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Thread: help with fuel injector removal

  1. #1
    Join Date
    Jan 2004
    Location
    Chapel Hill, NC
    Posts
    94

    Default help with fuel injector removal

    need a tip for removing the wiring harness connectors from the injectors for a m30 engine- bentley is not much help on this.
    have tried rocking the wiring channel from side to side while pulling up with some force- nothing seems to be releasing
    Chip
    '92 535i 5sp
    EAT chip, Sachs kit, RRT sport control and upper thrust arms, SS brakelines, Camber plates, Subframe inserts, 3.64 Diff, M5 (3.6L) calipers.
    '87 325iS

  2. #2
    Join Date
    Jul 2006
    Location
    kingsbridge, devon, uk
    Posts
    626

    Default

    take the clips off the top of the injectors

  3. #3
    Join Date
    Jan 2004
    Location
    Chapel Hill, NC
    Posts
    94

    Default access issue

    there doesn't seem to be much room on the valve cover side of the harness to access the clips-


    Quote Originally Posted by nizmainiac
    take the clips off the top of the injectors
    Chip
    '92 535i 5sp
    EAT chip, Sachs kit, RRT sport control and upper thrust arms, SS brakelines, Camber plates, Subframe inserts, 3.64 Diff, M5 (3.6L) calipers.
    '87 325iS

  4. #4
    Join Date
    Jan 2004
    Location
    Tampa Bay, Florida, USA
    Posts
    900

    Default

    Try spraying some Radio Shack contact cleaner/lubricant on the connectors, then work them loose.
    Ramon
    1994 540iA Nikasil EAT Chip
    Tampa Bay, Florida USA

  5. #5
    Join Date
    Jan 2004
    Location
    Chapel Hill, NC
    Posts
    94

    Default got it

    by working from the fuel rail side of the wiring harness, I could 'bend' the wiring channel far enough to access and remove the clips- luckily I had a second pairs of hands for this and the job went easier
    the head is out and will be sent off for a valve job
    Quote Originally Posted by nizmainiac
    take the clips off the top of the injectors
    Chip
    '92 535i 5sp
    EAT chip, Sachs kit, RRT sport control and upper thrust arms, SS brakelines, Camber plates, Subframe inserts, 3.64 Diff, M5 (3.6L) calipers.
    '87 325iS

  6. #6
    Join Date
    Jul 2006
    Location
    kingsbridge, devon, uk
    Posts
    626

    Default

    well done

  7. #7
    Join Date
    May 2004
    Posts
    485

    Default

    Quote Originally Posted by Chip
    by working from the fuel rail side of the wiring harness, I could 'bend' the wiring channel far enough to access and remove the clips- luckily I had a second pairs of hands for this and the job went easier
    the head is out and will be sent off for a valve job

    Chip,

    When you removed the head, did you do so with the manifold(s) still on?

  8. #8
    Join Date
    Jan 2004
    Location
    Chapel Hill, NC
    Posts
    94

    Default sort of

    the intake is still on, but I removed the front exhaust manifold before pulling the head

    Quote Originally Posted by Dash01
    Chip,

    When you removed the head, did you do so with the manifold(s) still on?
    Chip
    '92 535i 5sp
    EAT chip, Sachs kit, RRT sport control and upper thrust arms, SS brakelines, Camber plates, Subframe inserts, 3.64 Diff, M5 (3.6L) calipers.
    '87 325iS

  9. #9
    Join Date
    Jan 2004
    Posts
    128

    Default

    If i remember correctly you pull off the rubber gromet from the injector connector and then theres some sort of plastic clip that needs to be pried off, do the same for the other injectors and the wiring channel can be lifted an inch or two out of the way to make getting the injector clips off easier.

    Some proper fine hook tools would be handy but a Braddle(sp?) or small flat blade screw diver works ok to get the clips off.

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