200Tdi pump problem

wattfield · Nov 1, 2015

I put in my new (2nd hand) injector pump today, and all was well until I started it up. It's idling at very high revs, full throttle in fact, and belching out enough smoke to elect the next Pope. Could this just be a timing issue or do I have bigger problems?

lynall · Nov 1, 2015

Wont be timing.
Any corrosion under the diaphragm?

jamesmartin · Nov 1, 2015

what colour smoke

wattfield · Nov 1, 2015

jamesmartin said:
what colour smoke

Whiteish. Fuel not being burnt?

jamesmartin · Nov 1, 2015

could be timing does it run well apart from smoke,have you removed injectors

wattfield · Nov 1, 2015

jamesmartin said:
could be timing does it run well apart from smoke,have you removed injectors

Apart from the smoke, it's revving as if on full throttle, so I haven't let it run for long. I haven't removed the injectors.

jamesmartin · Nov 1, 2015

wattfield said:
Apart from the smoke, it's revving as if on full throttle, so I haven't let it run for long. I haven't removed the injectors.

that doesnt sound like timing , more pump been stood to long

wattfield · Nov 1, 2015

jamesmartin said:
that doesnt sound like timing , more pump been stood to long

Is there anything I can do about it?

jamesmartin · Nov 1, 2015

wattfield said:
Is there anything I can do about it?

you could check what lynall posted apart from that it would need stripping or returning

wattfield · Nov 1, 2015

jamesmartin said:
you could check what lynall posted apart from that it would need stripping or returning

OK cheers, I'll have a look next weekend (too dark to work by the time I get home now).
@lynall cheers to you too!

lynall · Nov 2, 2015

Also worth checking fuel screw on the back of the pump, if seal missing could be wound in to far, this can raise the idle rpms, not sure if if will cause it to run flat out but certainly worth a look.
Its the screw with the 13mm spanner locknut and the 6mm spanner size head.
The two 10mm spanner sized ones each side are idle and max adjustments.
Might be worth posting up a pic as you may have bent something fitting the pump and someone may be able to see whats wrong.

wattfield · Jan 3, 2016

Back to this!
I've had my old pump refurbished, and sorted out the battery problem.
Now it takes a good few seconds to start and belches out white smoke, and isn't firing well on all cylinders. If I drive it for a mile or so the smoke clears and it runs perfectly. I though it would be a one off to clear unburnt fuel from the exhaust, but I've driven it 3 times now and it does the same every time.

jamesmartin · Jan 3, 2016

does it start quickly or take a little winding over

wattfield · Jan 3, 2016

Takes a little winding over. The starter spins normally, plenty of battery power. It takes about 5 -10 seconds to start.

Flossie · Jan 3, 2016

Injector (s) dripping is a good possibility, get them tested.

jamesmartin · Jan 3, 2016

injectors are indeed a possibility, though presuming this is a new development coinciding with pump repair ,what did they do to pump

wattfield · Jan 3, 2016

I'm going to put some injector cleaner in anyway and see how that goes, and give it a decent long run tomorrow.

wattfield · Jan 3, 2016

jamesmartin said:
injectors are indeed a possibility, though presuming this is a new development coinciding with pump repair ,what did they do to pump

Fully refurbished by Diesel Bob. There was swarf in the old pump, very little but I'm hoping not enough to do any damage to the injectors. Funds are dwindling and I need a new rear door!

jamesmartin · Jan 3, 2016

can you not borrow a set to try ,swarf may well had an effect

flat · Jan 3, 2016

is the pump timing correct? Would that affect it like that?

200Tdi pump problem

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