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dioliahary



Member Since: 18 Jan 2015
Location: Manchester
Posts: 516

Scotland 
200tdi Disco 1 suddenly stopped

Ran about a mile this morning then just cut out all electriics good, 12v to pump, diesel at injectors but more like a weep than a squirt when nut cracked. So I think a fuel problem. Recently renewed timing belt but has done aroun 100 miles since renewal.

The mechanical pump does not seem to have much resistance when operating, if this was faulty could it cause low fuel pressure? 1990 200tdi conversion 90

Post #746065 16th Dec 2018 9:27pm
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Retroanaconda



Member Since: 04 Jan 2012
Location: Scotland
Posts: 1526

Scotland 

Remove the oil filler cap then crank the engine and watch to see if the rocker arms move just to rule out the belt what with that being the last thing you changed.

Post #746069 16th Dec 2018 9:38pm
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mrd1990



Member Since: 16 Aug 2012
Location: Wales
Posts: 537

Wales 2000 Defender 110 Td5 CSW Epsom Green

You might find answers from watching this:

Post #746212 17th Dec 2018 10:14pm
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 3609

2006 Defender 110 Td5 USW Zermatt Silver

Stop solenoid?

Weak pump?

Post #746232 18th Dec 2018 12:01am
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dioliahary



Member Since: 18 Jan 2015
Location: Manchester
Posts: 516

Scotland 

I have taken the stop solenoid plunger out, cracked pipe at fuel filter outlet and got fuel flow when cranking the engine, rockers are operating so no timing belt failure therefore none of these are faulty. I am gettig fuel at the injector inlet pipe but not sure how it should flow, so I have disconnected the metal injector pipe at the injector, cranked the engine and I get a squirt of fuel from the pipe just not sure if it should be more aggresive therefore lack of pressure. 1990 200tdi conversion 90

Post #746238 18th Dec 2018 12:17am
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donmacn



Member Since: 07 Nov 2017
Location: Nth Scotland
Posts: 685

Maybe not 100% what you're after, but I happened to watch this video last night, and there's a bit where he fits a new lift pump, and has diesel spraying out of the filter bleed screw. This might give you an idea of the sort of flow that's normal/needed.

https://m.youtube.com/watch?v=

Maybe not so much use if the engine isn't running though.... Donald

1994 Defender 300Tdi 110 SW - owned since 2002 - 220k miles and going strong

The 'rolling restoration' or tinkering thread: http://www.defender2.net/forum/topic58538.html

in the past..
RR classic - fitted with 200Tdi
1984 RR classic - V8 with ZF auto box
1993 Discovery 300Tdi

not to mention the minis and the Type 2 VW camper...

Post #746275 18th Dec 2018 10:38am
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bigfatsi



Member Since: 07 Sep 2018
Location: Teesside
Posts: 36

United Kingdom 2003 Defender 110 Td5 CSW Aintree Green

Ah I remember having those days.

9/10 it's the lift pump. I have had leaking fuel pipe joints and even a holed pick up pipe before though. And a dodgy fuel filter connection.

Can you try the old fuel can on the roof trick for diagnostic? Or a clear pipe in line to check for air?

S

Post #746284 18th Dec 2018 12:38pm
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dioliahary



Member Since: 18 Jan 2015
Location: Manchester
Posts: 516

Scotland 

Injectors don’t look too clever?

Click image to enlarge




Click image to enlarge



Click image to enlarge



Click image to enlarge
 1990 200tdi conversion 90

Post #746356 18th Dec 2018 10:32pm
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Justtellme



Member Since: 23 Nov 2015
Location: Ottawa
Posts: 247

Canada 2003 Defender 110 Td5 SW Oslo Blue

What the heck happened to those injectors?

Post #746374 19th Dec 2018 2:59am
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dioliahary



Member Since: 18 Jan 2015
Location: Manchester
Posts: 516

Scotland 

Getting them tested today, not sure why they are like this though 1990 200tdi conversion 90

Post #746407 19th Dec 2018 12:49pm
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dioliahary



Member Since: 18 Jan 2015
Location: Manchester
Posts: 516

Scotland 

Hmmm injectors tested like new, running out of ideas now, guess check timing next but do not understand how the timing belt could slip if that’s the problem. 1990 200tdi conversion 90

Post #746434 19th Dec 2018 4:30pm
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Bps



Member Since: 14 Feb 2016
Location: Lancashire
Posts: 487

United Kingdom 

change fuel filter and swop lift pump

Post #746449 19th Dec 2018 5:56pm
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dioliahary



Member Since: 18 Jan 2015
Location: Manchester
Posts: 516

Scotland 

I changed the fuel filter and I inspected the old one, it was in excellent condition. I am about to check timing, removing crankcase case.

But before I do can anyone tell me if a faulty or inefficient lift pump would cause this situation? 1990 200tdi conversion 90

Post #746458 19th Dec 2018 6:34pm
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donmacn



Member Since: 07 Nov 2017
Location: Nth Scotland
Posts: 685

I'm afraid I can't be definitive, just because I can't remember the details.

I remember having poor running, or starting issues which were eventually traced to the lift pump. The symptoms weren't as bad as yours seems to be, but perhaps it was summer and the fuel was thinner/lighter?

I think the 'main' pump will draw fuel through, even if the lift pump isn't working but everything else would need to be in good order.

Sorry - not much help. On the plus side, it's not an expensive part.... Donald

1994 Defender 300Tdi 110 SW - owned since 2002 - 220k miles and going strong

The 'rolling restoration' or tinkering thread: http://www.defender2.net/forum/topic58538.html

in the past..
RR classic - fitted with 200Tdi
1984 RR classic - V8 with ZF auto box
1993 Discovery 300Tdi

not to mention the minis and the Type 2 VW camper...

Post #746494 19th Dec 2018 8:43pm
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Mo Murphy



Member Since: 01 Jun 2008
Location: Letchworth Garden City, Herts
Posts: 1015

United Kingdom 1984 Defender 90 200 Tdi HT Orkney Grey

The engine will pull well enough without the lift pump as the injection pump will pull fuel through. If knackered though, you will notice the difference when you replace it.
HTH
Mo The Land Rover 90 - Many are called, few are chosen.

Post #746516 19th Dec 2018 10:36pm
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