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Thread: county help

  1. #1
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    county help

    Hi All,
    Just after some advice on a diesel county. I seem to have finally found what seems to be a decent one, my only concern is that it seems to run out of puff early. I know all about the characteristics of the isuzu motor but I have been told it should keep accelerating up passed 100km/h however this one seems to run out about 90km/h and then slowly wind upto speeds above this. I dont mind if the only problem is changing a blocked fuel filter or getting new nozzles for the injectors but if its a fuel pump problem then it is a big dollar job for a car they are already asking top dollar for. Has anyone got any ideas of what may be causing the problem and/or how serious the problem may be. Cheers,
    Pullsy

  2. #2
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    it can be a multitude of things from a glazed bore to bad fuel and anything in between IF there is a problem at all.

    I have read heaps of people use CEM oil and fuel treatment and clear this sort of symptom up, i have just ordered some to put thru my 300tdi

    does it blow much black smoke ?

    is the cyl compression even across all the cyl's ?

    how old is the fuel ?

    did it come out of a drum or out of a bowser?

    sounds like need to get it inspected by a diesel fitter or landrover specialist that knows the 4bdi if it worries you and you are unsure yourself.
    2007 Discovery 3 SE7 TDV6 2.7
    2012 SZ Territory TX 2.7 TDCi

    "Make the lie big, make it simple, keep saying it, and eventually they will believe it." -- a warning from Adolf Hitler
    "If you don't have a sense of humour, you probably don't have any sense at all!" -- a wise observation by someone else
    'If everyone colludes in believing that war is the norm, nobody will recognize the imperative of peace." -- Anne Deveson
    “What you leave behind is not what is engraved in stone monuments, but what is woven into the lives of others.” - Pericles
    "We can ignore reality, but we cannot ignore the consequences of ignoring reality.” – Ayn Rand
    "The happiness of your life depends upon the quality of your thoughts." Marcus Aurelius

  3. #3
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    Incisor,
    The car blows a little smoke on start up like most diesels but once warm is nice and clean. I am getting a compression test. The vehicle has been sitting around for a while as the bloke has upgraded to a TD5 disco and has had this sitting around since then. I am just stuck as there is only really one Landrover specialist in town and he has asked me not to bring it to him as he already services the vehicle and doesn't want to get caught in between buyer and seller if something is wront- which he has said he doubts. I have read other places that the CEM treatment is like putting AJAX through your motor- have you heard different reports? thanks for your help- looking forward to joining the Landrover fold,
    Pullsy

  4. #4
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    A mate of mine had a County (84 Mod from memory). And was always cheesed off at how it ran out of puff around 90. Fantastic motor down low but very sad up the rev range. He used it as a prospecting vehicle, so spent most of his time going slow. Always had fantastic economy, and said he could live with the low top, end by balancing economy against this.
    Try the usual things as Incisor says. But don't be suprised if nothing is wrong.
    I would say the old owner has gone to a TD5 for the same reason.
    Cheers Tyrepower

  5. #5
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    I agree with what tyrepower said.

    i also know a 4BD1 county and only likes aroun 90 - 95 before it runs out of pull.

    Good luck, they are probably the best Land Rovers EVER made.

    Dave [img]style_emoticons/<#EMO_DIR#>/biggrin.gif[/img]

  6. #6
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    Originally posted by pullsy
    I have read other places that the CEM treatment is like putting AJAX through your motor- have you heard different reports?
    havent heard that one at all.

    will let you know when it gets here..... i will be having a good loook at it before i put it thru [img]style_emoticons/<#EMO_DIR#>/tongue.gif[/img]
    2007 Discovery 3 SE7 TDV6 2.7
    2012 SZ Territory TX 2.7 TDCi

    "Make the lie big, make it simple, keep saying it, and eventually they will believe it." -- a warning from Adolf Hitler
    "If you don't have a sense of humour, you probably don't have any sense at all!" -- a wise observation by someone else
    'If everyone colludes in believing that war is the norm, nobody will recognize the imperative of peace." -- Anne Deveson
    “What you leave behind is not what is engraved in stone monuments, but what is woven into the lives of others.” - Pericles
    "We can ignore reality, but we cannot ignore the consequences of ignoring reality.” – Ayn Rand
    "The happiness of your life depends upon the quality of your thoughts." Marcus Aurelius

  7. #7
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    I know a bloke in Perth who put a Turbo on his. Says it made a huge differance.
    Has had his for years and will not trade away from it because of the motor

  8. #8
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    Thanks for all the replies. My love of county's comes from the longevity of the motor-gearbox combination and if I wanted a fast car then it wouldn't be a 4wd that I would buy. I have also found a very tidy single owner 200tdi defender so if the county doesn't work out I may have to go with this (as they say it never rains it pours- months of nothing and then two very well cared for Landies at once!). Thanks again for the advice,
    Pullsy

  9. #9
    Hellspawn Guest
    Injector pump. Diesels have a "memory".

    In the first few thousand ks of a diesels life is the conditioning period. If in it's past was only driven gently then that's all the injector pump will allow it to do in old age.

    Also diesels HATE doing nothing, it's an engine designed to be worked hard. Nothing shortens the life of a diesel more than okay not changing the oil but also not getting up to heat.

    Most diesels just dawdle around never asked to perform and consequently cannot when asked to. However those that are worked hard and often are the ones that still go well in old age. Old tow vehicles are good examples.

    Not that much for another injector pump however you will have to retrain the pump. Method of training is pretty much the same as athletic training for us, starting off as short bursts building up the "working hard" time over those ks until you eventually leave it in working hard mode for long periods. Done right it won't smoke as much under load and will perform almost as good as a petrol.

  10. #10
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    Injector pump? 8O
    No offence hellspawn but in all the years that I've been a diesel mechanic I've never heard of injector pumps having a 'memory'.
    The 'memory' that your talking about has got to do with the inital running in of the piston rings that gives it that 'memory'. If the rings are not bedded in nice and hard within the first 100km of an engines life, they'll never truly seal correctly, that's why it's so important to run you engine hard. As after that initial spell the crosshatching on the cylinder walls loose their sandpaper properties and no longer file each individual ring to the piston bore. So if you have driven it like driving miss daisy for the first 100km then your engine will more than likley have the following symptons - oil consumption
    - lower than normal compression
    - not quite the fuel consumption that test cars produced
    - poor acceleration
    So the term "drive it like you stole it" has a place in every engines heart.
    An I can see all you pesermistic faces out there saying "but the dealer told me to go easy on it for the first 1000km" "the manual says not to exceed a certain rev range" you want to know why? Because if the manufactures have botched somthing up it's gonna cost a hell of a lot less in warrenty work if it lets go at 3500rpm than if it let go at 5500rpm :!:
    It's standard practice to run performance engines very hard for the first 100km, and I've personally done it to all the engines that I've built and all have exceeded performance of identical engines that other people own.

    As for the Isuzu, it sound as if it's starving for fuel. Try changing fuel filters on it first.

    Pullsy don't go past the Isuzu. they are pritty much bulletproof, I work on 110's with them almost every week and the only thing that I've ever had to do to them was service them!
    If it's alittle more top end that you want then send me a PM and I'll e-mail you a few tricks that I've picked up over the last couple of years whilst working on them. As I said all the Isuzu 110's that I've driven have pulled like a frustrated teenager! all the way up to around 120-130km/h( that's with a four speed too) these engines are the best LR ever put it the bays of the big D

    Happy hunting
    Cheers Larns

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