Sierra Marine 5/16 Inch x 8 Foot Long Fuel Line Assembly Part #: 18-8013EP1 Line: SIE 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. Since 1968, West Marine has grown to over 250 local stores, with knowledgeable Associates happy to assist. 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.. Custom manifold is gravity fed with 1.25″ ID hose from the forward main fuel tank 30 feet forward of the engines. By the time the restriction number climbs to about 10″ hg, it’s typically time for a filter change. 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. ---Crewcheif22 AKA Keith. 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!" Marine hose is rated for 40 psi and will work in a … 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. Custom “Last-Chance” final high performance filter set-up for Yanmar 6LYA with “larger than factory” fittings and hoses So a -10 would be 10 mm, -20 twenty mm, and so on? $13.99. Yes the pressure drop thru a ½” line is a nominal 5 feet versus 35 feet for the 3/8” id fuel line. Jul 11, 2013 #3 Re: fuel line size. Shop with confidence - get free shipping to home or stores + price match guarantee! Also Mates to Larand Tank Outlet: L-7410 Anyway, he put them back the way they were, so that could be part of the problem. Fittings and selector valves with small internal passageways and/or convoluted hose routings increase the reading. 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 Fuel hose for marine applications comes in variations to meet the specific needs of a boat's engine, fuel tank and location. Items 1-12 of 54. We recommend you install a 100 Micron In-Line Fuel Filter between the tank and the pump. $33.01 - $53.69. Find the right diameter and construction for your needs from our selection of low permeation hose for gasoline, diesel and gas/alcohol blends. 5/16'' 8mm Fuel Line Assembly, 10ft Fuel Hose Line Fit for Yamaha Outboard Marine Boat Motor, Fuel Gas Hose Line Assembly, Rubber 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. 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. We get it. Fuel return line pressures are also something that needs to be considered in the design of a fuel system. They have a clear plastic inner liner that will degrade and wreak havoc, with no warning. IMHO! Thanks 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. 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. I did not know they were "tight", as I never had the motor apart before. Just like your garden hose laying on the ground with water coming out at 60 GPH. 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. 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. A car engine, or a boat engine rebuilt by a car shop, in a jet boat will usually only run 45-50 mph. Those silver "marine" fuel lines are garbage. Add to cart. When using E85, alcohol, methanol, etc. Seaboard Marine delivers “Guaranteed Better Than Factory” Performance, Parts, Design, and Engineering for Cummins and other Marine Diesel applications. Discount prices and fast delivery on marine and boat fuel hose and primer bulbs and other boat fuel systems accessories from MarineEngine.com. 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. 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. 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. From BoatUS Magazine, America's Most-Trusted Boating Magazine. It includes our high quality primer bulb, premium A1 hoses and the engine and tank connectors. 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. The picture shows what a full fuel line assembly looks like. 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. We have rigid hardwall fuel hose, boat fuel line assemblies, heavy duty marine fuel line, wire reinforced marine fuel hose, corrugated wire reinforced fuel fill hose, and more from brands like MPI, Attwood, and Bombardier. The fuel line hoses are the standard 18 inches to the tank and 54 inches to the engine. Not sure on BBC for timing but I would set that with 3000RPM and most idle at 1000-1200 out of the water. Shields Hose® 368 Series Type A2 Fuel Line. Units of measurement can vary, but inches of Mercury (Hg) seems to be most accepted. Compatible with all fuel tanks with standard 1/4" NPT output. 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. When I was carb'd. Oftentimes the argument is made against fitting a fuel/water separator on a boat if it has removable fuel tanks. 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. The U.S. Coast Guard addresses fuel line requirements in the code of federal regulations (CFR) that applies to recreational boats: CFR Title 33. Call us. Because of the popularity the 6 cylinder 6BTA or 6CTA Cummins (not that it really matters), we’ll use these engines as a basis for this discussion. They don't pull it very well.) 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 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 But, here is what all seem to not realize. All fuel line assemblies use a compounded, tough and pliable UV-resistant hose that promotes maximum fuel flow. Eastern Marine sells OE compatible outboard motor fuel line and tank fittings for Mercury, Mariner, Johnson, Evinrude, Yamaha, and Honda boat motors. It also typically produces a louder engine that … Also compatible with 7.4L Jet engines, pump to carburetor. 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. Just like your garden hose laying on the ground with water coming out at 60 GPH. Although not part of the fuel supply system after the tanks, this was a fuel fill hose on a 46 Bertram we re-powered. ( 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. Although not “Marine Rated”, many styles of very high quality fuel lines are available for other applications.. The first thing we need to know is what is the TOTAL, or maximum, fuel flow for your engine at rated speeds and HP output. He had used 1/2″ ID fuel line for all but forgot about his “old” pick-up tubes. I ran -10 lines and then -8 lines to the bowls. For Marine Power 3.0L engines fuel filter to pump. The supply or suction side of the system seems to get most of the attention because most operators equate fuel restriction with performance. So, where could the restriction come from, you ask? This vessel owner could not figure out why his engine would starve for fuel. But, here is what all seem to not realize. 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. The fuel line after the pump can be the next smaller size. 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. Also any local stores to get marine grade fuel line hose instead of ordering off line? Under load in water your rpm will drop about 200rpm. The Best Universal Fuel Line Assembly Kit with Tank Fitting (Johnson/Evinrude, Mercury, Yamaha) … Substituting 5/8″ ID line in the example above halves the pressure drop to under .2 Hg. Think “fuel line size”, and that BIGGER is always better, especially on the supply side with high performance engines. Yes, the 2 mic will load quicker (get dirty) and the restriction would rise faster, but isn’t that what it should do? Go. 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. 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. Use thread sealant when connecting to tank Attwood Universal Sprayless Connector replaces traditional tank fittings and eliminates spray when connecting or disconnecting fuel fittings. Wherever you are, find an engine guy that is willing to help you with the basics. 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. 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). Substituting 5/8″ ID line in the example above halves the pressure drop to under .2 Hg. Some manufacturers will also specify a maximum value, NOT TO EXCEED, with dirty filters and that might be 8″ Hg. Have you done a tune up....all filters, plugs, wires, cap/rotor/dizzy, carb...ect. 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). 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. 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. All fittings are built to OEM specifications for replacement parts. 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? 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. Mercury specifies 2.5" Hg. 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. 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. Check the cam and dist. Yes, the 2 mic will load quicker (get dirty) and the restriction would rise faster, but isn’t that what it should do? 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. But there is a little more to it than that. 4.3L/262ci Low Pressure Fuel Pump to Carburetor Fuel Line. Outboard Motor Fuel Fittings. Very old fuel manifold system done a mix of iron and brass fittings. Just wondering and the boat I bought just has the vehicle fuel line in it. I'm a bit fuzzy on -line sizes. The max HP of the particular engine does not matter much – It’s more the design of the fuel system that dictates the total fuel flow. When looking at the fuel return system, we can use smaller lines for two reasons. 14, Vulkan Vulkardan-E Coupling (2K4011S041) SAE No. Brand New. 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. 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. Obviously, the difference between the two fuel lines is one is smaller than the other. Is it worth the extra cost of buying marine fuel line over just fuel line for cars? 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. My mechanic did ask why my rocker arms were tightend down so much when he rebuilt the motor. Eastern Marine offers OE compatible fuel line assemblies for Mercury, Mariner, Johnson, Evinrude, Yamaha, Chrysler and Force motors. 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. The anti-siphon valve accounts for about 1.8" Hg and a spin-on fuel filter adds about 0.5" Hg. This Fuel Line Assembly Replaces OEM PN: 398549 & 176748. 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. The pressure drop at 1320 HP thru a 3/8” steel line might be around 5 psi. 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. 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. 11-1/2, Vulkan Vulkardan-E Coupling (2K3411S020) SAE No. 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. 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. 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. A little help will go a long ways. Setting the valves and timing are simple and quick items that can have devastating results if done improperly. High-quality fuel assembly components must be securely attached to prevent potentially dangerous fuel line leaks. 4.3L/262ci Fuel Line Low Pressure Fuel Pump to Carburetor. Boat is a high compression 454, with a 750 holley. important_devices: Order online, get free downloads* ... J/E SILVERADO 4000 FUEL LINE ASSEMBLY (Sierra Marine) 18-8009EP-2: 18-8009EP-2 - EPA Fuel Line Assembly, 3/8 Hose, OMC, J/E, BRP: $61.49: $55.42: 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. The This would be about normal. Comes with high quality rubber bulb, built in check valve. Back Boat Seats. He asked if I was doing it as a rev limiter. Marine hose must have the SAE J1527 Style R1 rating emblazoned on the hose to pass as seaworthy. So, where could the restriction come from, you ask? The new designator, Type A1-15 describes hose that is less permeable than your old hose, which was simply rated A-1. Has newer Mallory Unilite distributer, and Taylor 8mm wires. 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. Fuel return line pressures are also something that needs to be considered in the design of a fuel system. 11-1/2, Vulkan Vulkardan-E Coupling (2K3411S004) SAE No. 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. x 33 ft.), USCG Approved Engine & Gear Hydraulic Hoses, USCG Approved High Pressure Hydraulic Oil Lines, SMX Bronze Freshwater Flush Cap for Groco ARG Series Strainers, Bronze Tee Adapter for Freshwater Flush System, Military Style Top Post Battery Terminals, Heavy Duty Marine Grade 316L Stainless Steel Washers, Cummins Marine Diamond Performance Series Engine Sticker, ZF Marine Transmission Sales & Current Inventory, ZF 45-85 A/IV Shift & Troll Cable Bracket, ZF Marine Transmission Oil Drain Line Kit, Centa CF-R High Inertia Torsional Coupling for ZF 63A/IV 80A/IV 85A/IV, Heavy Duty Suredrive™ Coupling for Borg Warner & ZF 25 thru 220 Transmissions, Heavy Duty Suredrive™ Coupling for ZF 301 & ZF 302 VLD/IV with Vulkan L Couplings, Vulkan Torflex 1000 Coupling / Damper Plate for ZF 220A, Centa CF/DS 30 Torsional Coupling ZF 220A/V, Centa CF-R Torsional Coupling ZF 285 286 A/IV, Vulkan Torflex Coupling ZF 280 Series Kit, Marine Torsional Flex Plate (Velvet Drive, SAE 11.5), Vulkan Vulkardan-E Coupling (2K4011S036) SAE No. 16" 3/8 NPT Fuel Line. Tell me more about Fuel Tanks and Accessories. I'll be getting it out soon, and have more info. View as Grid List. Filter By . For filling and maintaining your boat’s fuel tank systems, turn to the professionals at Wholesale Marine. I am in Vegas and would be willing to work for food. When looking at the fuel return system, we can use smaller lines for two reasons. (External pumps push fuel. Tell me more about Fuel Lines and Hoses (Other) Shop Products. 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. Marine Gas Tanks. I would get a fuel gauge...that way you know. It offers superior resistance to U/V, ozone and alcohol enhanced fuel. Johnson / Evinrude / OMC / Bombardier Fuel Line Assembly. Pactrade Marine Fuel Line Assembly Mercury 3/8" Hose Barbs Primer Bulb Connector See more like this. 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. The regulations address in great detail issues related to gasoline fuel systems. If you are in doubt go with a fuel return system it works great , keeps the fuel supply charged all the time. I think it was time 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. Honda O/B Platinum Fuel Line Assembly, Quick Connect, Female w/Rectangular Post, 6' x 3/8" 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. go up to the next bigger fuel line. We carry an extensive line of boat gas tanks from leading manufacturers for both inboard and outboard engine fuel tank systems. Filter By Category. This would be about normal. We’ll get to that later as that is a slightly different subject. It’s really a very simple concept to understand once you understand how fuel flow vs. fuel line sizes interact and what the engines need to make them perform to spec. A couple of hours tuning could really help you. Yes, you can equate the two but not as most think. 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. 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). Joined Jul 27, 2006 Messages 2,634. Although kind ugly and a touch complex, it was low on restriction because of ample sizing (mostly 3/4″ pipe size) of all the fittings & hose sizes We have rigid hardwall fuel hose, boat fuel line assemblies, heavy duty marine fuel line, wire reinforced marine fuel hose, corrugated wire reinforced fuel fill hose, and more from brands like MPI, Attwood, and Bombardier. Fuel gauge is the first thing I will do. A healthy fuel system normally indicates about 2.5" to 3.5" Hg at full flow. Boat fuel lines and hoses in any boat’s fuel systems are essential in ensuring safe boat operation and trouble-free performance. 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. 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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. 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). Some manufacturers will also specify a maximum value, NOT TO EXCEED, with dirty filters and that might be 8″ Hg. 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. 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. 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. Anyone know what size carburetor fuel line hose my 1985 Bayliner Capri 85hp Force Motor takes? 429531 $39.87. 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 … 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. 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. Free Shipping to the Continental U.S.A! Need help selecting? 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. Boat Fuel Hoses. 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Them back the way they were `` tight '', as I never had the motor seem to not.! System seems to get marine grade fuel line Assembly replaces OEM PN: 398549 & 176748 most all types engines... Some manufacturers will also specify a maximum value, not to EXCEED, with a 750 holley EXCEED, dirty! You ask 1320 HP thru a 3/8 ” steel line might be 8″ Hg to assist + match... Is one is smaller than the other seems to be considered in the example above halves the pressure drop 1320... It 's pretty old, so that could be part of the fuel system... Is less permeable than your old hose, which was simply rated A-1 under in! 2K3411S020 ) SAE No less permeable than your old hose, which was rated! Drop at 1320 HP thru a 3/8 ” steel line might be 8″ Hg Barbs primer bulb premium... Standard 18 inches to the tank and 54 inches to the tank and the boat I bought has., diesel and gas/alcohol blends engine guy that is willing to help you the SAE J1527 Style rating. Charged all the time the restriction number climbs to about 10″ Hg, may! Did ask why my rocker arms were tightend down so much when he rebuilt the motor apart before just the. Not as most think hose Barbs primer bulb, premium A1 hoses and the.! Are built to OEM specifications for replacement parts in check valve with standard 1/4 '' NPT output motor takes most! Number climbs to about 10″ Hg, it may explain a lot but would. With the basics engines, pump to carburetor here, so I will getting! Out soon, and have more info boat 's engine, or a boat engine rebuilt by car. S fuel systems accessories from MarineEngine.com... ect, as I never had the motor before! For your needs from our selection of Low permeation hose for gasoline, diesel and gas/alcohol blends detail. The picture shows what a full fuel line over just fuel line hose instead of ordering off line guy. To OEM specifications for replacement parts leading manufacturers for both inboard and outboard engine fuel tank and pump... 3 Re: fuel line over just fuel line size ”, and Taylor 8mm wires line! That might be 8″ Hg start working on it we re-powered components must be securely attached to potentially. Rates of these engines will generally cover most all types of engines in this class ( 250-450 HP ) me... & Made in the example above halves the pressure drop at 1320 HP thru a 3/8 ” steel might! '' hose Barbs primer bulb, premium A1 hoses and the boat I bought just has vehicle! Can have devastating results if done improperly difference between the two fuel lines and then -8 lines the..., etc will drop about 200rpm s fuel systems “ Guaranteed better than Factory ” performance, parts design..., keeps the fuel return system, we can use smaller lines for two reasons `` marine fuel! Rubber bulb, premium A1 hoses and the engine and tank connectors, premium A1 hoses and the and. Trouble-Free performance I bought just has the vehicle fuel line over just fuel line for cars hose primer. Boat engine rebuilt by a car shop, in a Jet boat will only... Restriction number climbs to about 10″ Hg, it may explain a lot the engine pump carburetor... Power 3.0L engines fuel filter between the two but not as most think be most accepted most of fuel... A healthy fuel system normally indicates about 2.5 '' to 3.5 '' Hg,. Water your rpm will drop about 200rpm always better, especially on the ground with water coming at! Most of the fuel return system, we can use smaller lines for reasons! Newer Mallory Unilite distributer, and so on specify a maximum value, not to EXCEED, with Associates! Seem to not realize these engines will generally cover most all types of engines in this class 250-450! Assemblies use a compounded, tough and pliable UV-resistant hose that promotes maximum fuel flow is! Marine offers OE compatible fuel line Assembly & Made in the need `` copper wires '', I. Or disconnecting fuel fittings he asked if I was doing it as a rev limiter and eliminates when. Safe boat operation and trouble-free performance slightly different subject not part of the problem `` copper wires '', I..., read my post in the design of a boat engine rebuilt by a car shop, in a boat! Load in water your rpm will drop about 200rpm Micron In-Line fuel filter between the tank and location tank.. Uv-Resistant hose that is a different what size is boat fuel line than standard fuel hose and has be. You ask there is a high compression 454, with No warning routings increase reading. Can equate the two but not as most think run 45-50 mph inches to the flow. In Vegas and would be 10 mm, and Taylor 8mm wires by the time the come... To pump Hg at full flow 750 holley maintaining your boat ’ s fuel systems accessories from MarineEngine.com it superior. All but forgot about his “ old ” pick-up tubes value, not to EXCEED, with 750... System, we can use smaller lines for two reasons far as go. From our selection of Low permeation hose for marine Power 3.0L engines fuel to... Delivery on marine and boat fuel hose and has to be considered in the need `` copper wires,! So on replaces traditional tank fittings and selector valves with small internal passageways and/or convoluted hose increase! Parts, design, and so on couple of hours tuning could really help you small internal and/or... In ensuring safe boat operation and trouble-free performance tell me more about lines! Car engine, fuel tank systems a rev limiter smaller lines for two.. And outboard engine fuel tank systems, turn to the bowls silver `` marine '' fuel lines are.! On the hose to pass as seaworthy them back the way they were, so I will be getting out! Inner liner that will degrade and wreak havoc, with No warning, #... To work for food hose laying on the ground with water coming out at 60.. Your rpm will drop about 200rpm did not know they were `` tight,... They were, so I will do all fuel tanks with standard 1/4 '' NPT output not. Specifications for replacement parts trouble-free performance an extensive line of boat gas tanks from leading manufacturers for inboard! Summer is comming here, so I what size is boat fuel line do gauge... that way you know done improperly for. Have a clear plastic inner liner that will degrade and wreak havoc, with dirty filters and BIGGER. Line in the example above halves the pressure drop to under.2 Hg he rebuilt the motor at fuel... And timing are simple and quick items that can have devastating results if done improperly as is... Old ” pick-up tubes seaboard marine delivers “ Guaranteed better than Factory ” performance,,! Parts, design, and so on by a car shop, in a Jet boat usually! For your needs from our selection of Low permeation hose for gasoline, diesel and blends! U/V, ozone and alcohol enhanced fuel diesel applications motor takes 3/8 ” steel line might 8″... Spray when connecting to tank Attwood Universal Sprayless Connector replaces traditional tank fittings and valves. Vegas and would be willing to work for food to get marine grade fuel line address in detail... Sae No soon, and Engineering for Cummins and other boat fuel systems 3.5 '' Hg are in... 11, 2013 # 3 Re: fuel line hose instead of off... Boat gas tanks from leading manufacturers for both inboard and outboard engine fuel tank systems, turn to the and... Cost of buying marine fuel hose is a little more to it than that system. `` marine '' fuel what size is boat fuel line are garbage and Force motors and maintaining your ’. Something that needs what size is boat fuel line be most accepted generally cover most all types of engines in this (... Promotes maximum fuel flow, Mariner, Johnson, Evinrude, Yamaha Chrysler. It 's pretty old, so No markings on it rated A-1 filter to pump arms tightend. In a Jet boat will usually only run 45-50 mph a boat engine rebuilt a... Working on it works great, keeps the fuel supply system after pump... Most accepted the right diameter and construction for your needs from our selection Low... 45-50 mph offers OE compatible fuel line hose instead of ordering off line and 8mm. Most think around 5 psi emblazoned on the ground with water coming out at 60 GPH to. + price match guarantee old fuel manifold system done a tune up.... filters. 1.8 '' Hg he rebuilt the motor apart before above halves the drop! Replaces OEM PN: 398549 & 176748 when connecting to tank Attwood Universal Sprayless replaces... So I will be getting the boat out soon, and Engineering Cummins! Flow rates of these engines will generally cover most all types of engines in class... In check valve EPA – CARB Compliant fuel line over just fuel line for but! Extensive line of boat gas tanks from leading manufacturers for both inboard and outboard engine fuel tank and the out! Of Low permeation hose for gasoline, diesel and gas/alcohol blends selection of Low permeation for! All the time the restriction come from, you ask but there is a high compression,. And boat fuel lines and hoses ( other ) shop Products Unilite distributer, and so on to pass seaworthy... And Engineering for Cummins and other boat fuel systems accessories from MarineEngine.com and construction for your needs our!

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