Starting Issues Lucas pump???

BX Tech talk
classicnut5
Confirmed BX'er
Posts: 48
Joined: Wed Jul 23, 2008 6:20 pm

Starting Issues Lucas pump???

Post by classicnut5 » Wed Jun 11, 2014 1:39 pm

I Have just had a used Lucas diesel fuel pump fitted, which at least is leak free. I also had a new timing belt fitted. My problem is that my 1900 diesel is now a pig to start from cold. It takes 4 or 5 turns to start and will cut out if not revved until it is warm. Once warm its fine and ticks over ok, though I would say the engine sounds like its `hunting` (I think that's the correct term, it drops and picks up revs ever so slightly) Any ideas if the pump can be adjusted or is it a glo plug issue? [-o<

Mothman

Re: Starting Issues Lucas pump???

Post by Mothman » Wed Jun 11, 2014 5:16 pm

If its hunting it sounds like there is air getting into the fuel system. Check that you have no splits in any pipes, leakoff ones included.

Andy

Defender110
Over 2k
Posts: 5899
Joined: Wed Dec 16, 2009 8:02 pm
Location: Harwood, Bolton
My Cars: Citroen BX MK1 Break.
Land Rover Discovery Series 1 200tdi 3 door
Land Rover Discovery Series 2 Facelift TD5
BMW X1
x 25

Re: Starting Issues Lucas pump???

Post by Defender110 » Wed Jun 11, 2014 5:18 pm

Probably the cold start wax stat on the pump (linked by a cable)?
Kevan
1987 Citroen BX MK1 diesel estate.(Currently in dry storage)
1997 Mercedes C230 W202 - daily driver.
2010 BMW X1 SE 2.0D Auto - Her indoors daily driver.
2003 Land Rover Discovery Series 2 Facelift TD5 - Daily driver / hobby days and camping.
1993 Land Rover Discovery 200tdi Series 1 3 door - in need of TLC

Defender110
Over 2k
Posts: 5899
Joined: Wed Dec 16, 2009 8:02 pm
Location: Harwood, Bolton
My Cars: Citroen BX MK1 Break.
Land Rover Discovery Series 1 200tdi 3 door
Land Rover Discovery Series 2 Facelift TD5
BMW X1
x 25

Re: Starting Issues Lucas pump???

Post by Defender110 » Wed Jun 11, 2014 5:21 pm

Still hunting when warm or just whilst cold starting? If when warm then air like Andy has said.

( Leak offs will just leak diesel not cause any hunting or misfiring Andy)
Kevan
1987 Citroen BX MK1 diesel estate.(Currently in dry storage)
1997 Mercedes C230 W202 - daily driver.
2010 BMW X1 SE 2.0D Auto - Her indoors daily driver.
2003 Land Rover Discovery Series 2 Facelift TD5 - Daily driver / hobby days and camping.
1993 Land Rover Discovery 200tdi Series 1 3 door - in need of TLC

classicnut5
Confirmed BX'er
Posts: 48
Joined: Wed Jul 23, 2008 6:20 pm

Re: Starting Issues Lucas pump???

Post by classicnut5 » Wed Jun 11, 2014 9:38 pm

Will check, think it's only when it's warm. Old pump leaked diesel bad but car ran perfect. Another pump fitted and now problems starting but no leaks. You can't win