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Thread: Series 80 LandCruiser power

  1. #1
    SiB
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    Series 80 LandCruiser power

    Got a Ď96 VX cruiser with a 4.2 turbo diesel. 300k on clock (Iíve done the last 250k)

    On the flat Iím fine, but as soon as we hit the hills or attempt an over taking manoeuvre, thereís just no power. Itíll kick down in gear but goes no faster....

    A mechanic friend has suggested itís my diesel pump, and to have this worked on is $2.5k for the outwork plus the remove/re-install labour

    Anybody been through similar?

    Any advice?

  2. #2
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    Not the turbo.... My old girl is a slug on the hills always has been but it's the result of no turbo, bosses goes like a cut ca in comparison having been opened up, new exhaust... Etc
    WallyR likes this.

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    By Popular Demand gimp's Avatar
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    By Popular Demand gimp's Avatar
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  5. #5
    Member Timmay's Avatar
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    I know on the older patrols there was a gause filter that could fill with junk on the inlet side of the pump which would give a similar result as what your are experiencing.
    Any boost leaks?

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    check your exhaust does it have a catylic converter if they are blocked you will have no power .see if there is a lot of heat from them compared to the rest of the exhaust system after them .in some vehicles you can feel the extra heat through the floor above the exhaust . the other thing to look at is there any vacuum system hoses that are perished or fallen off old boss had problem with his lexus cruiser ( diesel ) crack in vacuum hose wouldn't let it put out max fuel so no grunt when towing ok on the flat just travelling.

  7. #7
    Almost literate. veitnamcam's Avatar
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    Some of them did have a fault with the injection pump but that usually resulted in stuck on side of road damage.
    First up put a boost guage on it....no boost no power then look from there. Could be a stuck waste gate or blown diaphame in the boost compensator or a boost leak between the two or a sevearly blocked fuel filter.

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    xtightg likes this.
    "Hunting and fishing" fucking over licenced firearms owners since ages ago.

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    3in exhaust, 18psi and a tuned injection pump should liven it up abit


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    Dont waste your time chasing every last fps, it doesnt matter in the real world, it wont make a difference, all it will do is cause head aches and frustrations. And dont listen to silly old cunts

  9. #9
    SiB
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    Thanks guys. Will make notes of above and convey to my mechanic

  10. #10
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    I've got a BJ73 that I had the fuel pump rebuilt and bill came to $3400 in the end. I think it may have been on the more expensive end of it though, they had to replace the body of the pump as well so it's pretty much a new pump. Looked at as it was lacking power, ended up trying to adjust the fuel screw as I thought it had come loose. Adjusting the screw didn't do much and not long after that the revs started hanging and took it in and got the pump done, injectors were buggered too.
    Every day is leg day.

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    All good advice but always start at the cheapest and easiest first. Don't forget the air element as I've seen them in trucks look good but suck them selves flat and restrict air under load to give the same problem yours had. Even saw one that had a new turbo, inter cooler cleaned, new turbo pipes with no luck. turned out to be just a new air element needed! Which leads me back to what I said at the beginning. Cheapest first , air, fuel, boost, hoses, pump timing etc before pumps, turbos and the other expensive stuff. Even a motor running to cold from a dodgy thermostat will lose power more than people realise
    veitnamcam, kokako and Cyclops like this.

  12. #12
    SiB
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    Thanks guys. Will def check out all options there

  13. #13
    Member dale's Avatar
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    @ SiB I have had one that also lacked power on hills etc didn’t put up any lights or use more gas. Garage couldn’t find any problems but wasn’t till I looked around and found the intake pipe had worked lose under load but at idle was fine but under boost would blow air out.

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    Had something very similar on my Nissan. Remedy was just a new Fuel filter.

  15. #15
    SiB
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    Iím going to check it over myself this weekend

 

 

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