Grumps wrote:
The Natural Philosopher wrote:
Grumps wrote:
squelchy wrote:
Paul Herber wrote:
On Thu, 24 Aug 2006 13:11:21 +0100, "Christian McArdle"
wrote:
The pump is an extremely sensitive precision instrument that
gets the fuel up to about 1800 bar.
ITYM 1800 PSI, or abour 120 bar.
Nope. 1800 bar, or about 27,000 PSI. Very dangerous stuff. A leak
can squirt out with such force that it can slice right into the
human body.
Different designs use different pressures. They're pretty much all
above 1000 bar, and some new designs are now edging 2000 bar.
Well, well, well, I wouldn't have beliived it but I;ve now found
such on google. Had a suitable question been on WWTBAM I would
have got the answer wrong.
--
Regards, Paul Herber, Sandrila Ltd. http://www.pherber.com/
Electronics for Visio http://www.electronics.sandrila.co.uk/
Hi
I dont know if anyone has mentioned this before but if it is a
deasil the glow plugs need to suck quite allot of batery power for
them to heat up before the fuel will light and start the engin if
your battery is not in its best condition tha is the first place I
would look if you notice the baterys on deasils are always heavy
duty for this reason compared to a pertrol engineed car hense why
they tend to cost more to replace (just the joys of a deasil) try
to get the batery charged over night or see if you friendly garage
will test out the problem with a new battery if you have a friendly
local machanic they will do this for free as if you need a new
battery they would hopwe for the sale.
I hope this helps
Thanks for the reply.
Problem is, the car starts normally 99% of the time. Only
occasionally will it take longer.
I put the battery on charge last night for about 12 hours. It was
still not fully charged by morning. Even so, I'm not sure it is the
battery. How does one test the battery? (the engine does turn over easily
for
sustained periods)
Yeah. Ive had three batteries gpo on me this year.
The symptoms are that they take forever to charge, won't start the car
properly even when they are charged, and all sorts of ancillary
equipment goes haywire..if te battery is 5 years old I'd simply
replace it before looking any deeper. As I said my wife's Freelander
diesel with a BMW engine would barely start even when jumped..new
batery and it now springs to life. They don;t regulate te voltage to
teh glow plugs..and I suppose thats what it was.
Well, perhaps it is only the battery. Nothing lasts forever.
It just seems funny that the engine cranks without any effort.
The point is that the battery should be something you can fit for 50
quid yourself, and if it fixes it, well and good. If not when you DO
take it into BMW, at lest thats something they won;t be able to charge
you 200 quid to fit ...the wifes car also turned over.a bit lazily..but
wouldn't start..when we jumped it, it turned over and DID start, but it
was a few seconds spluttering before it finally fired on all cylinders,
Now with a new battery, it starts every time..perfectly.
The other things you should ALWAYS do are check the fuel filter and the
presence of water in the diesel tank. Some vehicles have a warning
light for that..rough running and a white smoky output are symptoms.
Again these are cheap things to do, and once done eliminate another few
potential culprits.
Diesels by and large HAVE to be made to such tight tolerances to work at
all, that the wear rates are extremely low. 200K miles without any major
parts replacement and not even a valve regrind is the norm for a diesel
ENGINE.
After that, its probably new bearings, injectors, fuel pump and valve
regrind time.
I had a guy with an old diesel tractor working here for a while. His
method was to remove a bit of air intake, tip a cupful of diesel into
the air intake, and if the glo plug failed to set it alight, use a bit
of lit newspaper. Then cranking that lot over sucked raw flames into
the cylinders, and it usually belched and rumbled its way to life with
clouds of black smoke.
Well, I'm not quite at that stage yet.
I wouldn't treat an engine that way myself tho...
Needs must, as they say.
Mmm. That one also ended up with water in the tank...drained it, fitted
new fuel filter (I dinnt know you ad ter do that mate) and fuel, bled
the bloody thing (no fun at all) poured a half pint into the intakes,
lit it and it was running well when he took it back to warwickshire..