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Injectors help

Discussion in 'Engine, Drivetrain, Fuel and Exhaust' started by MBFAN, Mar 26, 2020 at 7:32 PM.

  1. MBFAN

    MBFAN Senior Member

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    Your Mercedes:
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    Ref A0000786423

    Can anyone tell me if the above part number is an injector assembly or just a plastic housing ?

    Do I need the nozzles too. Or do I just need nozzles, I've read the plastic housings can break.

    Thanks
    Stuart
     
  2. John Laidlaw

    John Laidlaw Senior Member

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  3. OP
    MBFAN

    MBFAN Senior Member

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    Further investigation. I think these are for 280 and 320 SL. Mine is 300SL-24 so look like all separate bits.
     
  4. rayhennig

    rayhennig Senior Member

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    Yes, those are for the later M104 engine. I think you need:

    Injection nozzle: A0000785823 BOSCH : 0437502054

    Injection nozzle guide tube: A1160700077

    Injection nozzle bushing: A1030700054

    Injection nozzle seal ring: A1039970045

    That's what I fitted to my 300CE.

    RayH
     
  5. DREAMER NO2

    DREAMER NO2 Senior Member

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    Very rare if the plastic cage will need replacing . Rubber seals and o rings yes. And injectors may be .I changed 6 on my m103 but found it made very little if any after 31 years in situ .
     
  6. OP
    MBFAN

    MBFAN Senior Member

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    Thanks Rayhennig. I have already ordered those. The plastic cage no longer available but I found some. Working on the principle. If I dont get them they will break. If I get them I wont need them. Best to be prepared
     
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  7. DREAMER NO2

    DREAMER NO2 Senior Member

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    I did say that the cage will be fine,just as long as you dont go at removing them like a pig at a potato ha ha .
     
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  8. davemercedes

    davemercedes Senior Member

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    Don't worry, MBFAN - nothing worse than having it all in bits then breaking something for which you haven't got a replacement - for starters they won't be in stock when you need them - Mr Murphy is alive and well making laws about parts availability!
     
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  9. DREAMER NO2

    DREAMER NO2 Senior Member

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    dave its how it goes i came to the last one ot the injectors . And i remove the other 5 easy .But for some reason the bolt that holds down the injectorno 6 to cylinder head was stuck .Only way i could remove the old injector was to force the holder open to get a better grip on the allen bolt .Well that damaged the injector holder . I went on to Ebay and good friend who sent me 2 one to use and one to keep .
     
  10. davemercedes

    davemercedes Senior Member

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    I'm glad you got out of trouble - and isn't that what friends are for!
     
  11. DREAMER NO2

    DREAMER NO2 Senior Member

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    Dave yes,, and i am here to help every one that needs it, just like you are, Thats like most of us on the forum. Dave i have just noticed that your in Worcester . We have a club meet up at the Waggon and Horses on the Storbridge Road would be a nice ride out in the warm weather .They hold the meet on Monday and Sunday in the summer .Its informal you just show up and talk to others that love their cars .No fee and no scrutiny . They say if you like it then they will like it . All sorts show up not only classic cars but modern cars also .
     
    Last edited: Mar 28, 2020 at 1:35 PM
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