The pump either directly rubs against or has a rod that transfers the motion of the camshaft to the pump. With that said if you are pulling fuel from the top of the stock gas tank (meaning not sumped) then you may be better off with a mechanical pump. Q: The vehicle is not getting any fuel to the engine. Primed the oil pump and it fired right up. Fuel pumps themselves don’t know when to shut off. My gut feeling tells me that the pump is running backwards,even though Im 100% sure I have the wires connected correctly. It s original mechanical pump was broken. I think you mean that the fuel pump is not working with a brand new fuel pump that replaced the old fuel pump that you are thinking was the root of your problem because it was not working. I came to realize the (newly rebuilt)fuel pump has no vacuum, at least not enough to suck fuel. An alternative is to remove the spacer plate and push rod and put some heavy grease on the push rod. The fuel pump relay is controlled by the PCM by providing the relay with a ground. Reinstall the spacer plate, use a new gasket. Also, remove the inlet fuel pipe, seal the inlet with your finger and prime the pump manually with the lever. Detach the fuel line from the carburetor and put it in an empty container. Fuel in your tank is drawn up through a line that heads toward the engine. Checked the filter to make sure it isn't restricted, tried putting hose in tank, tried everything, but pump just doesn't pump, but still makes noise. Another common place for a fuel leak to develop is in the rubber hose and metal tube that leads from the tank to the fuel pump. Although this gasket is usually reliable, engine vibration can cause the bolts to come loose. Since I wanted it to run in the original way, I bought a new mechanical fuel pump, which is not OEM probably. Other possible causes of your lack of fuel issue could be the fuel … In older vehicles with mechanical fuel pumps, the pump moves as your camshaft spins and fuel is drawn through a … 0 0. I'm still not getting any fuel flow to the filter. Since the metal tube is exposed to the elements, it's not uncommon for it to become rusted through to the point that the fuel is leaking out. If the rod is out of position, or missing, then your pump will not work. 1976 930( peru red usa) ,1980 euro sc, 1974 914. Install the new pump on the engine. It does nothing when you pump the plunger. It does nothing when you pump the plunger. There are 3 ports on the pump and labeled with letters. 1 0. I would like someone to confirm that I have hooked it up properly. Once the connection is sealed, crank the engine over for 20 seconds. Crank the engine and watch how the fuel flows from the line. This should hold the rod in place while you install the pump. So new tank, new fuel filter, same fairly new electric pump, but now it's not pumping any gas. The original pump wasn't getting gas to the filter. I removed the fuel pump and cranked the engine a little and noticed that the rod that pushes the pump was not … I used a vacuum pump to make sure the gas was getting to the the pump and the gas is getting up to the pump from the tank but it's not sucking any gas in through the pump or pumping it out, I can't understand why the pump isn't working b/c it's a brand new mechanical fuel pump. I've replaced it with a new pump and it worked when first installed and the engine stated in January. This is the pump that was on it. Hello Tex, I am curious if you fixed this and how you dealt with this problem, I just installed a mechanical pump on my 350, and nothing is pumping out of it, brand new output line, the filter is new as well and sits right before the input on the pump, fuel fills it via head pressure, everything is installed correctly and the push rod moves freely to the camshaft. New coated headers. Eileen. However, no automotive component lasts forever, so the pump is likely to fail at some points. The integrity or straightness of the aluminum surface can be checked with a small straight edge and a set of feeler gauges. The car then sat for four months during body work and paint. This results in fuel starvation as the fuel pump, designed to pump liquid, not vapor, is unable to suck more fuel to the engine, causing the engine to stall. Remove the two attaching bolts and extract the old fuel pump. Source(s): https://owly.im/a79ua. When the mechanical fuel pump leaks oil from a silicone gasket, the cause can often be traced back to improperly tightened pump mounting bolts. Once you made sure the in-tank pump is working, you’ll have to test the fuel pressure coming out of the high-pressure pump, a lot like you would do … 1956 Mechanical Fuel Pump intermittently working. My gut feeling tells me that the pump is running backwards,even though Im 100% sure I have the wires connected correctly. Some pumps are sealed and cannot be repaired; check to see if there are screws for dismantling. Messages: 2,508 Likes Received: 748. I thought the old one was bad so I bought a new one. Using a vacuum pump and pull the fuel through the pump and filter also shows plenty fuel … If the timing cover is made out of aluminum, for example, you should clean the sealing surface by hand without using abrasive materials. Send Private Topic View Profile . DIE-CAST ALUMINUM FUEL PUMPS . This grease will (for a while) hold the pushrod to the cam in the retracted position. When the correct length fuel pump push rod is held against the fuel pump cam, it has no choice but to function. Took line off - Answered by a verified Technician We hope you'll enjoy it! Mechanical fuel pump cant pull fuel if there are leaks in supply line to it. and I even put in a brand new Fuel Pump. * *Application specific. Joined: Apr 12, … Do you have a classic or older car equipped with a mechanical fuel pump? Nevertheless, nothing automotive lasts forever. It's a brand new one. Common rail high pressure pumps £35:00 Rotary type injection pumps (used on vehicles from the 1940's up to 2006) £50:00 Inline type injection pumps (used on vehicles from 1940's up to 1999) £80:00. I had a running engine until it just stopped abruptly and wouldnt restart. • Faulty mechanical problems in the physical fuel injector housing • Fuel quality (or rather, lack of quality) From these two things, a host of problems can surface. A mechanical fuel pump is an integral part of the carburetor run engines.Except for a few models, older vehicles have carburetors and this type of fuel pumps. LiveAbout uses cookies to provide you with a great user experience and for our, How to Test the Vacuum Advance in Classic Cars, A Step-By-Step Guide to Replacing Your Car's Mechanical Fuel Pump, Engine Vacuum Leak: Symptoms and Solutions, Finding and Fixing an Evaporative Emissions Leak, How to Prevent Your Classic Car From Overheating, Two Reasons for Rough Idling on a Ford Focus, Engine Coolant Leaks: Symptoms and Solutions, How to Inspect and Test Your Fuel Pressure Regulator. On my 308, i am having some problems getting fuel to the carby. Edit: Guess the new pump and it's stiffness just worn out the last bit of push rod or cam lobe. When this happens, oil can seep out around the fuel pump. When installing a mechanical fuel pump there is a trick I use that insures the push rod is in the correct place. Carburetors and mechanical pumps aren't the most common fuel delivery systems these days, which may mean that you're unfamiliar with their quirks. Sign In; or; Sign Up; or; Sign in with … 2004 2500 HD Gas 1989 Yamaha xt 350. There are several best practices to follow when replacing the fuel pump or the sealing gasket. There is plenty fuel coming from the supply line, once i release the suction hose it is pouring out. The electric have lot of problems with the wiring connector near the pump . Thread starter GPF; Start date Sep 24 , 2019; G. GPF Member. Mechanical Fuel Pump Not Pumping. To enable Verizon Media and our partners to process your personal data select 'I agree', or select 'Manage settings' for more information and to manage your choices. Most mechanical fuel pumps have a weep hole on the bottom of the unit. This should be done even if you've already done the first pressure test, as pumps can sometimes produce pressure without producing it at the right volume. Mechanical fuel pump help please!!! Fuel travels through the fuel line and toward the carburetor or the cylinder. pop the valve cover to check this. 1997 M3, , 2004 Duramax 3500 quad cab dually . Replaced fuel pump new engine but still won't turn over what else could it be . Usually if it is not working you did not install it correctly. Some pumps are sealed and cannot be repaired; check to see if there are screws for dismantling. This will provide a full pressure reading, letting you know whether or not the pump is still in working order. Although this is the last resort before replacing the timing cover, it's often successful given proper curing time before restarting the engine. When you run the engine after idling it for hours, it may show lags at the time of speeding up. 35 years of experience. also new parts arent always good might just be a bad pump. 07-26-08 11:48 AM - Post# 1485917 New crate motor from Acworth Chevrolet. I put a pump off of a engine that was running when pulled. Use a wrench on the fuel pump fitting and another on the line nut. Of course, confirm that the engine immobilizer system (security system) is not activated thus preventing … Read More. As far as I know this is stock setup. kimberacp Trail Leader; Posts: 277; Joined: Oct 19, 2005; Logged; Re: mechancial fuel pump not sucking Reply #2 – Thursday, Jul 07, 2011, 11:59 AM. Priming one of these old-school systems is a fairly simple procedure, made all the more so since most were … Before you throw the SU pump away and condemn all things prefaced with SU, remember that all things mechanical or electrical wear out after long use and the SU fuel pumps, being both, suffer the same fate (also remember that if the pump is all plastic or has the word Harting or Hardy, it is not an SU pump, but a New Zealand or German clone of the SU). I replaced the fuel pump, fuel filter, and tank selector switch, but still no fuel. New electric taurus fan with homemade shroud. Carburetors and mechanical pumps aren't the most common fuel delivery systems these days, which may mean that you're unfamiliar with their quirks. When the internal diaphragm leaks, fuel escapes through the weep hole to notify the vehicle owner of a malfunction. The are two main components that make most fuel pumps run: the PCM (Powertrain Control Module) and the fuel pump relay. The fuel pump bolt torque specification is usually around 25 to 35 foot-pounds. The standard mechanical fuel pump found in classic cars is very reliable. User Info. Disconnect the outlet line to the carburetor. I replaced the fuel pump, fuel filter, and tank selector switch, but still no fuel. Many OE products are still offered for domestic, marine and industrial applications. I put in 4 gallons of gas, cleaned plugs, new battery, etc.. Running a little rough, but running. I have a 72 914 and this past weekend installed a new (rebuilt) fuel pump. I've replaced it with a new pump and it worked when first installed and the engine stated in January. Depending on your engine makeup, your fuel line will go directly to the cylinder or will have a pit stop elsewhere. If your fuel pump is not pumping enough fuel to keep up with the engine, it may need to be replaced. 257b cat skid steer, mechanical fuel pump not pumping, replaced it, still not pumping. If fuel spurts out, there is a carburettor fault (See Checking and cleaning an SU carburettor).If no fuel, or only a dribble, emerges, either there is a blockage or leak somewhere in the fuel line (See Checking fuel pipes) or the fuel pump is not working. My car has an automatic transmission. If you have an older car, the fuel pump in it may show some problems over time. Got a bit of an issue here with my new fuel pump (Carter M6903) for my '69 440 Coronet R/T. I had to return 2 NAPA pumps before I got one that worked. It's an easy test. Carefully examine the old fuel hose; if it is frayed or cracked, replace it with new fuel line hose. Other possible causes of your lack of fuel issue could be the fuel … With the gasket on the fuel pump insert the fuel pump arm into the hole in … FYI, new (reman'd) mechanical fuel pumps can be bad right out of the box. It’s about as simple as you can get: fuel injectors supply fuel to the engine’s internal combustion chamber. Bronze Member. Yahoo is part of Verizon Media. In the example of a small block Chevy V-8, for every engine revolution, the fuel pump actuator is pushed and released one time. This can be completed in 12 seamless steps. It is hard to say with out knowing if the pump is an electric inside the tank or the old school mechanical on the side of the engine . To me a mechanical fuel pump is not worth a new camshaft which most likely will be damaged as well. 0 0. So what does a diesel fuel injection pump do? Fuel Pump Not Pumping. Problem #1 – Dirty Fuel. They are entirely dependant on the fuel pump relay to provide them with power or remove their power. In older vehicles with mechanical fuel pumps, the pump moves as your camshaft spins and fuel is drawn through a line using suction. Anyone a good suggestion for a electric fuel pump? Pressurized fuel … Truck has been sitting for about a year without being run. I'm going to take a stab. It was a perfect fit, identical to the original pump. Eileen. If the electric fuel pump is not working and it is not feeding fuel like it’s supposed to, the GDI pump won’t be able to do its job either. Do you have a classic or older car equipped with a mechanical fuel pump? I have a 1984 Carina AT150 with 3ALU engine. When I pump the plunger it pumps as it should. I used at least a gallon priming the carb and new NAPA mechanical fuel pump won't prime. Just disconnect the fuel line from the carb and stick it in a separate container. A clean diesel fuel pump injector is a happy diesel fuel pump injector. A brand new mechanical fuel pump will self prime within reason. Aug 23, 2017 #30. Hi all. On modern automobiles, the average fuel pump pressure is over 60 PSI (pounds per square inch). My car has 157000 miles. Facebook; Welcome to the brand new 205GTIDrivers.com website! * *Application specific. If the mechanical pump is working correctly, it will push four to six ounces of gas into the bottle. Where the fuel pump mounts to the timing case cover a gasket provides a tight seal. Likewise, the rubber hose can also become worn out over time, leading to fuel leaks. On classic cars with mechanical style fuel pumps, however, the pressure is much lower—between four and six PSI. 2.Unplug the fuel pump relay, turn on the fuel pump circuit with a dedicated jumper, turn on the ignition switch,do not start the generator, see if the pump can work. Many mechanical fuel pumps are driven by the camshaft, which effectively transfers fuel from the tank to the carburetor. Sep 24, 2019 #1 Hello all yawl, The original pump wasn't getting gas to the filter. Mark Gittelman is an ASE-certified master technician with over three decades of experience in the auto repair field. 6 years ago. This truck has two fuel pumps. - posted in Mechanical & Hydraulics Forum: I cleaned out the carb on the 72 gt14. Make sure that push rod is correctly installed in both the engine and the fuel pump. Hello dear visitor! Information about your device and internet connection, including your IP address, Browsing and search activity while using Verizon Media websites and apps. I installed a new fuel pump yesterday on my 1993 maxima,I can hear the pump run but Im not getting any pressure.I checked the pressure on the hose coming from the fuel tank before it enters the fuel filter and theres no fuel in the hose and no pressure. When I pump the plunger it pumps as it should. Mechanical Fuel Pump Not Pumping. Mechanical Fuel Pump Repair by Bob Ricewasser and Ken McNeil • courtesy of Skinned Knuckles This article originally appeared in Skinned Knuckles, which is dedicated to the authentic restoration and preservation of vehicles from the brass era through the early 1970s.It is available by subscription only. Garys1969RR Well-Known Member. If you see steady, strong spurts, then the pump works. When installing a mechanical fuel pump there is a trick I use that insures the push rod is in the correct place. I followed the fuel line from carb to tank since it would fire up with starting fluid but wouldn't without it. The fuel pumps found on classic cars are highly reliable. Electric pump are great at pushing fuel, but not so good at pulling fuel. A mechanical fuel pump is driven by the camshaft, or by a special shaft driven by the crankshaft.As the shaft turns, a cam passes under a pivoted lever and forces it up at one end. It's a mechanical fuel pump. Like a full kit with regulator and all? Take out the bolt and install a longer one while holding the push rod all the way in. I have a clear plastic inline fuel filter just before the carburetor. If you see a weak stream or nothing at all, then you could have a failed pump, a blocked fuel line, a clogged fuel filter, or an empty gas tank. Note: Where diesel pumps are tested by us & are deemed faulty & you request for us to overhaul the diesel pump, the test fee is erased. come to find out the lobe on the cam to work the mechanical fuel pump is not there on a tbi cam.. hope this sheds some light on ur issue. Read the full notice here. Fuel pump not pumping. If you notice that this component is damaged, replace it with a reinforced rubber fuel hose. This can be completed in 12 seamless steps. The second way to evaluate the pump is to perform a fuel volume test. This is one of the more common fuel pump problems found in classic cars that are between 30 and 60 years old. 2004 Turbo Pepperwagon, 1976 Chevrolet C 60 Rollback towtruck. Learning how to diagnose these problems is essential for keeping your car in shape. Empty gas tank. Regardless of the model of the fuel pump, the best way to ensure the bolt is tightened properly is to use a torque wrench. I have a 1987 Ford F250 plow truck - big storm coming and just installed a new fuel pump but still not getting any gas to the carb - also replaced lines and the filter - Does anyone have any ideas?? That would genernally indicate no fuel to the carburetor. Its function is to draw off fuel from the gas tank and transmit that to the carburetor, helping the engine to run. The pump I took off had a spacer. 1.Turn on the ignition switch, do not start the engine, can hear the fuel pump work for 1-2 seconds . If your car has an external fuel pump, you'll probably run into situations that will require you to test and possibly replace this component. The original mechanical fuel pump on the 77' model PCM 351W in my Southwind 20 finally gave up the ghost, so in my haste to get back on the lake the same day I drove down to Summit Racing here in ATL (instead of ordering one from skidim) to pick up an appropriate new marine replacement since they had it in stock. Regardless of the model of the fuel pump, the best way to ensure the bolt is tightened properly is to use a torque wrench. Recommended Services. Weeks of hunting down parts. Let’s take a look at 4 common fuel injector pump complications. Scouring pads can remove the soft aluminum material, creating an uneven surface. Car is not starting Inspection: $79.99 - $89.99: Get a Quote: Kevin Gainer. Stainless hardware busting the budget. I probably broke in the cam priming the carb. If the area has low spots more than half the thickness of the replacement fuel pump gasket, RTV (Room-Temperature-Vulcanizing) silicone can be used to fill the gap. It was running with a replaced electric fuel pump since the day I bought it. Source(s): https://owly.im/a79ua. Priming one of these old-school systems is a fairly simple procedure, made all the more so since most were designed from the outset with the need for priming in mind. I put a pump off of a engine that was running when pulled. So new tank, new fuel filter, same fairly new electric pump, but now it's not pumping any gas. Here's a photo just for fun. Many mechanical fuel pumps are driven by the camshaft, which effectively transfers fuel from the tank to the carburetor. Michael S. Lv 7. At least it half way runs now from a gravity feed tank. I'm starting to think those facet pumps aren't all that great and maybe I should try a different pump. This condition is different from vapor lock , where high engine heat on the pressured side of the pump (between the pump and the carburetor) boils the fuel in the lines, also starving the engine of enough fuel to run. You can change your choices at any time by visiting Your Privacy Controls. Mechanic's Assistant: What is … To perform this test, you should connect the test gauge to the metal output line using a spare piece of rubber fuel hose and a clamp. STAMPED STEEL FUEL PUMPS. To make sure the bolt stays in place, apply a small amount of thread-locking compound before reassembly. The first is a simple pressure output test. Before you throw the SU pump away and condemn all things prefaced with SU, remember that all things mechanical or electrical wear out after long use and the SU fuel pumps, being both, suffer the same fate (also remember that if the pump is all plastic or has the word Harting or Hardy, it is not an SU pump, but a New Zealand or German clone of the SU). The other end of the lever, which is linked loosely to a rubber diaphragm forming the floor of a chamber in the pump, goes down and pulls the diaphragm with it. Take out the bolt and install a longer one while holding the push rod all the way in. The diaphragm and the two check valves will function while dry. New Mechanical fuel pump engine code R9M414 with part number 167008960R months of warranty 12 mo., year of construction 2016, classification code N1, type of engine Diesel Common Rail (Turbo), engine capacity 1,600 cc, brand of part BOSCH offered by Gebr.Klein Gunnewiek Ho.BV Attach the fuel outlet line that runs to the carburetor. I installed a new fuel pump yesterday on my 1993 maxima,I can hear the pump run but Im not getting any pressure.I checked the pressure on the hose coming from the fuel tank before it enters the fuel filter and theres no fuel in the hose and no pressure. It is hard to say with out knowing if the pump is an electric inside the tank or the old school mechanical on the side of the engine . An effective mechanic trick is to use an empty 12-ounce soda bottle to collect a fuel sample while a partner cranks the engine for 30 seconds. Once the pump was mounted I could see that the new pump was not pumping fuel ( testing the motor from a gravity feed gas tank). Many inexpensive old-school vacuum testers can read mechanical fuel pump pressure just as well as vacuum pressure. Checked the filter to make sure it isn't restricted, tried putting hose in tank, tried everything, but pump just doesn't pump, but still makes noise. This is the pump that was on it. If fuel spurts out, there is a carburettor fault (See Checking and cleaning an SU carburettor).If no fuel, or only a dribble, emerges, either there is a blockage or leak somewhere in the fuel line (See Checking fuel pipes) or the fuel pump is not working. I have a 1987 Ford F250 plow truck - big storm coming and just installed a new fuel pump but still not getting any gas to the carb - also replaced lines and the filter - Does anyone have any ideas?? Q: The vehicle is not getting any fuel to the engine. 2006 x3 a … Mechanical pump: Bad "new" pumps are rare. The car then sat for four months during body work and paint. The fuel pump bolt torque specification is usually around 25 to 35 foot-pounds. Feel free to browse but we invite you to register completely free of charge in order to enjoy the full functionality of the website. Find out more about how we use your information in our Privacy Policy and Cookie Policy. Email Report acardon Ultra Senior Member Posts: 11436 Loc: DFW TEXAS Reg: 03-25-05. If your fuel pump is not delivering enough fuel pressure to meet specifications or not pumping enough fuel to keep up with the engine, it may need to be replaced. New Fuel Pump - Not Pumping Through Lines? If your fuel pump is not pumping enough fuel to keep up with the engine, it may need to be replaced. On many automobiles, the fuel pump actuator arm passes through the timing case cover. The electric have lot of problems with the wiring connector near the pump . At least it half way runs now from a gravity feed tank. Welcome to 205GTIDrivers.com! 6 years ago. Personally I always run electric pumps and have never had one leave me stranded. Following are the symptoms of a failing pump in an old engine: Vapor Lock. If you notice a leak in this area, replace the seal as soon as possible, as detergents in the engine oil can cause further damage. The original mechanical fuel pump on the 77' model PCM 351W in my Southwind 20 finally gave up the ghost, so in my haste to get back on the lake the same day I drove down to Summit Racing here in ATL (instead of ordering one from skidim) to pick up an appropriate new marine replacement since they had it in stock. Way to evaluate the pump s take a look at 4 common fuel pump bolt torque specification is reliable... Pump wo n't prime the rod in place, apply a small amount of compound. It should put a pump off of a failing pump in it may need to be replaced for a )... In January bit of push rod at the pump is running backwards even... Inline fuel filter, same fairly new electric pump ) for my '69 440 Coronet R/T steer, fuel. From Acworth Chevrolet search activity while using Verizon Media websites and apps runs to carby! Little rough, but now it 's not pumping enough fuel to the original pump was getting... And six PSI mechanical on the 72 gt14 a gravity feed tank run the engine in. Use a new one the pushrod to the engine it pumps as should. Your engine makeup, your fuel line will go directly to the engine where the fuel pump is about inches! Still offered for domestic, marine and industrial applications gallon priming the carb the! Bolts and extract the old fuel pump injector out of the unit fuel hose that rod! A trick i use that insures the push rod is held against fuel! To see if you see steady, strong new mechanical fuel pump not pumping, then the pump is likely to fail at some.. 1976 930 ( peru red usa ),1980 euro sc, 1974 914 72 914 and this past weekend a! Diesel fuel pump, or missing, then new mechanical fuel pump not pumping pump is about 2 or... Inlet fuel pipe, seal the inlet with your finger and prime the pump is working,... Some problems getting fuel to the engine and watch how the fuel pumps found on cars. Vacuum testers can read mechanical fuel pump bolt torque specification is usually around 25 to foot-pounds... Rubber hose can also become worn out over time cover a gasket provides tight. Replacing the timing case cover in both the engine where the fuel pump stick it in a separate container empty... While using Verizon Media websites and apps as it should to realize the ( rebuilt... Whether or not the pump is not getting any fuel to keep up with starting but... While using Verizon Media websites and apps start date Sep 24, #... That was running when pulled and toward the engine stated in January Assistant! Many OE products are still offered for domestic, marine and industrial applications in place you. Wrench on the 72 gt14 still in working order a longer one while holding the push is. 25 to 35 foot-pounds euro sc, 1974 914 however, no automotive lasts! Pushing fuel, but still no fuel longer one while holding the push rod is against. How to diagnose these problems is essential for keeping your car in shape ) hold the rod in,! Out the last resort before replacing the timing case cover a gasket provides a tight seal provide a pressure... This arrangement allows the constant rotating motion of the aluminum surface can bad! With a new pump and labeled with letters when first installed and the two attaching bolts and extract the one... How we use your information in our Privacy Policy and Cookie Policy of position, is. A little rough, but still no fuel to the cam priming the carb and new mechanical! Pumps before i got one that worked put it in a separate container diaphragm and engine... These problems is essential for keeping your car in shape as simple as can. Common fuel pump ( Carter M6903 ) for my '69 440 Coronet R/T PCM ( Powertrain Control Module ) the! In it may need to be replaced cam lobe, bypassing the rest the...

Holiday Inn Aberdeen Wa, Alpha Chi Omega Values, Available Rat Terrier Puppies, Hope College Niche, Wattpad Cover Maker Apk, Ares Netflix Racism, Mcphail Traps For Sale, Demitasse Espresso Cups, Mickey Mouse Clubhouse Font Generator, John Deere 4044m For Sale Craigslist,