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Thread: 1G GTE possible turbo failure

  1. #1
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    Default Re: 1G GTE possible turbo failure

    Can't PM you it seems to be broken atm but if you have blown a turbo i have a set of stock gen 3 turbo's i'm willing to sell.

    It sounds like you've just blown a vacuum or intake hose off somewhere though.

  2. #2
    Junior Member Grease Monkey ripfast's Avatar
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    Default 1G GTE possible turbo failure

    Hi there

    I have a 89 auto 1G turbo soarer GT-L. First off how do i know what gen the motor is?

    second the ignition lead came loose while i was driving as i had not connected itproperly and the car was spluttering and firing intermitently till i stopped and figured out the problem.

    The car started fine and didnt seem any different however when giving it some foot flat to the floor at the lights it seemed sluggish, i also noticed that the whistle form the turbos was considerably less and the BOV seemed to be quiter as well.

    Is it possible that this short small firing problem somehow damaged the turbos (like firing when the cylinder had to much fuel in it or something like that)?

    are there any checks i can do before taking the turbos off the engine eg hook a boost gauge up?

    cheers
    1985 VK Commodore with 1JZ-GTE
    1989 GZ20 GT-T Soarer with 1G-GTE
    2008 IS250 with not enough power

  3. #3
    ---------HO00NS---------- Chief Engine Builder IN 05 NT's Avatar
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    Default Re: 1G GTE possible turbo failure

    yellow injectors mean its a gen 2, limegreen colour will mean gen 3,
    being an 89, i would assume is a gen 3

    easiest way to tell if its making boost would be to hook up a boost gauge (there only $30 from repco for a cheapie that will do teh job)

    check all the hoses, usuall stuff, if a hose is leaking i would run like a dog as it runs a AFM,

    check all wasgtate vacuum lines are on,

  4. #4
    Junior Member Conversion King timbosaurus's Avatar
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    Default Re: 1G GTE possible turbo failure

    Let's get this outta the way first...

    Quote Originally Posted by ripfast
    when giving it some foot flat to the floor at the lights it seemed sluggish,
    Are you sure someone didn't swap it with an 18RG when you weren't looking??? Whew, that felt good

    On a more serious note, chances are that car would be a gen3 1G as Blake suggested. I think that is the same model of halfcut as mine, which is most certainly a gen3. Check the injectors, but yellow and green are pretty close so make sure you buff the injectors a bit to bring out their true colour.

    I wouldn't imagine a quick stint of no-spark in a cylinder should harm an engine, but how long has it been like that and what state the engine is in? Obviously running a well-boosted engine for 6 months on 5 cyls is never going to be GOOD for it!

    Possibly the vibrations of running on 5 cyls have worked loose a clamp/cracked a pipe?

    Again, as Blake said, look at how well the engine is coming on boost. If you don't have a boost guage (what self-respecting dorito-sensai doesn't these days though... ) then here's a good one I prepared earlier

    http://toymods.net/forums/showthread.php?t=32088

    Cheers,
    Timbo
    Current rides...
    2) White RA25ST
    1) Red RA28LT (NOW WITH 1G )

  5. #5
    Junior Member Grease Monkey ripfast's Avatar
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    Default Re: 1G GTE possible turbo failure

    yeah its definately a gen 3, its comin on boost slowly but it does get to .6 bar but only at higher revs it takes time for it to build to .6

    .6 is about 8.7 psi

    should it be at .6 when flat pretty much as soon as it comes on boost?

    also tried resetting the computer but no difference
    1985 VK Commodore with 1JZ-GTE
    1989 GZ20 GT-T Soarer with 1G-GTE
    2008 IS250 with not enough power

  6. #6
    Junior Member 1st year Apprentice
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    Default Re: 1G GTE possible turbo failure

    my gen3 was te same when i first got it ... your turbos are not going to come on the second you hit the gas tho no matter what they take a couple seconds to get going i got a boost controllerand when i was fitting it i found the actuator line on one of my turds was split .... replaced it with the controller now boost is faster take offs are "ok" lol and im running 14psi with no problems and a bit of tickled timing ..trust me that makes for an impressing driver .... wish i had a manual tho it would be so much perkyer but we get the hand we are delt good luck with it man hope it all works out

  7. #7
    Junior Member 1st year Apprentice
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    Default Re: 1G GTE possible turbo failure

    sounds similar to a prob I had, turned out i had cracked cooler piping. worth a look...

  8. #8
    Junior Member Grease Monkey Jesse's Avatar
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    Default Re: 1G GTE possible turbo failure

    Where in SA are you....?

    If you've checked all of the above, and still no joy, you can bring it past the shop, i can have a quick look for you if you want..

  9. #9
    Junior Member Grease Monkey ripfast's Avatar
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    Default Re: 1G GTE possible turbo failure

    havent had a chance to check the above yet. im western suburbs of adelaide round grange
    1985 VK Commodore with 1JZ-GTE
    1989 GZ20 GT-T Soarer with 1G-GTE
    2008 IS250 with not enough power

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