Injector repair

Discussion in 'General Motoring' started by Mickey, Apr 18, 2004.

  1. Mickey

    Mickey Guest

    Is it possible to repair injectors?
     
    Mickey, Apr 18, 2004
    #1
  2. =================

    What aren't they doing, and what have your tried so far?

    What kind of Honda?

    More info makes for more (intelligent) responses.

    'Curly'
     
    'Curly Q. Links', Apr 19, 2004
    #2
  3. Mickey

    Dave L Guest

    Yes, it is possible to replace injectors. A shop replaced the #1 and #3
    injectors on my '89 Prelude Si a little while back. Right now, I have one
    of the original ones leaking a little bit, so I'd like to change that one as
    well. However I'd like to try changing them myself and saving some $$ on
    labor if I can. Just don't know how to do it or if I should even attempt
    it. I know there are gaskets that need to be replaced as well, but it's
    something I've never done before.....

    -Dave
     
    Dave L, Apr 19, 2004
    #3
  4. Mickey

    Mickey Guest

    Sorry DAve I asked for repair, not for replacement, of course it is
    possible to replace them.

    Mickey
     
    Mickey, Apr 19, 2004
    #4
  5. Mickey

    Mickey Guest

    Hi.

    I think they are leaking a little, so that after about 2 hours after
    it has been driven it starts immediately as if it has enough gas
    and air inside the cylinders, which it shouldn't.

    So I would like to know if it is possible to repair them not to
    leak any more?

    Honda Civic Coupe 1.5 iLS, year 1995, 74 kW (101 PS)

    Mickey
     
    Mickey, Apr 19, 2004
    #5
  6. ===============================

    We had a leaky injector on our Odyssey, and the (overnight) symptoms
    were the exact ones described in the Owner's Manual for 'flooded engine'
    (which you'd never expect on an injected engine).

    We ran ethanol-enhanced gas thru it for the next few tanks and it never
    reappeared. Techron injector cleaner is supposed to be an even better
    solution, because they do get gummed up, and stick open.

    A google groups search for 'leaky injectors' might turn up lots of answers.

    'Curly'
     
    'Curly Q. Links', Apr 19, 2004
    #6
  7. If they were leaking, it would not start immediately - you'd have problems
    with long cranking and stumbling due to flooding.... which might be helped
    by holding the throttle half open. I don't think you have a problem.

    Rgds, George Macdonald

    "Just because they're paranoid doesn't mean you're not psychotic" - Who, me??
     
    George Macdonald, Apr 19, 2004
    #7
  8. Mickey

    Mickey Guest

    Thanx, I'll look on google groups.

     
    Mickey, Apr 19, 2004
    #8
  9. Mickey

    Dave L Guest

    Doh! I should have read that more carefully. Sorry.

    However I did listen to a conversation between a mechanic and customer some
    time ago. He said it is possible to repair it but normally not worth
    repairing vs. replacing. Wonder what the cost difference would be....

    -Dave
     
    Dave L, Apr 20, 2004
    #9
  10. Mickey

    Mickey Guest

    I think they are leaking very small quantities of fuel, if they are leaking
    a lot then you have flooding, thet happened when i first celaned them
    and 1 of them wasn't even closing.
    After another cleaning it starts too soon, as if in a few hours enough
    fuel leaks into cylinders so that they fire immediately.

    I'm 99% sure that this is what is happening.

    I wondered if injectors can be broken apart and repaired so that they
    don't leak?

    me??
     
    Mickey, Apr 20, 2004
    #10
  11. Mickey

    z Guest

    Depends what you mean by repair. There's a little needle (pintle) that
    fits into a nozzle (anvil) and when it opens, the gas spurts.
    <http://www.abheller.com/parti.html>
    <http://www.elsbett.com/gd/image22.gif>
    <http://www.thedieselstop.com/contents/images/69injector13.jpg>
    or variations on the theme
    <http://www.bwdautomotive.com/datastream/spring2000_data_stream/page4.html>
    Two possibilities for leakage: either some bit of crud is stuck in
    the hole and prevents the thing from closing, or else the needle is
    worn and doesn't seal well any more. Or both. If it's crud, it's
    possible you might be able to clean it out with injector cleaner of
    one variety or another.
    <http://www.bwdautomotive.com/datastream/winter_data_stream/page5.html>
    If it's wear
    (new = <http://www.grease4sale.com/lubricants_specialty_products/fuel_stabilizers/lb-dzl-pep2.jpg>,
    worn= <http://www.grease4sale.com/lubricants_specialty_products/fuel_stabilizers/lb-dzl-pep1.jpg>)
    in theory it can probably be repaired with a new pintle, but I've
    never heard of anyone trying, or any kind of repair kit, advice, etc.
    for anyone who might try.
     
    z, Apr 20, 2004
    #11
  12. Mickey

    Mickey Guest

    Thanks for info, very interesting and useful.

    Mickey.
     
    Mickey, Apr 21, 2004
    #12
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