1995 306DT Bosch FI Pump

Discussion in 'Peugeot 306' started by Jim Mason, Jan 31, 2006.

  1. Jim Mason

    Jim Mason Guest

    Hi

    After having changed glow plugs, air filter and fuel filter (filter filled
    with injector cleaner before boxing up) my 306 is running fantastically
    well again and I would defy anyone to tell it has done 175K on a blind
    hearing of the engine. However a small niggle still remains - on starting
    from cold the engine misses slightly and gives a puff of smoke then settles
    out after 5 or 6 seconds (quicker if it is revved slightly). I am confident
    all the glow plugs are working OK (genuine Citreon/Peugeot ones). A
    workmate has suggested it could be as simple as the cable needing adjusting
    on the fast idle speed. Is this a good way to progress?

    Jim
     
    Jim Mason, Jan 31, 2006
    #1
  2. Jim Mason

    davek Guest

    workmate has suggested it could be as simple as the cable needing
    Might be cold start setting (needs to be done when engine is stone
    cold-leave it with the man overnight).
    White smoke? Unburned fuel, would usually indicate duff glowplug. Guess one
    in four could be a bit iffy.
    Try giving it two sessions of preheat before starting (not recommended as a
    regular feature-it can harm the glowplugs apparently).
    DaveK.
     
    davek, Feb 1, 2006
    #2
  3. Jim Mason

    Jim Mason Guest

    It wasn't anything to do with that - fast idle thermostat working fine -
    revs around 1050rpm cold, 900 hot.
    Is there another setting apart from the fast idle to aid cold starts?

    Jim
     
    Jim Mason, Feb 4, 2006
    #3
  4. Jim Mason

    Brian Guest

    From memory, yes there is an electrical device on the pump which alters the
    injection timing when cold. the wires to this are on the front, going to the
    drive end. Don't confuse with the stop solenoid.
    What method do you use to start from cold? I always pu my foot down on the
    pedal first. Starting at tickover might give uneven running to start with.
     
    Brian, Feb 5, 2006
    #4
  5. Jim Mason

    Jim Mason Guest

    I'll have a look though I don't recall this.
    Doesn't putting your foot on the pedal mean the glow plug heating is cut
    short after the initial timed setting?

    The more I think about it the more I put it down to one or more worn
    injectors which would possibly explain the large carbon build up on the two
    failed glow plugs. Haynes suggests that the injectors should be overhauled
    after every 60000 miles. Mines haven't been looked at for 175000 miles! And
    are unlikely to be now unless it was at a reasonable price - anybody any
    suggestions on cost? Apart from the irregular and slightly smokey start in
    cold weather the car is running superbly - it is probably only worth £200
    so the longer I can run it the better.

    Jim
     
    Jim Mason, Feb 5, 2006
    #5
  6. I'll have a look though I don't recall this.
    Doesn't putting your foot on the pedal mean the glow plug heating is cut
    short after the initial timed setting?

    The more I think about it the more I put it down to one or more worn
    injectors which would possibly explain the large carbon build up on the two
    failed glow plugs. Haynes suggests that the injectors should be overhauled
    after every 60000 miles. Mines haven't been looked at for 175000 miles! And
    are unlikely to be now unless it was at a reasonable price - anybody any
    suggestions on cost? Apart from the irregular and slightly smokey start in
    cold weather the car is running superbly - it is probably only worth £200
    so the longer I can run it the better.

    You can get them on an exchange basis for £25 here:
    http://www.parts4peugeot.com/acatalog/Online_Catalogue_Fuel_System_103.html
     
    Keith Willcocks, Feb 5, 2006
    #6
  7. Jim Mason

    Brian Guest

    Is there another setting apart from the fast idle to aid cold starts?
    If you look at the top of the injector pump, you will see microswitch which
    is controlled by the throttle opening. It has to be activated for quite some
    time before the afterburn on the heater plugs is stopped. Putting your foot
    down at the point of starting until the engine catches will certainly not
    affect this.
    <injectors which would possibly explain the large carbon build up on the two
    Don't believe everything which Haynes tell you. They also insist that the
    cam belt is changed every 36k miles, when Peugeot say 72k. PSA make no
    mention of routine injector maintenance.
    I know many engines which have had the original injectors for well over
    100k. If one is failing, you will hear that characteristic "knock", one
    cylender firing more heavily.
    Injectors drip when badly worn, allowing pre-ignition.
    If you have a build-up on the heater plugs, a pound to a penny, it is caused
    by lubricating oil being burnt.

    If you go to a decent fuel injection specialist, they will regrind the
    nozzles for you, or you can get exchange units as already described.
     
    Brian, Feb 7, 2006
    #7
  8. Jim Mason

    Jim Mason Guest

    Central Scotland.

    Jim
     
    Jim Mason, Feb 8, 2006
    #8
  9. Jim Mason

    Chris Guest

    If you got problem with Injectors its best to let some one know what
    they are doing to do them,like the company in Wimbledon called Watson
    Deisels,tel numbers 02088793584-02088793861 give them a call if you
    live, near wimbledon. but i bet they can help you in any way..
    from Chris Addlestone Surrey
     
    Chris, Feb 8, 2006
    #9
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