “new” problem. Question. Outboard fuel problems. Store your fuel line out of the sun. Xantia 1.9 TD 1995 92000m NB. Ethanol is a problem for a lot of reasons, not the least of which is fuel line decomposition, including delamination. Any suggestions would really be appreciated. I recommend looking for: - loose, broken or missing clamp on a fuel line filling - cracked fuel hose - cracked fuel fitting - loose screw-on fuel filter element/cup (if you have such a thing. You can cut a lot of hoses out of a 25′ spool, and don’t have to waste hose since you can cut the length you need for each application. Here’s how to rest better. Click here. • Popular articles you may have missed Motor runs great but after 30-45 minutes just cuts off. Is there a fuel filter in there (that you bypassed when on the portable tank)? Outboard engines lose fuel prime because of an air leak in the fuel system. We’ve used non-ethanol gas more often than not; when we’ve used gas with ethanol, we used a gas additive as well. That can … When an air leak occurs, it often puzzles users and even some saw shop technicians because the symptoms of an air leak are varied. That confirmed a blockage. Guide to Storing Food without Refrigeration, " data-id="twitter" class="ss-twitter-color" data-ss-ss-network-id="twitter" data-ss-ss-post-id="18781" data-ss-ss-location="popup" data-ss-ss-permalink="https://theboatgalley.com/outboard-fuel-line-problems/" data-ss-ss-type="share" data-has-api="true" rel="nofollow">. Have you changed all the fuel hose from the tank to the motor. Bottom line, however: carry replacement fuel hose and hose clamps! If the leak is bad enough at idle, the fuel in the line could bleed back into the tank causing the pump to lose it's prime. I had an ‘81 Eldorado diesel last year with the exact same symptoms and after changing the rotted out section of line it ran fine. If there is any sort of issue with the fuel hose, either a leak, or some sort of kink that blocks the flow, it may cause the vehicle to produce an excessively strong fuel odor from the engine. Install a vacuum gauge in the optional inlet port of the pump. Finding Outboard Fuel Pumps, Filters and Lines. That’s also a problem, but won’t produce the symptoms we had of an engine losing RPMs … Phase separation leaves globs of ethanol in the fuel that the engine cannot run on. Another symptom of a bad or failing fuel hose is visible fuel leaks. com. After that its fine. Understanding what that meant was helpful to Jeremy. Read our privacy policy. Bad fitting connections and damaged flexible hoses being the most common. Air in the fuel system is another possible trouble that may prevent an engine from starting. I tried it myself. I’M PREPARING TO CRUISE — HOW DO I GET READY FOR THIS?? They had at least one recall of hoses due to delamination of the inner liner causing blockages. Symptoms and Possible Causes. With time, all of these connections tend to start leaking or allow air to get sucked in. After turning the engine off … I think it very likely could have been the problem. Even if the engine will start, air in the fuel system will cause the engine to miss and knock, and perhaps to stall. When this happened to us recently, the solution was pretty simple: a new hose. I forgot: Thermoid hose is (relatively) cheap @ $17.00 for 25 feet (with free shipping). If you suspect that your vehicle has a vacuum leak, read on to learn the most common symptoms, as well as how to fix them. Required fields are marked *. Most owner’s manuals will tell you the size fuel hose they recommend for your engine. No wonder fuel couldn’t get through! I replaced all the hoses and fuel pump it still don’t get enough gas to go. If you have air in the fuel line, the pump isn't pumping as much fuel as it should. Periodically it doesn’t want to accelerate, like there is a fuel restriction or possibly an air leak in the line. The lines were full of that lining. I don’t think I am capable of taking them apart so I’m hoping there is a way to dissolve that lining. Quick fix: put some grease on the end fittings at the tank and motor. OK, question here. That liner can delaminate from the outer hose and cause blockages. The first applies to both VRO and premix engines. Have any bugs gotten into the vent to stop it up? Thanks for the helpful info. Anyone know what this stuff might be? The symptom could be surging. Find results that contain... All of my search term words of my search term words Some … What Are The Symptoms of An Air Leak? This happens over and over again, because many quick-disconnect fittings that attach the fuel line to the outboard are just plain cheap. Just bypassed an inline filter not required by Mercury. Noticed the primer ball is deflating. July 16, 2006 at 9:31 pm #1250819. Is it possible the gasoline gelled. protected, low-permeation, suitable for all fuels (even E-85!) The fuel had pressurized in the tank in the sun (no vent on that tank) and when I turned the handle to steer, the crack finally opened. Best to replace the entire line, bulb and connector asap if the engine won’t idle but is OK at higher rpm. • Tips from Carolyn Locate your mounting screws. Save yourselves the headache. Usually a bad or failing fuel return hose will display a few symptoms that can alert the driver of an issue. Xantia 1.9 TD 1995 92000m NB. Since it doesn’t have the UV protection, we may try to cover the exposed portions of the hose with tubular webbing or even just tubes made from old t-shirts to give it some UV protection. [More] Appreciating Family. It filters the gas and allows any water (which is heavier than gas) to safely sink to the bottom of the filter and out of the fuel. … We’ve had problems with two hoses in the past three years. But like any other type of filter, it will eventually clog up with the materials it is filtering out. Most air leaks draw a very minute amount of air at low engine speeds. E-bay has several vendors. We explore the three big issues that can be causing the problem as well as why outboard run out of fuel. Marine fuel hose works on negative pressure (vacuum), where the fuel pump in the engine sucks the fuel into the hose from the tank. What is causing the rise in outboard fuel line problems? REMINDER: If you are testing a two-pipe system, make sure you remove the return plug and reinstall the return line. They ain’t “worth” carryin’ out of the store–much less the $50.00 they cost (and that’s for their “universal” hose which has no “ends” !”) Thermoid brand hose is American made, u.v. Wally World Wood hoses are ok if you change then every year. Air leak in fuel system [Diesel]. walleye_wisdom. … Listen for unusually air sucking sounds as you squeeze. Best to replace the entire line, bulb and connector asap if the engine won’t idle but is OK at higher rpm. Keep your fuel lines free of air to help keep your car running smoothly. The liner caused issues when trying to put serrated coupling in! . A Note on Cranking We knew that the leak had to be somewhere between the tank and the fuel pump. The fuel line, bulb, etc., are only a year old and I checked all the clamp/connections. From the symptoms you describe, it sounds like you have an air leak in a fuel line. Check all fuel line connections and hose clamps. The problem was that there was a pin hole in the flexible line connecting the fuel filter to the rigid line running back to the tank. If that doesn’t do it off to the mechanic it goes. Thanks so much. Starving for fuel. Somewhere between the engine and the fuel tank. I will never buy another one of those again. Air can be sucked in past the the clamps or crimps on the fuel hoses. Lesson – PERIODICALLY check your hoses (and avoid Sears outboards – not really an issue anymore!). Air bubbles in a fuel line can lead to stalling, hiccuping or refusal to start. The amount of air needed is easy to under estimate – around one cubic metre per minute is required for every 10hp of engine power. . 2 – Automotive fuel hose works on positive pressure, where the fuel pump in the top of the fuel tank pushes the fuel through the hose. Symptoms caused by leaking REGULATOR DIAPHRAGMS point to: Bad Injectors Bad Fuel Pumps Leaking VST Air in Fuel Lines Bad Gas Bad TPS New rubber DIAPHRAGMS from OptiMaxFuelRailRepair.com will cure and correct these symptoms. Locate your fuel tubing, and remove it. The hole had been caused by wear from the flexible line rubbing against a loom of wires (i.e. Again, consult your automotive manual or a professional if necessary. Fix of a Yamaha no start, hard start, caused by bad fuel connector and bad hose. I knew it had to be sucking air some where. 1. Hi! I'm pretty sure I've got a leak somewhere in the fuel lines, when the engine is cold is runs rough for 5-10 seconds before smoothing out. It is suggested that you have your leaking fuel injector sent to Injector RX for testing and cleaning. Great Article! Help is here: Overcoming the First-Year Learning Curve (a free mini-course from The Boat Galley). Squeeze the primer bulb and make sure fuel is flowing. And it wasn’t cheap either. Tighten the screws securely in place. Just replaced fuel pump and all fuel lines. The seal won't let fuel leak but allows air to be drawn into the fuel line. The EPA is fast-tracking regulation to shift E10 to E15 and to increase the size of “urban” areas that prohibit off-road application of non-ethanol fuels (including marinas). Store … Blow into 1 end of the tubing and look for any bubbles in the water. An increased and steady idle speed can be one of the best warning symptoms for detecting a carburetor air leak. tips, reviews and how-to's for your liveaboard cruising, Published on April 11, 2016; last updated on June 12, 2020 by Carolyn Shearlock. One of the first symptoms of an issue with the fuel return hose is an excessive fuel smell. • New articles & podcasts There are several methods to troubleshooting a stalling outboard engine. New rubber DIAPHRAMS from ThePelicanServices.com will cure and correct these symtoms. Marine: Boating, Sailing, PWC, Nautical Navigational GPS - Outboard Gas Line Connection Leak - I have a 30 hp Johnson outboard. Same Xantia as in Smokey start thread. Went to start the boat up today, it started really hard, and kept dying on me. Keep your fuel lines free of air to help keep your car running smoothly. Generally, for an engine that size, it’s either 1/4″ or 5/16″, I have problem bulb starts to pump up then goes flat and will not expand.I replaced bulb new hose and both ends but problem persist any help . Runs fine at 3/4 speed. Then check the pickup tube in the tank — make sure there are no blockages. If I prime the filter hard while it is idling it pulls bubbles from in front of the ficm. https://mechanicbase.com/engine/vacuum-leak-symptoms-causes When an engine fails to operate, stalls, misfires, or knocks, there may be air … We’re still working on that. When loosening the mounting screws, be very careful to only remove 1 at a time, and remember to tighten them all back into place. Fuel leaks. It’s fabric-reinforced and one-piece construction—no “liner” to collapse and stop fuel flow. But dies off at full throttle. Be careful, liner causes issues. Brandon West, these people have a good blog. If the vacuum that draws the air into the motor and then as the air goes through the carburetor the fuel gets added in the correct proportion and the motor runs nicely, when everything is working well. Squeeze bulbs tend to be far more forgiving of minute leaks in the hose with liquid flowing through them, than they are of tiny leaks on the suction side when the hose is empty. If the problem persists, a trip to your mechanic is in order. Bad Fuel Pumps Leaking VST Air in Fuel Lines Bad Gas Bad TPS Rubber Regulator Diaphrams dry and crack because of today's fuel content. The Resource Center has four FREE mini-courses to guide you to just the info you need, whether you’re discovering what living on a boat would be like, preparing to cruise, overwhelmed with the first-year learning curve, or needing help with cooking aboard. I knew the outboard ran well, when it would run, but as soon as it started, it died in the following seconds. What do I do now? Test leaking Fuel Injectors.. Fuel injector leak testing should be done under operating pressure. Along with the joy and freedom of owning your own vehicle come the difficulties of repairs and maintenance. The pick up line cowling and into the rear of boat pump, the pump pumping! Your hoses ( and avoid Sears outboards – not really an issue anymore! ) closed either. 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