T25 Compression Low

Discussion in 'Mech Tech' started by PSG, Feb 27, 2015.

  1. Your eyes are better than mine but a straight edge across the tops would show it.
     
  2. PSG

    PSG

    Is oil going to ******* out all over me when I remove it though, this is the question.
     
  3. does it matter!
     
  4. Looks ok to me
     
  5. PSG

    PSG

    I could film it and do a sexy rub down if it does.
     
    Dicky and zed like this.
  6. davidoft

    davidoft Sponsor

    @PSG

    Wanna givee a call, I have had this before and it was collapsed followers, yours in 1.9 water cooled DG code engine. Isn't it ? :)
     
    zed likes this.
  7. davidoft

    davidoft Sponsor

    Cts are hydraulic
     
    zed likes this.
  8. Have you dropped the oil and checked for metal particulates?
     
  9. PSG

    PSG

    Paul Weeding likes this.
  10. PSG

    PSG

    so i have been shown this,
    [​IMG]

    and it seems that i am talking about cylinder two if this diagram is correct. Which also means that if that is the case, that may be why it is not quite right. I was under the impression it went anticlockwise 1-4, and not the above? It would explain alot.
     
  11. Zed

    Zed Gradually getting grumpier

    That is right, but does not explain your big gap.
     
  12. Zed

    Zed Gradually getting grumpier

    Your pic sows 1 or 4?
    no it doesn't, I hadn't twigged you pictured from above.
     
  13. PSG

    PSG

    yeah pic from above. Still think there is a dodgy follower though.
     
  14. Zed

    Zed Gradually getting grumpier

    yep, rip out the fushrod tube. On a t4 it's just possble to shine a light and look down the tube to see the follower.
     
  15. davidoft

    davidoft Sponsor

    @PSG

    When doing the gaps are you turning the engine 1/2 a turn anti-clockwise at the crank pulley, the Top dead centre on your engine is at the case join at the top? If not you won't get it right, you can do the job with telescopic tubes but they aren't cheap, so you only want to pull out what you need, also these can suffer with cam lobes wearing flat so, how many cylinders have the issue and how many valves on each cylinder?

    Also if you don't pump up the followers you can have the issue you have, lazy followers

    5 mins chat on the phone will be quicker than lots of posts :)
     
  16. PSG

    PSG

    Ok @davidoft send me your number I will call you over the wknd at some point.
     
    davidoft likes this.
  17. PSG

    PSG

    [​IMG]

    Just pulled this. Not even hydraulic. Wtf is going on I am either clueless or this engine doesn't have hydraulic followers.
     
  18. Zed

    Zed Gradually getting grumpier

    Someone rebuilt it with solid followers?
    show us both ends please. :)
     
  19. Zed

    Zed Gradually getting grumpier

    The cam end looks rather blue (been very hot).
     
  20. PSG

    PSG

    [​IMG]
     

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