Mgb fuel pump leak. I did glance at a fuel .

Mgb fuel pump leak. Notice the union, item 85. Picture #2 shows what the rubber fuel line looked like when I peeled the braiding back. Disconnected tank outlet pipe and connected a length of fuel hose and blew into the tank… Oct 9, 2006 · Step 4: Remove the gas line fitting into the fuel pump from that disconnected line from gas tank Then, remove the fuel line that leads to front of car, inspect, and replace if worn Then, before taking the old fuel pump out, note position of unit inside mounting bracket. I noticed the fuel pump is wet; I think it only leaks when on. If the fuel pump runs now, then the clog is in the line inside the tank. Iirc, the fuel pump is a generic 2-4# variety that replaced the pump that was on the car when I bought it. Checking the inlet… Feb 1, 2020 · I’ll check both the hard line and fuel pump for leaks, pressure and flow. Immediate smell of petrol. When the car is level it does not leak. I would replace my fuel lines and clean my needles in the float bowl lids. The leak is from ?? just above rear axle drivers side when the ignition (and fuel pump) are turned on. I also Jul 2, 2015 · We're in the process of painting an MGB GT 74' and while the car was jacked up from the rear we noticed fuel leaking from the fuel pump. Don't think any pipes have parted because it got me home. Recently developed a fuel leak at the connection unit pictured, but only when the SU unit is powered. May need to squirt some lubricant on the hardware that the mounting bracket Jan 9, 2007 · SU Fuel Pump History First of all, a brief history of the SU Fuel pump. MG MGB Technical - installing new fuel pump This thread was discussed between 28/08/2010 and 30/08/2010 MG MGB Technical index This thread is from the archive. Doesn't leak otherwise. Moral of the story is don’t try to tighten the SU fuel pump banjo fittings whilst on the car – it’s easier to remove the pump with pipework. We would like to show you a description here but the site won’t allow us. The kit includes a replacement diode so I need to get the old one off but it's red-wire tag is Nov 7, 2024 · Could just need a good cleaning and a new fuel filter. If you look on page 15 of the Moss MGB parts catalog, you will see the vapor line in question (items 83 through 86) together with the rest of the emission components. In the past I had the occasional overflow from the float chambers, but recently it became persistent. 64 MGB with '69 internals. I did leak very slightly so I decided to replace the stiff diaphram and points with new parts. Apr 25, 2020 · Now that my MGB is on the road (first time in 5-7 years) some stuff is starting to fail. I set the points as per the manuel and unscrewed the diaphram until it just flipped over Jun 3, 2013 · So it only leaks copiously when the car/fuel pump is running? this implies that you have a leak downstream of the pump. at The MG Experience Mar 30, 2010 · Turn on the ignition and watch the stream of fuel into the glass jar. The other (currently on car) has a slight raised edge where the fittings attach. I'm assuming your fuel pump is rated correctly at about 2. When pump was on fuel was spraying out of the sides of the Air Bottle Cover whi Sep 7, 2014 · Would a fuel pump intake side leak allow the pump to move enough fuel to keep the engine running, but not be able to generate the line pressure required to shut off the pump? Order your MGB Fuel Pump ⛽ Low prices and fast, worldwide delivery British car experts ♚ Call ☎ 01522 568000 or ☎ 1-855-746-2767 Apr 23, 2011 · It will only pump continuously if it is pumping fuel properly or it will pump very fast if there is an air leak on the inlet side of the pump. Jun 6, 2020 · Put all back together and leak sorted. Removed the drain plug and got another cupful or so - then a final cup full of <very> rusty fuel poured out when the tank was finally out of the car. I'm pretty sure it is leaking out of the body of the pump, not from any of the hose fittings. I did glance at a fuel Jun 1, 2025 · Well, after a hectic session of dealing with the leaking gas, and subsequent draining of the fuel tank (Read about that fiasco HERE ), I took the suspect fuel pump hose and dissected it to see what's what. The Live is active now. The problem is the pump pictured leaks badly at the banjo fittings, even with new sealing washers Jul 7, 2015 · If the outside of the fuel lines look that cracked and worn, the insides might be as bad. I fixed my SU fuel pump, got it on the car, turn the iginition ithe pump is ticking over nicely, but then as soon as the fuel reaches the pump it starts leaking from the inlet and outlet screws. The nicer of the 2 has flat surfaces where the banjo fittings attach (see photo). With David DuBois and my local mechanics help we solved my fuel leak problem. George, in spite of taking over his father's business, Lilly & Skinner footwear distributors, had a better idea for a carburetor in the early automotive days. As you all probably know, SU stands for Skinners Union and was the brainchild of George and Carl Skinner. If this was the problem, it is time to think about getting the gas tank cleaned out or you will be facing the same problem later on. The petrol on the side of the tank could be from being blown backwards. Feb 6, 2014 · Library Article: Troubleshooting guide for all classic cars and trucks that use SU mechanical (points type) fuel pumps. Aug 1, 2010 · hi first post-though i have 2 de-bubber rumpered gt's- just failed the MOT with a leaking fuel pump-its an su azx 1307-leaking from the join on the body where the diaphragm is-just taken it apart and the diaphragm is in one piece and looks in ok shape so im assuming that its not the cause-the screw Recommendations Parts MG parts spares and accessories are available for MG T Series (TA, MG TB, MG TC, MG TD, MG TF), Magnette, MGA, Twin cam, MGB, MGBGT, MGC, MGC GT, MG Midget, Sprite and other MG models from British car spares company LBCarCo. Mar 2, 2019 · Couple of things that made me suspect an air leakage The fuel filter was usually full of air (or vapour) A couple of occasions when accelerating hard the engine would lose power. Before you strip carb down,remove fuel pump fuse and run engine till it runs out of fuel,refit fuse ,run pump, the force of the fuel may clear any tiny piece of dirt trapped in the needle,Used this trick many times at the side of the road attending broken down cars. I think the SU is electronic not points, but I could be wrong. Air_Filters Cable_and_Pipe_Routing Choke_Control Crankcase_Breathing Cruise_Control Emissions_Limits_ (UK) Ethanol Delivery_Check Fault_Diagnosis Fuel_Filter Fuel_Gauge Fuel_Hose Fuel_Pumps North_American_Emissions_Plumbing Octane_Ratings Pump_Fusing Running-on Stromberg_Carbs SU_Carbs SU_Needles Tank Tank_Sender Throttle_Cable_and_Pedal Unleaded Vaporisation! V8_Inlet_Manifold Vacuum_Gauge Oct 11, 2011 · I have a 1964 MGB that had a original SU fuel pump that worked fine for years after I cleaned up the points. It turns out that rust was plugging this union leaking fuel pump, what kind of pump is this and seeking advice to fix. In addition to building the well known and much loved SU Sep 23, 2006 · Have electronic version of new SU pump which I have had about 2 years. 5 psi. Here’s where this technical article may save you some time and work if your MGB has the same problem. If it is full of bubbles, you have an air leak in the pump - either a bad gasket under the large domed cover held in place by a single hex head screw or the diaphragm is leaking. Is this air leaking in?The engine is running ok,If air was leaking in wouldnt that have some influence to my driving? 1979 GT - went over a ramp (roadworks) bit too fast. Jun 26, 2008 · 1979 MGB - SU fuel pump model AZX1307 The fuel pump stopped running and was leaking around the diaphragm so I decided to go for a minor rebuild - gaskets & points - using a kit from Victoria British. Mar 11, 2008 · When turning the key to start the engine the fuel pump starts ticking and dont stop. Dec 30, 2010 · I have 2 SU fuel pumps. It is an SU pump - the PO told me that it is an upgraded pump to feed more fuel to the Weber DCOE carb. I have a backup fuel pump as well as the SU unit. I sometimes hear the ticking when driving. The gasket at the top of the float bowl is fine for most uses, but it won't keep up with a float bowl needle wedged open from a piece of fuel line debris. If you have a MGA or MGB, disconnect the fuel line from the fitting on the tank and again turn on the key. Check starting with rubber hose, pump to metal fuel line . Now I didnt take enough notic Dec 27, 2023 · Thanks Stephen Got 3/4 of the fuel out using a jiggle syphon and then used the fuel pump to get the remaining quarter. MG MGB Technical - Leak from fuel pump This thread was discussed between 27/07/2005 and 04/08/2005 Feb 22, 2009 · Hello, Firstly I apologise for this pretty basic question. Is there a weep hole in the fuel pump that would cause this, or is this a sign of a bigger problem and time to replace th May 27, 2014 · My MGB (1971) 1800 is suffering (or rather I am suffering) a persistent fuel leak. When the backup unit is powered and gas is Jun 1, 2020 · Checking Fuel Pump Flow I recently suspected that the fuel pump was not working correctly as there was high speed clicking - guess about 10/sec even after a decent run and at least half a tank of fuel. Fuel pump was leaking badly on a short trip downtown. Don't have time tonight to jack up the car but any pointers would be welcome before I call in the cavalry. The air leak can be in the inlet side of the pump (but if it pumps correctly, without a lot of bubbles in in the fuel stream, this is not the problem), in the line from the tank to the pump or in the . jbjcuj ttgcq xcbolm exsq qzfbx yizgz wln lrygj keswhkawu hrb