Mercruiser Electric Fuel Pump Problems

Sticking out the right side of the fuel pump in the upper left is the arm that moves to pump fuel. As the fuel pump relay controls power to the fuel pump, any faults with it can cause issues with the fuel pump, which can cause drivability problems for the vehicle. MERCRUISER WATER PUMPS - SEA WATER SEA WATER PUMP 46- 807151A12 Fits GM V‑6 & V‑8 (454 & 502 cid) Gen VI engines with v‑belt and electric fuel DA: 85 PA: 41 MOZ Rank: 70 How to Replace a MerCruiser Water Pump. Mercury MerCruiser's maximum engine fuel temperature specification that became. The are two major issue that can cause the Blue Devil electric fuel pump to blow fuses. Replaces 861156a1: Amazon. Regular inspection of carburetor parts is recommended. An Electric fuel pump (for carburetion) should produce the same pressure (5-7 psi) as the earlier mechanical fuel pumps would have! The electric pump operation depends on a N/O Low Oil Pressure Switch being closed. 0 MPI/TKS - 181 cid. I pump the throttle control to start which puts gas into the carb. The assembly also includes the fuel pump sending unit, which is the sensor used to read fuel level. The fuel pump control module is part of the constant control relay module, or CCRM. 5 psi, so check your fuel pressure and adjust the regulator, if applicable. As previously said, the fuel pump is connected to the "I" terminal on the starter solenoid. after several attempts to start the starboard engine, there is no "whining" sound. If you hear that, your fuel pump is working. Sometimes there is no room to have a mechanical fuel pump in the engine compartment. 2 EFI MPI Fuel Injected engines. Read starting procedure. If the alarm is a steady BEEP, it is an over heat alarm. The newer v6 engines have electric fuel pumps and these do not seem to have the power to pump fuel through if the system needs priming. Story And Photos By Mark Corke. Quantum Electric Fuel Pump Mercury Marine Outboard 2000-2005, Replaces Mercury Marine 852521T1 Description: HFP replacement fuel pumps, modules, assemblies, and kit components are designed to meet or exceed OEM specifications, and feature upgrades that improve on the OEM design. CALTRIC ELECTRIC FUEL PUMP Fits MERCRUISER 5. Inquire About Purchasing A Fuel Pump Kit. The in-tank pump sends the fuel under low pressure to the pump located on the frame rail. Browse your favorite brands affordable prices free shipping on many items. A fuel strainer is attached to the fuel pump inlet line and prevents dirt particles from entering the fuel line and tends to separate water from the fuel. As previously said, the fuel pump is connected to the "I" terminal on the starter solenoid. How to re-wire a fuel pump off a relay. We test every pump that we sell. Find Dual Blue Electric Compact available for purchasing now online!. The problem is as follows: (1) After the engine is switched off, heat from the engine heats the fuel in the fuel line. Electric Fuel Pump For MerCruiser EFI MPI V8 305 350 454 502 PH500-M014 861156A1. Mechanical Fuel Pump vent tube. Many vehicles, including. Adding insulation, either store-bought or homemade with clothes pins, to the fuel lines and fuel pump transfers the excess heat to the insulation versus the fuel pump, thus preventing vapor lock from occurring. The fuel pump will not turn on ontil the pressure switch sees ~ 10-15 psi. Fuel Pump Kits; Johnson , Evinrude Fuel Pumps; Mercruiser , Mercury Fuel Pumps; OMC , Volvo Fuel Pumps; Other Fuel Pumps; Needle & Seat , Floats; Water Separating Filters and Kits; Gaskets. Electric Fuel Pump For Mercury. If I jump the fuel pump with 12V it will run. The pump siphons fuel from the gas tank and pushes it to the carburetor when the engine is cranking or running. 00 21615095 Volvo Penta Fuel Pump Assembly - REPLACES 3594444 21397771 21545138 3861355 3-4-2017 - (1) Left - OEM !!!!! FITS Most Volvo Penta Models, 4. I agree with Spannerman the electric pumps don't like priming the system, a friend of mine put a fuel bulb in the circuit so if it did run dry then all he had to do was squeeze the bulb a few. When putting in an aftermarket fuel pump or looking to get more fuel out of your factory pump, one mod worth doing is re-wiring that fuel pump. Please do not post used parts or boats For Sale in this area. Find Carter Marine Electric Fuel Pumps P61122 and get Free Shipping on Orders Over $99 at Summit Racing! Carter marine electric fuel pumps are your solution to dependable fuel delivery for your marine applications! Designed with OE fit and form, these pumps keep your fuel system running as smoothly and efficiently as possible. Boat fuel pumps carry fuel from the gas tank directly to individual engine cylinders. Carter offers a comprehensive product line including assemblies, universal electrical fuel pumps, first- and second-generation mechanical inline fuel pumps and other essential components. Mercruiser Inboard Sterndrive Parts. After it sits for awhile and cools down it will work normally without problems until you shut it down. com FREE DELIVERY possible on eligible purchases. It was working perfect but the bilge pump stop working and i think the water level reached the pump, And it cut out one day and now it dont start, I have taken the fuel pipe off the carb, tried to turn it over but no fuel pumping out, i have put a new fuel filter in. Hard to start, but will repeat process. Fuel temperature (at the engine's fuel inlet fitting) and the amount of vacuum required by the fuel pump to draw the fuel from the boat's fuel tank can contribute to vapor locking. 7 165 170 190. Many fuel pumps come with a standard one-year warranty guarantee and customers often have the option to expand the warranty for a fee. Featuring the best prices for Mount Compass T H. 3 Mercruiser Fuel Pump in stock and ready for shipping today!. upon the vehicle and also the problems you drive in. I have a 1999 mercruiser 454 mpi engine with and electric fuel pump starting problem. I am explaining the fuel pump and shift cable for a 1987 1988 and 1989 mercruiser 120,130, 135, and 140 horse power. 90-898301003 JUNE 2007 Page 5 / 10 Documents Similar To Mercruiser Warning Horns. Motor has never given me any problems until this weekend. Look for plugged filter or clogged lines, bad pump, stuck needle & seat, and fuel pressure. Fuel pump is failing. I have an electric fuel pump on a 4. com MerCruiser 4. The vacuum gauge can also diagnose improper valve timing, burned or stuck valves, sticking choke, leaking manifold, improper fuel mixture and more. Browse Overton's selection of top quality fuel pumps and accessories today. 7L/350 Fuel Pumps, Electric External and get Free Shipping on Orders Over $99 at Summit Racing!. Now, Holley EFI products power these cars and are dominating the performance world. Maybe the sound is traveling through mounts, fuel lines etc. So I bought a new mercruiser replacement pump and filled the housing with some Redline gear lube left over from a V-drive. 7 165 170 190. Enquire In Store. By swapping our redesigned pump assembly on to your Gen 5 or Gen 6 fuel pump we can increase your fuel system to an estimated 120 GPH mechanical self-regulated pump at 6-8 PSI. Fuel Pump - Electric Intank. Cross Ship - Leaves in 3-5 days. If I recall, GM likes to control fuel pumps with the oil pressure sensor. The camshaft has an eccentric that is designed to operate the pump's lever arm. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. - I can hear the fuel pump priming when I turn on the ignition. motor only had 14 hrs Complete fuel rail assembly with pressure regulator. We specialize in Volvo Penta Volvo Penta engines, outdrives, propellers, and other accessories, but we also carry MerCruiser, PCM, Cummins, Perkins, etc. Because the pump was low in the system, you had to seal off the fuel lines. With Mercury Repower Financing, you can easily power up everything from fishing boats, to runabouts, to cruisers with flexible financing on the engine. Motor will start and run 15 - 25 secondes and dies. 7 861155A3 V6 V8 carb: Electric Fuel Pumps - Amazon. , applications. Learn more at Holley. We are running that same engine in the 32 3W with a mechanical pump, over 1500 miles on it with no problem so far. the black nitrophyl can be a problem, so be sure it gets replaced. (this is a USCG regulation) In other words, engine oil pressure much reach/exceed X psi in order to close the circuit for fuel pump. Select MerCruiser Test Model HP Fuel consumption WOT; MerCruiser 3. This was used in "the old days" to bypass the resistor wire to the coil and supply 12 volts to the coil while starting only. 7L CARB ALPHA BRAVO 350 V8 2002-UP Low Pressure. PassLock Problem Mimics a Bad Fuel Pump Problem. But a $30 fuel pressure gage is cheaper to try first vs buying a $300 pump. These do not fail often, so, when diagnosing a fuel problem, be sure to inspect other system components before leveling blame on the fuel pump. Mine starts and runs forever without problems until you shut it down then the fuel pump doesn't come on. Ask it for full noise - circa 4200 in my case and it will go for about 2 to 3 minutes and then it starts missing or just cuts straight out. Please do not post used parts or boats For Sale in this area. From GM's factory COPO Camaro to NASCAR to your car, get the new standard in fuel injection with Holley’s fuel injection kits and EFI systems. Our systems deliver more power and a better throttle response, giving you the performance you need. With Mercury Repower Financing, you can easily power up everything from fishing boats, to runabouts, to cruisers with flexible financing on the engine. Rugged construction, including stainless-steel exhaust, ensures long-term, hassle-free operation. 1S 1155 9-35432 18-8868. fuel shot up in air. 1 LTR Volvo Engines Be SURE of the part number before you order!. However a friend did it on his 1995 5. 0 mercruiser fuel pump questions: 1: 1986 140 Mercruiser Mechanical Fuel Pump: 1: Mercruiser Alpha One 3. The fuel pump requires fuel for lubrication, and running it dry may damage it. Volvo Penta Marine 23306461 Fuel Pump. This chart is intended to be a helpful guide when troubleshooting your carburetor. I have an electric fuel pump on a 4. Whether it's in a manufacturing facility or our headquarters in Ohio, before we box it, we test it. 0 Mercruiser not getting fuel. Its the pump alone and the outer casing that some need to fit the bracket. All Mercruiser fuel pumps since the 1970's (or so) has a semi clear yellow tube on the top of the pump. 3l 262 cid EFI. The fuel pump's job is pretty self-explanatory: to pump fuel from the gas tank to the engine. 92 to 96 Mercruiser 7. com FREE DELIVERY possible on eligible purchases. Idle high 2003 mercruiser 7. Find CHEVROLET 5. 3 TKS - 262 cid. More manifolds and other parts will be added to this page later. An Electric fuel pump (for carburetion) should produce the same pressure (5-7 psi) as the earlier mechanical fuel pumps would have! The electric pump operation depends on a N/O Low Oil Pressure Switch being closed. If the heat rises and the car stalls, this may be an indication that the motor of the fuel pump is having problems. I have personally seen this, and if you have 40 PSI at the input to your carb, you will destroy the needle valves. 0L V6/V8 861155A3 at the best online prices at eBay!. Troubleshooting fuel pump problems is an important part of a marine engineer's job and it is easier to carry out the same once the working of the same is understood in a proper manner. Many vehicles, including. Drain any water and sediment that may have collected in the bottom of the bowl and flush with some clean fuel. com is a wholly owned subsidiary of Lighthouse Marine Distributors, Inc 2019. 3LX (2 barrel MerCarb) is fine all day at the lower RPMs ie 3000 ish or lower - no problems at all. Both engines were run after filter/fluid changes to prepare for storage. any chance you ran out of fuel these pumps dont prime well and you cant here them run when there empty I would try to prime the system first before you condem the fuel pump. 7L this W/E, I've done it on auto's before and it has always been easy. 0 Mercruiser not getting fuel. When the internal diaphragm leaks, fuel escapes through the weep hole to notify the vehicle owner of a malfunction. 1S 1155 9-35432 18-8868. Regular inspection of carburetor parts is recommended. Walbro #FRA-1-1 12V 4-6 PSI Fuel Pump $210. #: M60600 OEM: 861678A1 , 97401A2 , 97401A8 , 509404. The pump puts out too much pressure so you have to buy a regulator for it. I changed the fuel filter a few days ago. Barr / Indmar / Marine Power / Pleasurecraft. This is incase you loose oil pressure the motor will shut down/run out of fuel. They started making Rochester Quadrajet 4 barrel carburetors in 1965. 0l Sierra Gm. 3 TKS - 262 cid. Stock, Shipping and Warranty Once a problem occurs with the purchased. I pump the throttle control to start which puts gas into the carb. Electric Fuel Pump Kit - Mercury, Mercruiser, Yamaha 150-300hp EFI; More Views. 0 MPI/TKS - 181 cid. The MerCruiser manual also contains an advanced troubleshooting guide to help diagnose and correct any problem. - Engine is 2004 5. Both ends are threaded on fuel pump. 3 MPI 220hp 861156A1 861156A03 EFI. The most accurate method for troubleshooting the fuel pump on your Evinrude is to test the pump with a low-pressure fuel gauge while running the motor at various speeds with the propeller attached. This means taking your boat and motor to a nearby body of water, tying the boat to the dock, rigging the test equipment. Running the vehicle on an almost empty tank may cause the pump to sustain some damage. 3 Mercruiser in stock and ready for shipping today!. The problem is as follows: (1) After the engine is switched off, heat from the engine heats the fuel in the fuel line. There was no sound coming from the fuel pump (was not priming). 7 Mercruiser fuel pump. ) We also supply new Electric Fuel Pumps and are developing services for firewall-mounted Vacuum Tanks. Non-balance shaft, mechanical fuel pump, roller camshaft, one piece rear seal. now when truck sits any time, I just turn the electric pump on and let carb fill up before cranking, starts right up, I think fuel is either evaporating out or running back to tank, truck is kept in basement of house on concrete floor , if it was leaking fuel ,I would smell it. Electric fuel pump would not start, pulled leads and had 4V. Nick, by the early/mid 90's, GM was no longer machining the SBC engine blocks for the mechanical fuel pumps. Idle high 2003 mercruiser 7. Browse Overton's selection of top quality fuel pumps and accessories today. We work hard to offer our customers a comprehensive marine engine catalog that. Marine Parts Express is the largest retailer of marine engine parts in North America. I got a universal electric high volume marine pump from Summit Racing and it has worked like a champ. 2L Inboard engine prevents vapor lock. The tester fits most systems, except for Bosch, CIS-Jetronic, and GM throttle body systems. Inquire About Purchasing A Fuel Pump Kit. If fuel spurts out, there is a carburettor fault (See Checking and cleaning an SU carburettor). The task was sometimes messy. 0 - Duration: 4:00. 0 mercuiser shift cable. gm 262 v-6 1996-1997 4. The power valve in the bottom of the bowl must have a good gasket, or fuel can leak by the. Fuel Pump, Electric, 200 gph, 80 psi. Check sight tube for fuel. Electric fuel pumps can easily go bad from just sitting. When the internal diaphragm leaks, fuel escapes through the weep hole to notify the vehicle owner of a malfunction. Step 1: Know the indications of a failing fuel pump. Those are as follows: It's possible that the gears are binding up. Before condemning the fuel pump, it should be tested. How to Change Your Mercruiser Water Separating Fuel Filter. It is in case the diaphragm leaks, the fuel is burned rather than dropping into the crankcase. Refer to engine break-in procedure in the Operation and Maintenance Manual. starting problems + high idle mercruiser 3. A high volume and pressure of fuel is required to run an EFI system. An Electric fuel pump (for carburetion) should produce the same pressure (5-7 psi) as the earlier mechanical fuel pumps would have! The electric pump operation depends on a N/O Low Oil Pressure Switch being closed. If you do not hear the buzzing noise when you open the driver door, the fuel pump is not priming. Get the best deal for Carter Car & Truck Fuel Pumps from the largest online selection at eBay. Because the pump was low in the system, you had to seal off the fuel lines. 861156A02 $385. I got a universal electric high volume marine pump from Summit Racing and it has worked like a champ. Motor will start and run 15 - 25 secondes and dies. In some cases, the fuel pump assembly may also contain the FPCM. I was having a problem with fuel making its way into the oil. Fuel Pump Assemblies. Looking for info concerning Mercruiser Electric Fuel Pump Wiring Diagram? you are right here. 0 MPI/TKS - 181 cid. Because this job is very important and the location of the fuel pump is so difficult to access, the pump is built to be tough. It was hard to reach. 7 and SOME older 8. Fuel Pumps & Kits. 149-2140 Electric Fuel Pump. I have a 1999 mercruiser 454 mpi engine with and electric fuel pump starting problem. The are two major issue that can cause the Blue Devil electric fuel pump to blow fuses. I'd start with pulling one of the plugs. The fuel pump is responsible for delivering fuel from the gas tank to the engine. As previously said, the fuel pump is connected to the "I" terminal on the starter solenoid. 3 MPI fuel rail assembly. MerCruiser uses many different model electric fuel pumps. Whether it's in a manufacturing facility or our headquarters in Ohio, before we box it, we test it. Engineered to meet or exceed OEM specifications; Compatible with many GM V8 sterndrive applications. Engine Sensors (1) Fuel System Item Type. Now, Holley EFI products power these cars and are dominating the performance world. The pump puts out too much pressure so you have to buy a regulator for it. 0 mpi fully serviced, which included a new fuel filter when all was done, the fuel pump wont come on when you turn the key normally once you turn the key you can hear the pump priming for about 5 secs but now nothing happens, engine cranks but fuel pump not pumping has anyone any knowledge of this problem ??. but engine dies after that fuel is consumed. These pumps low pressure lift pumps match the required pressure and the gph fuel flow. For 50 years Sierra has been producing parts engineered to meet or exceed the specifications of marine engine manufacturers and has gained the confidence of engine manufacturers and boat builders to a point of supplying them with OEM parts. I am looking for an electric fuel pump # 3855276 for a 5. Comes With Tight Seal Washers / And Electrical Connector Plug. 4) Accelerator pump defective or blown out. com), but I still do not have a response from the Rinda. Hi, I Would love some advice please. The in-tank pump sends the fuel under low pressure to the pump located on the frame rail. This problem is caused when the fuel pump can't deliver a smooth flow of fuel to the engine; periodically, your engine receives only air when it was expecting to receive fuel. V G Parts New Electric Fuel Pump Replaces Mercruiser 861156A1 807949A1 V6 & V8 High Pressure, EFI MPI V8 305 350 454 502 861156A1 PH500-M014. This tube leads to the carburetor. If the fuel pipe leads away from the engine towards the fuel tank, you may have an electric fuel. 7 224 engines. It's to keep pressure off the fuel lines and to reduce the risk of a fuel leak or fire. Compare prices of Dual Blue Electric Compact and other comparable products. Replaces the Carter Pump on engines when the filter mounted on the engine is pointed down. Supersede; 861156A04. The fuel pump will not turn on ontil the pressure switch sees ~ 10-15 psi. Another is that you're having ignition problems. This MerCruiser manual covers all aspects of repair. With easy installation and 100% factory testing and approval, Carter is a leading manufacturer of complete fuel system solutions. 3X engine with high pressure electric pump (O. (Some circuit traces inside may burn open if a pump or other component has problems. Electric fuel pump for Mercury Mercruiser 4. Find Holley Fuel Pumps, Electric External and get Free Shipping on Orders Over $99 at Summit Racing! JavaScript Disabled. This video is to test a fuel pump on a Volvo Penta, but basically applies to all other brand and if the pump is electric you have to do is disconnect the battery and put a recipient where pick. could be any number of things but my 5. A seemingly simple task that can easily be compromised when outside issues affect the performance of the pump. Add To Cart. The in-tank pump sends the fuel under low pressure to the pump located on the frame rail. If a line has a pin hole it can spit fuel anywhere. GOSS Fuel Pump Electric Fpe-250A SP18939. 0 181 and 3. Most of the fuel pumps used on present-day vehicles are electric and located in the fuel tank. after taking the gas cap off and pushing the fuel rail valve. 3l 262 cid EFI. So, what I did is run an electric pump outside of the gas tank. Fuel Pressure on Throttle Body Fuel Injection Fuel Pump is 12 PSI. All Scorpion 350 and 377 models equipped with Gen III cool fuel 1A091623 and below; All Tow Sports 8. 149-2140 Electric Fuel Pump. If your boat does require a new fuel pump, Wholesale Marine has you covered. Runs all day and then stalls out , starts for ten second then stalls out and finally dont start anymore. Not responsible for typographical errors. 3 no power to fuel pump: 6: Mercruiser electric fuel pump issues: 7: Mercruiser Mag MPI 350 Fuel Pump(s) Replacement: 6: 97 Mercruiser 4. 99 CAN; Walbro FRB-13 Series Fuel Pump $224. Electric Fuel Pump For MerCruiser EFI MPI V8 305 350 454 502 PH500-M014 861156A1. You can rig a temporary 12V to the pump on a momentary switch and let it run for 15 seconds. However, some vehicles are equipped with inline or mechanical-style fuel pumps. I was having a problem with fuel making its way into the oil. Low Pressure, Electric Fuel Pump, 861155A-3 MCM/MIE 4. For 50 years Sierra has been producing parts engineered to meet or exceed the specifications of marine engine manufacturers and has gained the confidence of engine manufacturers and boat builders to a point of supplying them with OEM parts. Anybody else had issues with OEM mercruiser fuel pumps putting out too much pressure. Sniper fuel pumps are designed for carbureted applications. Motor has never given me any problems until this weekend. Replaces the Carter Pump on engines when the filter mounted on the engine is pointed down. Or you are a student, or maybe even you who simply need to know about Mercruiser Electric Fuel Pump Wiring Diagram. com is a wholly owned subsidiary of Lighthouse Marine Distributors, Inc 2019. Cranks but does not Start. Quantum Electric Fuel Pump Assembly For Volvo Penta Marine, Replaces 21608511 / 21545138 Quantum Replacement Mercury Mercruiser Outboard Fuel Pump 30-35-40-45-50. What purpose does the "Fuel Boost Pump" serve on my Mercruiser 8. Problems starting 4. JACustomer: 2001 SeaRay, Sundancer 260, Mercruiser 5. Holley Red Fuel Pump - Before or After Mercruiser Fuel/Water Filter I have positioned the pump after the filter element of Mercruiser. We specialize in Volvo Penta Volvo Penta engines, outdrives, propellers, and other accessories, but we also carry MerCruiser, PCM, Cummins, Perkins, etc. Enquire In Store. Electric fuel pump for Mercury Mercruiser 4. 7L V8 Please contact Ebay messages have any order problem. V G Parts New Electric Fuel Pump Replaces Mercruiser 861156A1 807949A1 V6 & V8 High Pressure, EFI MPI V8 305 350 454 502 861156A1 PH500-M014. The fuel pump on the. One engine exhibited symptoms at the end of this season of having some fuel in the oil. I've usually been able to dislodge or unlock a locked up pump by hooking up the wires in reverse an actuating the flapper a few times, maybe as many as ten times. I wrote an email ([email protected] This chart is intended to be a helpful guide when troubleshooting your carburetor. Fuel injected engines are VERY fussy about fuel supply and fuel pressure. Most mechanical fuel pumps have a weep hole on the bottom of the unit. New Mercruiser High Pressure Electric Fuel Pump 866169T01 5. The temperature of the car can also telegraph an emergency with the fuel pump. The most accurate method for troubleshooting the fuel pump on your Evinrude is to test the pump with a low-pressure fuel gauge while running the motor at various speeds with the propeller attached. the problem. Bad Mercruiser Fuel Pump May 14th, 2011, 07:50 PM I'm not sure if many people had this problem or not, so I'm going to just give a little story here about an experience with a Mercruiser fuel pump. For 50 years Sierra has been producing parts engineered to meet or exceed the specifications of marine engine manufacturers and has gained the confidence of engine manufacturers and boat builders to a point of supplying them with OEM parts. Hi, I Would love some advice please. Key Features. Easy-to-read 4 in. Mercury MerCruiser’s maximum engine fuel temperature specification that became effective January 1, 1996 is:. Engine Guardian is standard and averts potential problems with timely intervention, while the Cool Fuel Module prevents vapor lock. Pulled the device out of circuit and it ran the same. If you have fuel in the cylinders, you have an ignition problem. This electric inline fuel pump is designed to fit MerCruiser GM based V-8 305, 350, 377, 496, and 502 engines with Gen II Cool Fuel Module. The fuel turns into varnish and the pump fails. Electric fuel pumps are usually located inside fuel tanks, although they may be mounted outside them. Some anti-syphon valves are mounted to the fuel filter assembly on the outlet side. CALTRIC ELECTRIC FUEL PUMP Fits MERCRUISER 5. Remove two bolts, and the fuel pump is removed from the housing. This is incase you loose oil pressure the motor will shut down/run out of fuel. I replaced the pump 3 years ago shortly after buying the boat. This video is to test a fuel pump on a Volvo Penta, but basically applies to all other brand and if the pump is electric you have to do is disconnect the battery and put a recipient where pick. Since 1968, West Marine has grown to over 250 local stores, with knowledgeable Associates happy to assist. Sometimes there is no room to have a mechanical fuel pump in the engine compartment. Shop Fuel Pump 4. Once started, it ran okay, dieing once but restarted and we made back to the ramp. can ajust ny one adive. Prior to this not starting problem it was intermittent (sometimes it would start-sometimes not). 3L Sierra Marine Electric Fuel Pump for Mercruiser, Volvo, OMC - 18-7236 Mercruiser, Volvo and OMC V6 4. An Electric fuel pump (for carburetion) should produce the same pressure (5-7 psi) as the earlier mechanical fuel pumps would have! The electric pump operation depends on a N/O Low Oil Pressure Switch being closed. 0l carb alpha bravo 305 v8 2002-up(US $120. I replaced the fuel line, and rebuilt the carburetor at the same time (carb was pretty gummed up also, rebuild on a MerCarb is easy) after all was well. These do not fail often, so, when diagnosing a fuel problem, be sure to inspect other system components before leveling blame on the fuel pump. com FREE DELIVERY possible on eligible purchases. Not responsible for typographical errors. After the fuel pump, the fuel is under pressure and will seep out any unsealed areas as a fuel leak. Mercedes-Benz engines need constant fuel pressure to run correctly. The fuel pumps on most modern vehicles are electric and mounted in the fuel tank. It was working perfect but the bilge pump stop working and i think the water level reached the pump, And it cut out one day and now it dont start, I have taken the fuel pipe off the carb, tried to turn it over but no fuel pumping out, i have put a new fuel filter in. MerCruiser - Electric Fuel Pumps Click Here For Prices. Situation: A new Gen III cool fuel module is being introduced to replace the existing Gen III module. This electric inline fuel pump is designed to fit MerCruiser GM based V-8 305, 350, 377, 496, and 502 engines with Gen II Cool Fuel Module. Mercruiser Electric Fuel Pump Wiring Diagram Awesome 3 Mon Mechanical Fuel Pump Problems.