Important! : saxo smoke. Help please

  1. L-plater Joined: Mar 2017 Posts: 42
    #1
    friends saxo 1.5 diesel TUD5 VJX engine. There is white smoke in my car. the injector is clean. why is this smoke ??

    VİDEO: https://youtu.be/2TgPTTHsOcw

    1-) Timing?
    2-) injector?
    3-) Valve?

    ???
  2. Saxperience Forum Bum Joined: Jan 2003 Scotland Posts: 3380
    #2
    white smoke from a diesel is always caused by excess or unburnt fuel--
    and the puffs of smoke indicate it is a faulty injector , could be dripping --swop that one to anther cylinder--if smoke moves to it --then you have your answer
    If you think it is smoking evenly from all cylinders --pump or timing of pump --is incorrect
    If it is the later type with ecu then it could be that or the advance unit
    sounds very noisy --check valve clearances --shims may need changing
  3. L-plater Joined: Mar 2017 Posts: 42
    #3
    1 and 2 pistons smoke
  4. L-plater Joined: Mar 2017 Posts: 42
    #4
    1 and 4 pistons smoke
  5. L-plater Joined: Mar 2017 Posts: 42
    #5
    Quote:
    Originally Posted by erman83 View Post
    1 and 2 pistons smoke
    Cancel
  6. L-plater Joined: Mar 2017 Posts: 42
    #6
    Not 1 and 2.

    1 and 4 smoke
  7. L-plater Joined: Mar 2017 Posts: 42
    #7
    injectors are clean
    There are 3 possibilities
    1 timing
    2 valve adjustment
    3 air in the diesel hose
    ??
  8. L-plater Joined: Mar 2017 Posts: 42
    #8
    I don' t know
  9. Saxperience Forum Bum Joined: Jan 2003 Scotland Posts: 3380
    #9
    first job then is get injectors tested properly
    lets face it it must be at least 15years old !!
  10. L-plater Joined: Mar 2017 Posts: 42
    #10
    the injectors were tested. It gives 120 bar pressure. No leaks.
  11. Saxperience Forum Bum Joined: Dec 2012 Perth Posts: 3665 Peugeot 106 1.1 Turbo Peugeot 106 1.5D Turbo Peuge
    #11
    It's the injection pump timing, VJX engines have a semi electronic advance and these fail.

    You have Bosch pump, there are 2 plugs. one is black and one is blue (both are 2 pin plugs). Unplug the blue one and see how it runs. That should default it onto mechanical static timing.
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  12. L-plater Joined: Mar 2017 Posts: 42
    #12
    Thank you very much. I'm going to have to get a blue socket. I'll give you the info.
  13. Saxperience Forum Bum Joined: Dec 2012 Perth Posts: 3665 Peugeot 106 1.1 Turbo Peugeot 106 1.5D Turbo Peuge
    #13
    Quote:
    Originally Posted by erman83 View Post
    Thank you very much. I'm going to have to get a blue socket. I'll give you the info.
    No i meant disconnect it.

    Lucas pump in picture, but the connector [9] is blue and the same as the Bosch Pump

    https://www.dropbox.com/s/3yq4c8ofpigyaee/Pump.png
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  14. L-plater Joined: Mar 2017 Posts: 42
    #14
    I do not fully understand. will I try to remove the blue socket?
  15. L-plater Joined: Mar 2017 Posts: 42
    #15
    I apologize, I do not know your language at all.������
  16. L-plater Joined: Mar 2017 Posts: 42
    #16
  17. L-plater Joined: Mar 2017 Posts: 42
    #17
    The blue socket came out. there is no smoke.
    what is the problem?
  18. L-plater Joined: Mar 2017 Posts: 42
    #18
    but when the blue socket came out the engine worked very jerky. what will I do?
  19. L-plater Joined: Mar 2017 Posts: 42
    #19
    Friend please answer
  20. L-plater Joined: Mar 2017 Posts: 42
    #20
    please I need an urgent response
  21. Saxperience Forum Bum Joined: Dec 2012 Perth Posts: 3665 Peugeot 106 1.1 Turbo Peugeot 106 1.5D Turbo Peuge
    #21
    Sorry I was travelling away from home. Engine should run good with the blue socket unplugged.

    Re-tension the timing belt to set the pump timing back to centre. Only if you are confident.
  22. Saxperience Forum Bum Joined: Dec 2012 Perth Posts: 3665 Peugeot 106 1.1 Turbo Peugeot 106 1.5D Turbo Peuge
    #22
    Also make sure fuel filter has no water.

    Check the fuel feed ( clear pipe ) has no bubbles. If there is bubbles there is a fuel leak.
  23. L-plater Joined: Mar 2017 Posts: 42
    #23
    Welcome friend

    blue socket. No smoke. Is the trigger belt loose?
  24. L-plater Joined: Mar 2017 Posts: 42
    #24
    or the timing is wrong?
  25. L-plater Joined: Mar 2017 Posts: 42
    #25
    Re-tension the timing belt to set the pump timing back to centre???

    I do not fully understand
  26. Saxperience Forum Bum Joined: Jan 2003 Scotland Posts: 3380
    #26
    Quote:
    Originally Posted by MartinObviously View Post
    Sorry I was travelling away from home. Engine should run good with the blue socket unplugged.

    Re-tension the timing belt to set the pump timing back to centre. Only if you are confident.
    If belt needs retensioning --then surely time to change it?--
    must be very worn to cause a timing problem
  27. L-plater Joined: Mar 2017 Posts: 42
    #27
    new changed
  28. Saxperience Forum Bum Joined: Dec 2012 Perth Posts: 3665 Peugeot 106 1.1 Turbo Peugeot 106 1.5D Turbo Peuge
    #28
    Quote:
    Originally Posted by axsaxoman View Post
    If belt needs retensioning --then surely time to change it?--
    must be very worn to cause a timing problem
    The bolts which hold the pulley to the hub can slacken and cause the timing to move. It's far more critical than on a a petrol engine. Re-tensioning the correct way will set everything back to exactly 0.
  29. Saxperience Forum Bum Joined: Dec 2012 Perth Posts: 3665 Peugeot 106 1.1 Turbo Peugeot 106 1.5D Turbo Peuge
    #29
    I think the diesel pump is faulty internal.

    If it runs good with no blue socket. Leave it disconnected.
  30. L-plater Joined: Mar 2017 Posts: 42
    #30
    do I completely unplug the socket
  31. L-plater Joined: Mar 2017 Posts: 42
    #31
    but the engine is very jerky. blue plug at the socket?
  32. Saxperience Forum Bum Joined: Dec 2012 Perth Posts: 3665 Peugeot 106 1.1 Turbo Peugeot 106 1.5D Turbo Peuge
    #32
    Did you check the fuel line for leak?

    You should not see any bubbles
  33. Saxperience Forum Bum Joined: Jan 2003 Scotland Posts: 3380
    #33
    Quote:
    Originally Posted by erman83 View Post
    new changed
    was it ok before change ?
  34. L-plater Joined: Mar 2017 Posts: 42
    #34
    No bubbles in fuel hose
  35. L-plater Joined: Mar 2017 Posts: 42
    #35
    blue plug comes out but the engine is very jerky.
  36. L-plater Joined: Mar 2017 Posts: 42
    #36
    ??????
  37. L-plater Joined: Mar 2017 Posts: 42
    #37
    blue plug comes out but the engine is very jerky
  38. Saxperience Forum Bum Joined: Dec 2012 Perth Posts: 3665 Peugeot 106 1.1 Turbo Peugeot 106 1.5D Turbo Peuge
    #38
    Quote:
    Originally Posted by axsaxoman View Post
    was it ok before change ?
    Quote:
    Originally Posted by erman83 View Post
    blue plug comes out but the engine is very jerky
    Was your engine jerky before change?

    Yes or No?

    I think timing is too retarded. Of the injection pump.
  39. L-plater Joined: Mar 2017 Posts: 42
    #39
    ok I will check
  40. L-plater Joined: Mar 2017 Posts: 42
    #40
    Hello friends
    what does the gasket in the picture. my car just can't be broken.
  41. Saxperience Forum Bum Joined: Dec 2012 Perth Posts: 3665 Peugeot 106 1.1 Turbo Peugeot 106 1.5D Turbo Peuge
    #41
    fuel pressure relief. On hot day.

    If gasket was faulty, fuel lines would have bubbles.
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  42. L-plater Joined: Mar 2017 Posts: 42
    #42
    Hmm ok. Thank you
  43. L-plater Joined: Mar 2017 Posts: 42
    #43
    Problem not solved. What does the black and blue plugs on the Bosch pump do?
  44. Saxperience Forum Bum Joined: Dec 2012 Perth Posts: 3665 Peugeot 106 1.1 Turbo Peugeot 106 1.5D Turbo Peuge
    #44
    Quote:
    Originally Posted by erman83 View Post
    Problem not solved. What does the black and blue plugs on the Bosch pump do?
    Blue plug - electronic timing advance. it uses a 12v pulsed input from ECU.

    Black plug - I am not sure.
  45. Saxperience Forum Bum Joined: Jan 2003 Scotland Posts: 3380
    #45
    after all your messing about --and getting nowhere --why not take it to someone who can plug into the ecu and set the timing correctly while engine is running --
    they will also be able to see if the electronic advance is working as it should
    on diesels smoke is caused mainly by incorrect timing or of course worn out engine parts like valve guides and piston rings
    it will be timing of pump --could be pump is knackered --but proper timing set -up after doing other mechanical checks --like the valve clearances,proper injector testing is the way to go .
    you changed the belt and have never answered if problem started after this --which makes me think it did --so it will be pump timing
    I once had a car with only 8k from new+ under 1 year old and it would not start first thing --but after first start of day --fine --cause valve clearances too close ,but as engine warmed up the alloy head expanded and moved camshaft away from cam follwers--so then it had some clearance ,
    vlave clearnces too wide --will alter valve timing as well --but more problems when they are too tight
  46. Saxperience Forum Bum Joined: Dec 2012 Perth Posts: 3665 Peugeot 106 1.1 Turbo Peugeot 106 1.5D Turbo Peuge
    #46
    Quote:
    Originally Posted by axsaxoman View Post
    after all your messing about --and getting nowhere --why not take it to someone who can plug into the ecu and set the timing correctly while engine is running --
    they will also be able to see if the electronic advance is working as it should
    on diesels smoke is caused mainly by incorrect timing or of course worn out engine parts like valve guides and piston rings
    it will be timing of pump --could be pump is knackered --but proper timing set -up after doing other mechanical checks --like the valve clearances,proper injector testing is the way to go .
    you changed the belt and have never answered if problem started after this --which makes me think it did --so it will be pump timing
    I once had a car with only 8k from new+ under 1 year old and it would not start first thing --but after first start of day --fine --cause valve clearances too close ,but as engine warmed up the alloy head expanded and moved camshaft away from cam follwers--so then it had some clearance ,
    vlave clearnces too wide --will alter valve timing as well --but more problems when they are too tight
    I'm with you on the pump timing. it's not making sense.

    Also, these have buckets and shims

    The ECU is a pig on these. it has no feedback for the pump timing. it's a preset PWM signal for a given engine rpm and the rate of change of rpm from the crank sensor.
  47. Saxperience Forum Bum Joined: Jan 2003 Scotland Posts: 3380
    #47
    99% of the time pump timing if a diesel smokes
  48. Newbie Joined: Jan 2018 Posts: 6
    #48
    If the fuel pumping injection is not broken, the problem may because of leaking coolant. You may see more information and solution here:
    https://carfromjapan.com/article/car...-from-exhaust/