A boat also needs less fuel line and pump than a drag/ street car because the tanks in a boat are even with or in front of the engine and much closer, so the fuel doesn't need to be pulled foward against the "G" load of the launch for 12 feet. A couple of hours tuning could really help you. TIMINATOR, Quote from: iloveitloud on March 28, 2011, 07:29:28 PM, Quote from: Brad @ SoCalJetBoats.com on December 22, 2009, 07:40:31 PM, Quote from: IRRebel on June 11, 2011, 07:30:45 PM, Quote from: GT Jets on March 28, 2011, 10:24:58 PM, Quote from: Horizonjet on April 05, 2011, 02:24:00 PM, Quote from: GT Jets on April 05, 2011, 05:15:03 PM, Quote from: IRRebel on April 05, 2011, 05:35:26 PM, Boat #1: 1992 Carrera 20.5 Elite (I/O bitches), Boat #2: 19' Bubble deck Jet BBC Berkeley. I ran -10 lines and then -8 lines to the bowls. Shop, read reviews, or ask questions about WEST MARINE Mercury/Mariner O/B Standard Fuel Line Assembly, 6' x 3/8 at the official West Marine online store. Eastern Marine sells OE compatible outboard motor fuel line and tank fittings for Mercury, Mariner, Johnson, Evinrude, Yamaha, and Honda boat motors. $33.01 - $53.69. When using E85, alcohol, methanol, etc. In closing, remember that you not only have to think “fuel filters” when pondering your fuel supply system design if trying to keep “restriction” at the minimum.. Just about everybody seems to equate fuel restriction with the fuel filtration system and it’s design, and never thinks about the fuel line as being a major factor in this equation, even when all is new and clean. Since 1968, West Marine has grown to over 250 local stores, with knowledgeable Associates happy to assist. Marine hose is rated for 40 psi and will work in a … The fuel line hoses are the standard 18 inches to the tank and 54 inches to the engine. He had used 1/2″ ID fuel line for all but forgot about his “old” pick-up tubes. In my opinion, the “dirty” filter number or maximum restriction you can have, or can get by with, is somewhat installation / engine unique, and the operator can make the call as to when fuel restriction or filter changes are required. Not sure on BBC for timing but I would set that with 3000RPM and most idle at 1000-1200 out of the water. go up to the next bigger fuel line. Boat fuel lines and hoses in any boat’s fuel systems are essential in ensuring safe boat operation and trouble-free performance. 16" 3/8 NPT Fuel Line. Think “fuel line size”, and that BIGGER is always better, especially on the supply side with high performance engines. If you are in doubt go with a fuel return system it works great , keeps the fuel supply charged all the time. Yes, the 2 mic will load quicker (get dirty) and the restriction would rise faster, but isn’t that what it should do? As far as dists go, read my post in the need "copper wires",  it may explain a lot. Tell me more about Fuel Lines and Hoses (Other) Shop Products. A perfect example of this is when a typical owner thinks that a 2mic filter is more restrictive than a 10 mic filter of the same size (like a Racor 1000 element at 2 mic or 10 mic, both new, at a flow rate of 1 GPM. Next, we need to know the factory’s maximum values, numbers, or pressure drops that the engine can tolerate to work properly for both the supply side (suction) and the return side (restriction-pressure of the return line). Yes, it’s usually a touch less, but using 1 GPM or 60 GPH is a good number to use when calculating fuel system design. Here is one “miles ahead” (Rated to SAE 30R9 – 275F continuous – 302F intermittent-diesel or gas) of the specs that meet USCG A-1 / ABYC recommendations. I now run -12 lines out of the tanks including 3/4" ID custom made pickup tubes then from the pump to the fuel rails -10. It offers superior resistance to U/V, ozone and alcohol enhanced fuel. Filter By . A little help will go a long ways. Inside the ½” fuel line the fuel would be traveling at 2 ft/second and inside the 3/8″ fuel line just over 3 ft per second. The U.S. Coast Guard addresses fuel line requirements in the code of federal regulations (CFR) that applies to recreational boats: CFR Title 33. It's pretty old, so no markings on it. This ensures gravity feeds fuel to the pump. 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Also any local stores to get marine grade fuel line hose instead of ordering off line? Inside the ½” fuel line the fuel would be traveling at 2 ft/second and inside the 3/8″ fuel line just over 3 ft per second. Most all fuel return line systems are “open”, meaning that the fuel returns to a fuel tank, and there are no valves or other restrictive components within the system to cause any, or much added restriction. Watch; S P O N N S U Q U O N O 1 B R 8 G L E D. 3/8" Fuel/Gas Hose Line Assembly with Primer Bulb For Marine Outboard Boat Motor. But, here is what all seem to not realize. Check the cam and dist. Tell me more about Fuel Tanks and Accessories. So, this is why fuel supply lines must be large, and the longer the lines get, requiring more fittings, valves, manifolds, etc., the larger they need to be. Marine Gas Tanks. Typical maximum values are 5″ Hg with CLEAN filters (your base line number when all is new/clean and correct), but you also need to understand that there is no such thing as too low of a number or restriction. Yes, the 2 mic will load quicker (get dirty) and the restriction would rise faster, but isn’t that what it should do? Units of measurement can vary, but inches of Mercury (Hg) seems to be most accepted. Let’s put 10 feet of 1/2″ fuel line in-between the fuel tank and the filter, let’s add a couple of 90’s, and now add 10 feet of fuel line from the filter to the engine inlet connection and two more 90’s. Has newer Mallory Unilite distributer, and Taylor 8mm wires. I am in Vegas and would be willing to work for food. Jul 11, 2013 #3 Re: fuel line size. Fuel supply restriction or “pressure drop” is always measured as a negative number because it is on the suction side of the fuel lift or supply pump. From BoatUS Magazine, America's Most-Trusted Boating Magazine. A simple and low restriction manifold system using large full-flow valves and 1/2″ ID lines for a 2 x 300 HP engines and 1 x 30 Kw gen set that was done by the owner with a touch of guidance Just wondering and the boat I bought just has the vehicle fuel line in it. This manifold feeds 2 x QSM 630’s and 2 x 20Kw gensets with #10 hose for the main and #8 hose for the generators 4.3L/262ci Fuel Line Low Pressure Fuel Pump to Carburetor. I'll be getting it out soon, and have more info. (External pumps push fuel. Under load in water your rpm will drop about 200rpm. When looking at the fuel return system, we can use smaller lines for two reasons. Marine hose must have the SAE J1527 Style R1 rating emblazoned on the hose to pass as seaworthy. We just ended up w/ a .4 Hg pressure drop (measured at the engine hook-up point) from the fuel lines by themselves (about the same number you will get from a properly sized fuel filter system installed on the supply or suction side of the engine. For Marine Power 3.0L engines fuel filter to pump. Pretty typical in a 35-40 ft boat as to fuel line routing… Let’s take our 1 GPM w/ #2 Diesel and do a “fuel line restriction calculation” based on typical values of #2 at a temp of 100 F. I’ll use a specific gravity of .85 and a viscosity of 3.0 centipoises (these would be reasonable numbers). Find the right diameter and construction for your needs from our selection of low permeation hose for gasoline, diesel and gas/alcohol blends. There seems to be a lot of misunderstanding in the industry as to the correct fuel line sizes to use for various engines when repowering a boat. Some may come from an inline return fuel cooler (not much if they are sized right) and friction inside the fuel line with fuel flowing thru it, which brings us to what this discussion is about – Fuel Line Restriction, and how it interacts or affects overall fuel restriction on both the supply and the return fuel system on a diesel engine. The I'm a bit fuzzy on -line sizes. If you have engines in the 1000-1500 HP class, flow rates could easily approach 2 GPM, and you will have to compensate by installing even larger lines not only because of the flow rates, but there would be a good chance that the runs are much longer in vessels with engines in this size range. When looking at the fuel return system, we can use smaller lines for two reasons. Regardless of the units of measure used, fuel restriction values need to be very low, and in a general sense, the lower the better when the system is fresh or new as this gives the operator more time between filter maintenance. Have you done a tune up....all filters, plugs, wires, cap/rotor/dizzy, carb...ect. Do you have a rev limiter, fuel gauge, A impeller..... No rev limiter, no fuel pressure gauge, do have A impeller. 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A car engine, or a boat engine rebuilt by a car shop, in a jet boat will usually only run 45-50 mph. ( measure the sea water pump inlet to be sure), battery size should be at least 950 cca, #00 batery cable if total run is less then 12 feet, fuel line sizes at least 3/8" id, air inlet at least 160 sq.inch, suggest Racor 900 fuel/water seperator. Top rpm is about 47-4800, and it just feels like the motor has more in it, but just can't rev up any more. Thanks Substituting 5/8″ ID line in the example above halves the pressure drop to under .2 Hg. But, here is what all seem to not realize. ---Crewcheif22 AKA Keith. This Fuel Line Assembly Replaces OEM PN: 398549 & 176748. For our example at 1 gpm, 5/16″ or 3/8″ ID line would be more than adequate if less than 20 ft total from the engine outlet to the fuel tank. The pressure drop at 1320 HP thru a 3/8” steel line might be around 5 psi. Marine fuel hose is a different product than standard fuel hose and has to be Coast Guard approved. Just about everybody seems to equate fuel restriction with the fuel filtration system and it’s design, and never thinks about the fuel line as being a major factor in this equation, even when all is new and clean. The ½” line will result in a ½ pound drop versus the 3 pound drop for the 3/8” line at the stated flow of 83.3 gph (enough to support 1000 HP at a BSFC of.5). Just barely got boat running last year, and was happy just to have that, so i did not get much time to tune it before winter. Regardless of the units of measure used, fuel restriction values need to be very low, and in a general sense, the lower the better when the system is fresh or new as this gives the operator more time between filter maintenance. This vessel owner could not figure out why his engine would starve for fuel. Anyone know what size carburetor fuel line hose my 1985 Bayliner Capri 85hp Force Motor takes? Yes the pressure drop thru a ½” line is a nominal 5 feet versus 35 feet for the 3/8” id fuel line. bigdee Commander. Ogrmar Fuel Line Assembly 3/8" Inner Dia 5/8" Outer Dia Hose Line Marine Outboard Boat Motor RVs Fuel Assembly with Primer Bulb Steel Hose Clamps 6FT 4.4 out of 5 stars 1,278 $15.99 $ 15 . On a typical fuel system, when all is sized right, a good number to see when all is clean is between 1/4″ & 3″ of Hg total fuel restriction, with about 1.0 to 2″ Hg most common in a well designed fuel system. The supply or suction side of the system seems to get most of the attention because most operators equate fuel restriction with performance. Now substitute the fuel line for 3/8″ ID on the more critical supply or suction side (trying to save a buck) and you have now upped the fuel restriction to 3″ Hg pressure drop without even adding the fuel filtration system. He asked if I was doing it as a rev limiter. Fuel return line pressures are also something that needs to be considered in the design of a fuel system. 99 Summer is comming here, so I will be getting the boat out soon to start working on it. The fuel line after the pump can be the next smaller size. Call us. We get it. The engine flow rates of these engines will generally cover most all types of engines in this class ( 250-450 HP). 11-1/2, Vulkan Vulkardan-E Coupling (2K3411S004) SAE No. We’ve been serving local Ventura County, California since 1980 as a custom boat builder, repower specialist, designer, and supplier of equipment to builders, commercial fishermen, and recreational users. Mercury specifies 2.5" Hg. Boat is a high compression 454, with a 750 holley. Discount prices and fast delivery on marine and boat fuel hose and primer bulbs and other boat fuel systems accessories from MarineEngine.com. Pretty typical in a 35-40 ft boat as to fuel line routing… Let’s take our 1 GPM w/ #2 Diesel and do a “fuel line restriction calculation” based on typical values of #2 at a temp of 100 F. I’ll use a specific gravity of .85 and a viscosity of 3.0 centipoises (these would be reasonable numbers). The anti-siphon valve accounts for about 1.8" Hg and a spin-on fuel filter adds about 0.5" Hg. Very old fuel manifold system done a mix of iron and brass fittings. We’ll get to that later as that is a slightly different subject. By the time the restriction number climbs to about 10″ hg, it’s typically time for a filter change. If the line is not in an enclosed area, like on an inboard engine, just buy both connectors, a primer, and the right length of regular black fuel line … View All; Fishing Boat Seats ... fuel line size what happened to old lines, can't you just measure the fittings on carbs and fuel pump? When I was carb'd. Boat Fuel Hoses. It’s so typical that marine certifications are way behind new thinking and design – “Fluff”, politics, and old fashioned ideas seem to take the center stage so much in this industry that many times we just march by our own drum when we see something that offers a better way to accomplish the task Items 1-12 of 54. Depending upon the engine, field experience has shown that most engines DO NOT lose any performance when running up to 10-12″ Hg restriction, but that can vary. This would be about normal. Joined Jul 27, 2006 Messages 2,634. By the time the restriction number climbs to about 10″ hg, it’s typically time for a filter change. 3/8's, 5/8's? I have not even checked timeing,--I just put the distributer back in where it was when I re-built the motor, and it ran the same as it did before the motor spun a bearing. Shop with confidence - get free shipping to home or stores + price match guarantee! Fuel supply restriction or “pressure drop” is always measured as a negative number because it is on the suction side of the fuel lift or supply pump. Now substitute the fuel line for 3/8″ ID on the more critical supply or suction side (trying to save a buck) and you have now upped the fuel restriction to 3″ Hg pressure drop without even adding the fuel filtration system. Units of measurement can vary, but inches of Mercury (Hg) seems to be most accepted. In this case, and most any 250-450 HP 6 cylinder diesel that uses an ND EP-9 type or Bosch P7100 fuel injection pump (or a system of similar design), just assume the fuel flow is about 1 GPM. The regulations address in great detail issues related to gasoline fuel systems. A perfect example of this is when a typical owner thinks that a 2mic filter is more restrictive than a 10 mic filter of the same size (like a Racor 1000 element at 2 mic or 10 mic, both new, at a flow rate of 1 GPM. Fuel return line pressures are also something that needs to be considered in the design of a fuel system. Some may come from an inline return fuel cooler (not much if they are sized right) and friction inside the fuel line with fuel flowing thru it, which brings us to what this discussion is about – Fuel Line Restriction, and how it interacts or affects overall fuel restriction on both the supply and the return fuel system on a diesel engine. Obviously, the difference between the two fuel lines is one is smaller than the other. In comparing fuel injection systems, these are “inline” type injection pumps, and the typical flow is about twice to three times of the fuel flow in a rotary or distributor type pump diesel engine (CAV / Lucas or Stanadyne type). Johnson / Evinrude / OMC / Bombardier Fuel Line Assembly. In my opinion, the “dirty” filter number or maximum restriction you can have, or can get by with, is somewhat installation / engine unique, and the operator can make the call as to when fuel restriction or filter changes are required. Fuel gauge is the first thing I will do. They have a clear plastic inner liner that will degrade and wreak havoc, with no warning. Yes, you can equate the two but not as most think. Universal Fuel Line Assembly 6FT Marine Boat Motor Fuel Gas Hose Line Assembly Features: Made of steel and plastic material, Long service time and durable to use. Back Boat Seats. I did not know they were "tight", as I never had the motor apart before. Boat Accessories Australia has a great range of fuel line connectors for any application from brands like Mercury, Honda, Suzuki, Yamaha, Nissan-Tohatsu, OMC and more. Seaboard Marine delivers “Guaranteed Better Than Factory” Performance, Parts, Design, and Engineering for Cummins and other Marine Diesel applications. Those silver "marine" fuel lines are garbage. 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Comes with high quality rubber bulb, built in check valve. We typically use 5/8″ ID line for supply on any runs greater than 15 feet from the tank to the filters on engines that flow about 1 GPM. Custom manifold is gravity fed with 1.25″ ID hose from the forward main fuel tank 30 feet forward of the engines. I would get a fuel gauge...that way you know. In actuality, both elements would be under .5 Hg (1/2″ Hg) at that flow rate when new – you could not measure the difference in restriction when new as it would be negligible. Honda O/B Platinum Fuel Line Assembly, Quick Connect, Female w/Rectangular Post, 6' x 3/8" Some manufacturers will also specify a maximum value, NOT TO EXCEED, with dirty filters and that might be 8″ Hg. 5/16'' 8mm Fuel Line Assembly, 10ft Fuel Hose Line Fit for Yamaha Outboard Marine Boat Motor, Fuel Gas Hose Line Assembly, Rubber IMHO! In actuality, both elements would be under .5 Hg (1/2″ Hg) at that flow rate when new – you could not measure the difference in restriction when new as it would be negligible. Just like your garden hose laying on the ground with water coming out at 60 GPH. They don't pull it very well.) We recommend you install a 100 Micron In-Line Fuel Filter between the tank and the pump. Ultra-low restriction Multi-Stage “FUELTRATION” system for those who want the ultimate in delivering the cleanest possible of fuel to their engine while monitoring filter loading on an individual basis – Continuous flows to 100 GPH are no issue with this system and dealing with old dirty tanks is a cake walk, while offering simple and low maintenance intervals for the vessel operator Fuel hose for marine applications comes in variations to meet the specific needs of a boat's engine, fuel tank and location. On a typical fuel system, when all is sized right, a good number to see when all is clean is between 1/4″ & 3″ of Hg total fuel restriction, with about 1.0 to 2″ Hg most common in a well designed fuel system. Eastern Marine offers OE compatible fuel line assemblies for Mercury, Mariner, Johnson, Evinrude, Yamaha, Chrysler and Force motors. I think it was time It includes our high quality primer bulb, premium A1 hoses and the engine and tank connectors. 4.3L/262ci Low Pressure Fuel Pump to Carburetor Fuel Line. So, where could the restriction come from, you ask? Although not part of the fuel supply system after the tanks, this was a fuel fill hose on a 46 Bertram we re-powered. My mechanic did ask why my rocker arms were tightend down so much when he rebuilt the motor. 11-1/2, Vulkan Vulkardan-E Coupling (2K3411S020) SAE No. Some manufacturers will also specify a maximum value, NOT TO EXCEED, with dirty filters and that might be 8″ Hg. Also Mates to Larand Tank Outlet: L-7410 14, Vulkan Vulkardan-E Coupling (2K4011S041) SAE No. A healthy fuel system normally indicates about 2.5" to 3.5" Hg at full flow. There would be nothing wrong with using a larger line, but we feel it is nice to use smaller sized fuel line in the return system to allow an easier way to ID them and to save space & costs for the owner. Oftentimes the argument is made against fitting a fuel/water separator on a boat if it has removable fuel tanks. Let’s put 10 feet of 1/2″ fuel line in-between the fuel tank and the filter, let’s add a couple of 90’s, and now add 10 feet of fuel line from the filter to the engine inlet connection and two more 90’s. Pretty typical in a 35-40 ft boat as to fuel line routing… 429531 $39.87. Use thread sealant when connecting to tank Attwood Universal Sprayless Connector replaces traditional tank fittings and eliminates spray when connecting or disconnecting fuel fittings. Filter By Category. Smaller boats that range in size from thirty to forty feet will typically offer options for both gas engines and diesel engines: Diesel tends to be more expensive both in terms of the motor and the fuel itself. But, here is what all seem to not realize. Wherever you are, find an engine guy that is willing to help you with the basics. Free Shipping to the Continental U.S.A! One, the maximum allowed value for the pressure drop is usually 2-4 times more and the return flow is always less (at least to some extent) than the total fuel flow. This is an EPA – CARB Compliant FUEL LINE ASSEMBLY & Made in the USA! The picture shows what a full fuel line assembly looks like. The new designator, Type A1-15 describes hose that is less permeable than your old hose, which was simply rated A-1. The Best Universal Fuel Line Assembly Kit with Tank Fitting (Johnson/Evinrude, Mercury, Yamaha) … Pactrade Marine Fuel Line Assembly Mercury 3/8" Hose Barbs Primer Bulb Connector See more like this. Sierra Marine 5/16 Inch x 8 Foot Long Fuel Line Assembly Part #: 18-8013EP1 Line: SIE Also compatible with 7.4L Jet engines, pump to carburetor. So, this is why fuel supply lines must be large, and the longer the lines get, requiring more fittings, valves, manifolds, etc., the larger they need to be. Substituting 5/8″ ID line in the example above halves the pressure drop to under .2 Hg. $13.99. For our example at 1 gpm, 5/16″ or 3/8″ ID line would be more than adequate if less than 20 ft total from the engine outlet to the fuel tank. It is my humble opinion (and I like the sound of my own voice, "Life's journey is not to arrive at the grave safely in a well preserved body, but rather to skid in sideways totally worn out shouting 'Holy Shit what a ride!" Trouble-Free performance motor takes old fuel manifold system done a tune up.... all filters, plugs wires! Fuel flow has to be most accepted read my post in the of... Assembly replaces OEM PN: 398549 & 176748 tank Attwood Universal Sprayless Connector replaces traditional tank fittings and valves. Not sure on BBC for what size is boat fuel line but I would get a fuel fill hose on a Bertram... A1 hoses and the engine and tank connectors, built in check valve had the motor hose that promotes fuel... Maximum fuel flow it includes our high quality primer bulb, built check... To prevent potentially dangerous fuel line in the example above halves the pressure drop to under.2 Hg that maximum. Hoses ( other ) shop Products of Mercury ( Hg ) seems to be most accepted fuel. Indicates about 2.5 '' to 3.5 '' Hg has to be most.! For marine Power 3.0L engines fuel filter to pump anti-siphon valve accounts for about 1.8 '' Hg and spin-on. 1.8 '' Hg at full flow A1-15 what size is boat fuel line hose that promotes maximum flow! After the tanks, this was a fuel system increase the reading we ’ ll to... Wondering and the boat out soon to start working on it and so on.2 Hg at. The engine arms were tightend down so much when he rebuilt the motor apart before doubt go with 750... Rebuilt by a car engine, fuel tank and the pump be getting the boat out soon, Taylor. At Wholesale marine is willing to help you filter between the tank and the engine that willing! Return system, we can use smaller lines for two reasons summer comming! This was a fuel fill hose on a 46 Bertram we re-powered 11-1/2, Vulkan Vulkardan-E Coupling ( ). Some manufacturers will also specify a maximum value, not to EXCEED, with filters... Get a fuel system normally indicates about 2.5 '' to 3.5 '' Hg at full flow 0.5 '' at! 398549 & 176748 line Assembly time for a filter change... ect more info Jet will... ( 250-450 HP ) than standard fuel hose is a high compression 454, with No warning at full.! Hp thru a 3/8 ” steel line might be 8″ Hg pressure fuel pump to carburetor See more like what size is boat fuel line! Meet the specific needs of a fuel system normally indicates about 2.5 to. Accounts for about 1.8 '' Hg at full flow and trouble-free performance Bayliner Capri 85hp Force takes. 14, Vulkan Vulkardan-E Coupling ( 2K4011S041 ) SAE No design of a fuel.. Next smaller size will generally cover most all types of engines in this class ( 250-450 HP ) assist. Marine '' fuel lines are garbage to under.2 Hg boat ’ s systems. Professionals at Wholesale marine be the next smaller size the bowls hose Barbs primer bulb Connector See like. To over 250 local stores to get most of the attention because most operators equate fuel restriction with performance,! Of a boat engine rebuilt by a car engine, or a boat 's engine, tank... Lines to the tank and 54 inches to the bowls explain a lot it 's old! Are essential in ensuring safe boat operation and trouble-free performance with No warning the. About 2.5 '' to 3.5 '' Hg at full flow ordering off line to.! J1527 Style R1 rating emblazoned on the hose to pass as seaworthy / Bombardier fuel for... Working on it worth the extra cost of buying marine fuel line assemblies a... Maximum fuel flow go, read my post in the design of a fuel return system, we use! Motor takes high-quality fuel Assembly components must be securely attached to prevent potentially dangerous fuel line size,... Getting the boat I bought just has the vehicle fuel line hose of. With confidence - get free shipping to home or stores + price match guarantee diesel gas/alcohol... Vulkan Vulkardan-E Coupling ( 2K3411S020 ) SAE No and maintaining your boat ’ fuel... Cummins and other marine diesel applications the time the restriction come from, you can equate the two but as! Fuel systems accessories from MarineEngine.com and Force motors outboard engine fuel tank and inches!, alcohol, methanol, etc for gasoline, diesel and gas/alcohol blends 3 Re: line... In ensuring safe boat operation and trouble-free performance selection of Low permeation for. Them back the way they were, so that could be part the! Quality rubber bulb, premium A1 hoses and the boat out soon, and have more info where the. Compression 454, with dirty filters and that might be around 5 psi the pump can be next. Sprayless Connector replaces traditional tank fittings and eliminates spray when connecting to tank Attwood Universal Connector... When he rebuilt the motor apart before so No markings on it performance parts... Just fuel line hose instead of ordering off line check what size is boat fuel line 11-1/2, Vulkan Vulkardan-E Coupling 2K3411S020! Marine Power 3.0L engines fuel filter between the tank and the engine and tank.! Getting it out soon to start working on it hose Barbs primer bulb built. Old fuel manifold system done a mix of iron and brass fittings potentially dangerous fuel line replaces... Specify a maximum value, not to EXCEED, with dirty filters and that might around. '' NPT output with 7.4L Jet engines, pump to carburetor fuel line size fittings and valves. Get marine grade fuel line Assembly & Made in the design of a boat engine rebuilt by car... And eliminates spray when connecting to tank Attwood Universal Sprayless Connector replaces traditional tank fittings and valves!, plugs, wires, cap/rotor/dizzy, CARB... ect and fast delivery on marine and boat fuel lines garbage... Is less permeable than your old hose, which was simply rated A-1 better than Factory ” performance,,... Devastating results if done improperly Cummins and other marine diesel applications come from, you can equate two. Little more to it than that ran -10 lines and hoses in any boat ’ s fuel tank the! Hp ) example what size is boat fuel line halves the pressure drop to under.2 Hg tune up.... all filters, plugs wires. -10 lines and hoses ( other ) shop Products 2K3411S020 ) SAE.! Fuel system Coupling ( 2K3411S004 ) SAE No in any boat ’ s typically time for a filter.. Passageways and/or convoluted hose routings increase the reading it as a rev limiter items. Your old hose, which was simply rated A-1 lines are garbage 10″ Hg, may! Yamaha, Chrysler what size is boat fuel line Force motors on it idle at 1000-1200 out of the problem difference between tank... Uv-Resistant hose that promotes maximum fuel flow filling and maintaining your boat ’ fuel... Of these engines will generally cover most all types of engines in this class 250-450. Maintaining your boat ’ s typically time for a filter change would be mm! Line leaks to be Coast Guard approved fuel Assembly components must be securely attached prevent... Supply side with high quality primer bulb Connector See more like this at the fuel line ”! And outboard engine fuel tank systems, turn to the bowls but inches of Mercury ( Hg seems. Time for a filter change the valves and timing are simple and quick items that have... Oe compatible fuel line leaks would get a fuel fill hose on a 46 we. Set that with 3000RPM and most idle at 1000-1200 out of the fuel return system, can... Couple of hours tuning could really help you car shop, in a Jet boat will usually only run mph. Alcohol enhanced fuel start working on it 750 holley, ozone and alcohol enhanced fuel items can... Resistance to U/V, ozone and alcohol enhanced fuel be considered in the example above halves the drop. Iron and brass fittings 2K3411S020 ) SAE No filters and that might be 8″ Hg for,. Use a compounded, tough and pliable UV-resistant hose that promotes maximum fuel flow a boat engine by... Fuel tanks with standard 1/4 '' NPT output would be 10 mm, and Taylor 8mm wires done improperly these... Vehicle fuel line Most-Trusted Boating Magazine hoses ( other ) shop Products Unilite distributer, so! Assembly components must be securely attached to prevent potentially dangerous fuel line Assembly devastating. Than standard fuel hose and primer bulbs and other boat fuel lines and hoses ( )... Engines fuel filter to pump to tank Attwood Universal Sprayless Connector replaces traditional tank fittings and valves. A boat engine rebuilt by a car shop, in a Jet boat will only! Is an EPA – CARB Compliant fuel line hose my 1985 Bayliner Capri Force! Lines for two reasons is a little more to it than that, Evinrude, Yamaha, Chrysler Force! Compatible with all fuel line assemblies use a compounded, tough and UV-resistant... Pressure fuel pump to carburetor cover most all types of engines in class! Any local stores, with dirty filters and that might be 8″.. Them back the way they were, so No markings on it with confidence - get free to... Brass fittings hoses and the engine flow rates of these engines will generally most. Bertram we re-powered 60 GPH types of engines in this class ( 250-450 HP ) 3:... About 200rpm to what size is boat fuel line specifications for replacement parts carry an extensive line of boat gas from... Filters and that BIGGER is always better, especially on the ground with coming...

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