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FUEL INJECTORS--How to Clean and Store 700 1989

posted by  544-4ever on  Sat Jan 18 10:30 CST 2014
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last visit: Mon Oct 20 05:50 CST 2014
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I have an '89 780, a turbo w/ bosch injection. One injector is blocked,and got another set at U-Pull cheap...same problem. Never had a problem w/ prior cars or this one. Hate to pay new $ for an injector, would like to hear of a method on you tube last yr: guy took a 2" metal piped, capped, machined to accept injector on one end, air chuck on other, sprayed carb cleaner in, capped, air up till blew thru. Not sure on that method. Read of company that uses ultrasound, mail off, 2 week turnaround, $$. The standard aerosol method to clean all, usually by a shop is expensive, w/ special hookup etc.
Aso would like to discover a liquid mixture to immerse indiv.injectors(used) in to clean or keep in clean status. Final Note: Found a comment that GREEN or light green striped injectors are only one to use on turbos. True?
Regards, Ken

Swedish Steel Rusts Slower !! 444,445,544,142,760V8,780+ hulks








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    FUEL INJECTORS--How to Clean and Store 700 1989

    posted by  jerryc on  Sun Jan 19 12:13 CST 2014
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    last visit: Wed Oct 8 21:28 CST 2014
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    One injector is 'blocked' so you replaced them all with a used set, and one of Those is 'blocked'? Not sure exactly what this means... what does 'blocked' mean?
    Is the issue at the same cylinder as before? If so, have you swapped one now in the car, with the one that isn't working, so the same injectors are in different positions?

    An 89T is Bosch lh2.2. I am not sure if that uses low impedance injectors, which the green-tops from the later lh2.4 are.








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      FUEL INJECTORS--How to Clean and Store 700 1989

      posted by  544-4ever on  Sat Jan 25 10:38 CST 2014
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      last visit: Mon Oct 20 05:50 CST 2014
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      I appreciate all the responses. Jerry, the injector was not squirting, and this was all on one cylinder. the four from u-pull were all bad, prob. been sitting too long. have power to all, did not check resistance. Will get my friend with the skills over and do further checking and post. Will look at cleaning sites too, cost to clean 4 less than 1 new injector. Thanks, Ken.








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        FUEL INJECTORS--How to Clean and Store 700 1989

        posted by  jerryc on  Sun Jan 26 13:05 CST 2014
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        last visit: Wed Oct 8 21:28 CST 2014
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        the four from u-pull were all bad, prob. been sitting too long. have power to all, did not check resistance.

        Almost certainly they did not work due to incorrect resistance. lh2.2 did not use a resistor pack, lh2.4 did. Greentops are all from later cars I believe, those are what are on my 92-3-4-5, thus were low resistance.








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    FUEL INJECTORS--How to Clean and Store 700 1989

    posted by  someone claiming to be 23hudson on  Sat Jan 18 10:38 CST 2014 [RELATED]

    I have a 89740 sent a spare set of injectors from the junkyard to Kb ,Their site is on here somewhere,,,Car ran PERFECT after they did it .5 yr s ago,,was $15/inj.w new seals








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      FUEL INJECTORS--How to Clean and Store 700 1989

      posted by  spasske on  Wed Jan 22 08:26 CST 2014
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      last visit: Thu Oct 23 10:11 CST 2014
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      There is a machine shop by me that has the machine that sprays the cleaning fluid through. They test the spray pattern and put on new seals. Fixed a leaking injector and made the rest good as new. for about 90$

      There are other mail order places you can send them too if there is nothing local.
      --
      Paul NW Indiana '89 744 Turbo 175K/ '90 745 turbo 145K







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