starting problem BX TRD

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marrowpe
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Location: dumenza

starting problem BX TRD

Post by marrowpe » Thu Nov 16, 2017 2:02 pm

Hello
my BX TRD Break (300000 km) doesn´t start very well, worse with low temperatures. Once the motor is hot it starts normally. This morning it was bad, it started only after serveral attempts, and during the first km it turned off several times, as if there was no diesel arriving. Luckily it went down, so it came back. I changed the diesel filter and the glow plugs and added a diesel additiv. Then the car was standing for a couple of hours, and again the starting was problematic.
Thanks a lot for tips!
Peter
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Kaapelimies
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Location: Hollola, Finland
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Re: starting problem BX TRD

Post by Kaapelimies » Thu Nov 16, 2017 2:31 pm

I think it leaks air in to the system somewhere. You can confirm this by adding a piece of transparent tube between diesel filter and the pump. Check the fuel heater behind the engine, all hoses and also that the piping under the car is not corroded through and leaking (lekaing fuel ou means also leaking air in). Also the hand primer pump can be a problem. So pretty much everything from the tank to the pump :D .
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BX 4x4 estate, several BX Van's and some more normal estates in Finland.

pwykes
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Re: starting problem BX TRD

Post by pwykes » Sun Dec 10, 2017 11:45 am

Hi Chaps,

I also have this problem in cold weather, i was just wondering if anybody as tried fitting an addiltional electric fuel pump that would assist the Lucas diesel pump with a bit of fuel pressuriation before startup. In theory it could be connected to the glow plug circuit - providing fuel can pass throught it after power off.

Phil
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Defender110
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Re: starting problem BX TRD

Post by Defender110 » Mon Dec 11, 2017 11:40 am

pwykes wrote:
Sun Dec 10, 2017 11:45 am
Hi Chaps,

I also have this problem in cold weather, i was just wondering if anybody as tried fitting an addiltional electric fuel pump that would assist the Lucas diesel pump with a bit of fuel pressuriation before startup. In theory it could be connected to the glow plug circuit - providing fuel can pass throught it after power off.

Phil



Diesel fuel injection pumps send the fuel through to the injectors at very high pressure which wouldn't be boosted in the slightest by adding an electric pump in the system. If your fuel system is not faulty (i.e. not drawing air) and your glow plugs are good then there will be no problem starting an XUD diesel in the lowest of uk temperatures.
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Kevan
1987 Citroen MK1 diesel estate.
1974 MG Midget 1500 (in need of restoration)
2010 BMW X1 SE 2.0D Auto
2003 Land Rover Discovery TD5
1993 Land Rover Discovery 300tdi 3 door

pwykes
Confirmed BX'er
Posts: 36
Joined: Mon May 21, 2012 6:35 pm

Re: starting problem BX TRD

Post by pwykes » Mon Dec 11, 2017 12:36 pm

The fuel inlet transfer pump under normal working conditions as a vacuum of about 2.5hg, (The gauge also tells me when to exchange the fuel filter, the engine will stall at about 8hg due to being blocked) and yes air is being sucked in but for some reason only during cold weather. By pressurizing the inlet with a few pounds fuel oil should become visable out of any faulty joint. ive ordered an hep-02a to experiment with. Thanks for the reply.
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