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Leaking injector pump

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drmike:
Looks like my injector pump on the 200 TDI is leaking but I can't work out where it's coming from.

The four output unions for the injector pipes are dry as is the input pipe and the return from the injectors.

I would say it was leaking where the top and bottom parts join and seem to be held in place with allen bolts but there is diesel higher up that that joint although that might be capilliary action.

Are there any likeley suspects for a leak?

About 6 weeks ago I did take out the big allen bolt that sits behind the throttle spring - but that surely doesn't have any fuel behind it - or does it?

Could the case have fractured do you think?

I assume a leak like this would be an MOT fail which I had booked for Friday.

Grr - as always any help will be appreciated!

Mike

hobbit:
Not necessarily fracture but may be a seal or gasket leak, need to wipe it down and have a good look when running it up

drmike:
Thinking it over I think I agree that it will be a seal or gasket. Is it possible/easy to replace such things or is it a specialist job?

I'm game for anything as I just want to get it running OK and ideally by Friday when it goes for an MOT! I can't afford a replacement pump right now either.

Mike

hobbit:
Anything injector pump I dont play with myself, but some people do, its a case of what is leaking first then seeing if its a simple plate or a seal that means a more complicated operation

drmike:
It's almost certainly the throttle spindle seal. That seemed to be where it came from after a good clean up and when I took the spring etc. off you could see the diesel coming out.

Local diesel boys say 25 quid parts or 60 quid fit. So I think they'll be getting 60 quid as it looks a bit tricky to fit. I may look at the parts and see if I fancy it but for 60 quid it's probably simplest if they fdo it.

Mike

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