Vehicle & Technical > Discovery

Er, starting trouble...

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Disco Inferno:
even in the coldest weather a di diesel engine should start without heater plugs, it run a bit rough tilll it gets going.
I'd be looking at a fueling problem
lift pump possibly or a lkeaky fuel line, letting air int he pipe, hence after a while of cranking it eventually starts
check the unions on top of the tank under the boot floor, also around the sedimenter.
after that check the lift pump
also, might be worth pulling the stop solenoid out, make sur eits not sticking, the springs have a habbit of breaking, but this usually results in the car not turning off

Ralph:
As said a di engine should start without heat in any weather no matter how cold.
Get someone to stand behind vehicle while you try to start it and see if there is any smoke coming from exhaust.

If there is no smoke of any description while the engine is cranking then there is no diesel getting into the combustion process.

If it cranks for a while and then some smoke while still cranking this points to possible leak in fuel line allowing air in or fuel to run back from pump.

If it smokes as soon as cranking starts then diesel is getting through but not igniting, the main problem here is poor compression.

I have kept this explantion as simple as i can , try it when you next start it and pm me with results and i will try to solve your problem!!

Pete:
Sounds like air getting in somwhere. I would take a look at the sedimenter near the rear axle, they rot.
 Pete.

Steven:
a few questions to answer...

we are not running it on verg oil

yes we let the plugs heat up first

yes theres a bit of black smoke which comes out when cranking

 :?  :?  :?

datalas:
once you've got it running, (even for only a few moments) kill it and try starting it again.

if it fires up fairly quickly then I'd hazard a guess at either poo fuel, or probably the lift pump.

easist way of testing the lift pump is to unscrew the breather at the top of the filter and try priming the system.  Since nine times out of ten the manual pump dies before the other bit you should notice little or no resistance or pumping ...

from then on it's a couple of "not pleasant to get at" bolts to do ..  the lift pump itself is quite cheap too..

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