I am working on a 1,6 td (51 kw) diesel golf (rabbit). I managed to break one of the delivery valves and couldnt get it out. Instead i changed the distributor head and plunger as they travel in pairs. Now the problem is that two of the four delivery valves dont spray fuel when cranked. I tried to change them, but no luck, also primed the heck out of the IP . When the delivery valves where not installed then there was fuel coming out of the holes... what can be done to make these two delivery valves work again?
Welcome to the forum. Is the car new to you, or do you know how well it ran before you started working on the delivery valves? What I'm saying is that if you don't know how it ran before you started working on it, there may be issues with the internals of the injector pump (IP). Can you give us a little more background information on your history with the car?
Everybody else lists their cars here - but not me.
i have owned the car for a year. most of that time it has not been started cos i changed the turbo from k24 to k14 to get rid of the turbo lag.
when i tried to start it the IP didnt pull up any fuel so i got another pump from a 1,6 td (59kw) and swapped those. it ran whit that pump, smoked a lot when revved . One of the delivery valves was a bit leaky and snapped when was trying to torque it down. The rest is described above.
tried to change those non working valves from another pump, but no luck. The ports spurt still fuel when DV-s are not installed so there shouldnt be a problem with the internals of the pump. i would take the pump to a specialist but the nearest is about 100km from here and whitout a car its a pain in the A**to get there
Do you have the accelerator floored when you are cranking it?
It pulls fuel from the pump now?
Is the max fuel screw turned in?
'91 Golf gasser converted to a 12mm pump, M-TDI.
'84 1.6TD Rabbit with a VNT-15 turbo, still setup to run on vegetable oil.
'84 GTI with 1.7TD pistons and intercooled.
2003 TDI wagon
2000 TDI Jetta.
yes, i have the throttle and clutch pedals both slammed when cranking, the pump sucks fuel, and the max screw is turned as much in as it can be without removing the collar
Was the top of the pump taken off?
If so did they get the accelerator lever put back on right?
This isn't a common problem but I have heard of it before,.. can't recall what he cure was right now though,.. if there ever was one.
Any history on the head/plunger that got swapped on?
'91 Golf gasser converted to a 12mm pump, M-TDI.
'84 1.6TD Rabbit with a VNT-15 turbo, still setup to run on vegetable oil.
'84 GTI with 1.7TD pistons and intercooled.
2003 TDI wagon
2000 TDI Jetta.
Have you had the delivery valves apart and wrongly assembled?
As there is only one high pressure piston, it can't realistically work for some and not others so the problem lies with the d/v's.
Swap a god one with a bad one, but do not take apart the good one, until you are finding the problem travelling with the delivery valve. At this time dismantle a good one and reassemble the torpedo insides of the bad one correctly...
There is one situation where the piston nolonger pressurises at one TDC angle, and that would be for the cam lobe to have disappeared. Seen it on a head cam [not my car] but that's about it
"I'm not here to help... I'm here to Pro-Volke"
Be like meeee...Drive a Quantum TD
...The best work-horse after the cart...
Quantae grow on you...but Rabbits are like roses...
... girls like em ;o)
Only one Darwin, Einstein, Poe and Verne.
That is why if you listen, you will learn:
From the one and only Quantum-man,
Who sees the worms from outside of the can.
7 Quantae in 20 years; 4 dead and 3 TD's still alive [2 wagons & 1 fastback] oh and a GTD )
mtran wrote:The Mark is said that you MUSTN`T exchange delivery valves parts,work on 1 only-that`s theory and most practise.
Agreed.
Just take apart a good one to see how a good one is assembled, after you have proved there are bad ones. If you have two , then prehaps inners are either back to front, or swapped... or just bad
"I'm not here to help... I'm here to Pro-Volke"
Be like meeee...Drive a Quantum TD
...The best work-horse after the cart...
Quantae grow on you...but Rabbits are like roses...
... girls like em ;o)
Only one Darwin, Einstein, Poe and Verne.
That is why if you listen, you will learn:
From the one and only Quantum-man,
Who sees the worms from outside of the can.
7 Quantae in 20 years; 4 dead and 3 TD's still alive [2 wagons & 1 fastback] oh and a GTD )
managed to work with the pump a little. switched the working and not working DV-s and the result was that none of the valves worked... tried to switch back, but still no improvement... so now the pump is not spraying any fuel out of the DV-s. the dv-s are correctly put together... are there special techniques to install those valves or may i be missing something important in here? could there be something wrong inside of the pump besides the camplate?
managed to work with the pump a little. switched the working and not working DV-s and the result was that none of the valves worked... tried to switch back, but still no improvement... so now the pump is not spraying any fuel out of the DV-s. the dv-s are correctly put together... are there special techniques to install those valves or may i be missing something important in here? could there be something wrong inside of the pump besides the camplate?
Cheers
Ingmar
Number one suspect is your fuel solenoid not opening. Check for power and operation. Remove insides if neccessary. Pump will still lift and push fuel out of the out banjo even when switched off...
"I'm not here to help... I'm here to Pro-Volke"
Be like meeee...Drive a Quantum TD
...The best work-horse after the cart...
Quantae grow on you...but Rabbits are like roses...
... girls like em ;o)
Only one Darwin, Einstein, Poe and Verne.
That is why if you listen, you will learn:
From the one and only Quantum-man,
Who sees the worms from outside of the can.
7 Quantae in 20 years; 4 dead and 3 TD's still alive [2 wagons & 1 fastback] oh and a GTD )
Yeah i usually use homebrew biodiesel but since i have changed the head i have used ordinary diesel from gas station. <So the pump is filled with good quality diesel.
)
