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Not pumping fuel...
Thanks for reading! Its an 84 Volvo 240 Wagon, D24 6 cyl diesel, auto transmission, 150k original miles. It was running great and started up everytime. Smoked a bunch immediately after start up, but would clear up 3 seconds later.
Recently started and moved it to the garage. Replaced the downpipe and nothing else. Sat idle for 10 days. Now it won't start. Primed from fuel tank to fuel filter. Have been doing air bleeds procedure at all injectors (multiple times) and return line connection. I get BARELY any signs of fuel at the injectors. Removed the intake line at the fuel filter, dipped the intake into a cup of fuel, and had a friend turn over the engine. Not sucking any fuel whatsoever. Belt, tension and operation look good. There's a solenoid with a single wire on the driver side of the injection pump. It does get full voltage and click with the key in the "on" position. I assume this is the fuel shutoff ? There's another solenoid on the passenger side, and towards the top of the injection pump. Its getting battery voltage, but doesn't click etc. What is that thing? My E30 is sold and being picked up in a day or two. I really need to get this guy running reliable. I have a couple more silly questions... Is there an electric fuel pump on the tank or underbody? Is there a fuel pump relay? |
#2
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What kind of fuel is in it? When bleeding air from the injector hard lines, fuel should come out in nice solid spurts. If it is just foaming and dribbling then you've got a problem. But you already know that.
You are correct that the solenoid on the top is the fuel cutoff. Those almost never fail, very unlikely it is your problem. It should get 12v with the key on. The solenoid on the passenger side of the injector pump is the altitude compensation device. It should be energized when the key is on. Above 3300 feet, a switch opens and current does not get to the solenoid, which causes fueling to be pulled back and advances the timing. You don't want that to happen so keep power to it as you have now. It should click when you turn power to it on and off (unplug spade terminal), so if there is no click then the device is faulty but it will not keep the car from running so don't worry too much about it right now. There are no electric pumps anywhere, in the tank or under the floor on a diesel Volvo unless someone has added one. Thus no relays, etc either. My next step would be to get some biodiesel (swells up internal seals in the pump, which can cause it to not function if leaking due to ULSD as many of them now are), then gravity-feed it into the pump inlet. If you have access to a method of force-feeding it (like temporarily install an electric lift pump) to prime the pump, then that may work even better. Once the pump is full of biodiesel, it will begin to work. The engine may be ready to start right away, or it may need to sit for an hour with the biodiesel in it before it regains function. The worst case I have seen was on a TDI that needed to sit for about 12 hours after having its pump filled with gravity-fed B99 and cranked and bled, but after we let it sit overnight it fired right up the next morning.
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86 745 D24T/ZF 345k lifted 2.5" 83 764 D24T/M46 155k |
#3
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I would check the cut off valve for operation. I have seen the plunger missing chunks and being stuck down in the bore. The '83 I just helped get running had that very problem. I would do as George suggested and try and fill the pump with a elec pump or take off the fuel return banjo and fill it from there with a small funnel.
Jason
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Back again with a '84 760 GLE D24T/ZF SOLD but not forgotten! 1984 760 Sedan, built D24Tic/ T-5 swapped My engine build: http://www.d24t.com/showthread.php?t...t=engine+build T-5 swap: http://d24t.com/showthread.php?399-W...to-quot-w-pics! |
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Thanks, I will do as suggested and report back. I'm wondering, is the injection pump rebuildable?
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Yes it is.
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Does anybody sell a rebuild kit?
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#7
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Quote:
Does this car have a mechanical fuel pump? Where is it? My car is having an issue of no fuel to the fuel filter, let alone to the injector pump... I'm coming up empty everywhere I look???? THANKS in advance... -Tim
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2000 Dodge Ram 5.9l Cummins, 5spd, Dually 4wd 1983 Volvo 244 gl, D24, 3spd auto, sedan |
#8
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Diesel pump itself is the mechanical pump.
It drains fuel from tank, and really leaky pump (many seals "gone") could cause situation where it wouldnt drain any. But i believe your fuel lines are blocked by some materia in lines, which shouldnt be there. |
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