Compression issue? Parts and guide to fix

Discussion in 'Mech Tech' started by jameswick89, Mar 19, 2020.

  1. So back at it this morning.

    So when I unplug this the engine will run 20200607_124951.jpg
     
  2. davidoft

    davidoft Sponsor

    check it’s not jammed
     
  3. Have you got a hose wrong, perished or an air leak?
     
  4. Here's a little video

     
  5. .
     
    Last edited: Jun 8, 2020
  6. So got a little bored and started looking at ebay, i have just seen someone selling twin carbs that's caught my eye, should I look to move over to carbs or stick with the FI?


    https://www.ebay.co.uk/itm/143622323159
     
  7. Get what you have working first, otherwise you risk compounding one problem, with another.

    After that it's your money, your choice :thumbsup:
     
    Coda, Valveandy and jameswick89 like this.
  8. Why does plugging in my AFM kill the engine. Help :(
     
  9. Zed

    Zed Gradually getting grumpier

    I'm sorry I know nothing of F.I.

    Post lots of photos of your installation wiring and vacuum pipes etc, someone may spot a mistake.
     
    jameswick89 likes this.
  10. I just went through some old samba post ( they are very uptight over there:eek:) found a post with he exactly same issues but of course no resolution.

    I know the it's not stuck and I tested the fuel pump by having the ignition on and pushing the flap.
     
  11. Knowing nothing of FI.. and this is prob why I've avoided it.. do you still get 12v at the coil when you plug your AFM back in?.. might be shorting something if your wiring is wrong..


    Sent from my SM-T580 using Tapatalk
     
    jameswick89 likes this.
  12. Zed

    Zed Gradually getting grumpier

    It went before...so it must be something you've wired or plumbed wrong?

    You have some exhaust leaks too I think.
     

  13. Must be but I've looked back at videos and photos and think everything is back in correctly.

    So what you're saying is I should buy carbs :theforce:

    I'm going to have a hunt online for images of the wires the Bentley isnt very helpful being black and white
     
  14. Zed

    Zed Gradually getting grumpier

    FI is better than carbs, you have it and it was working before so it'll work again. :thumbsup:
    Is your cold start valve working?
     
  15. I just remembered I swapped my thermo time switch for a cleaner one I had going to be a nightmare to get to but I'll swapping that
     
    Zed likes this.
  16. Well that didnt work, tried a different ECU, and double relay
     
  17. Dubs

    Dubs Sponsor supporter extraordinaire

    jameswick89 likes this.
  18. Screenshot_20200611-221513_Drive.jpg Does any one know it terminal one should go to + or - on the ignition coil
     
  19. davidoft

    davidoft Sponsor

    Negative , but that’s not the problem as it simply wouldn’t run
     
  20. It runs ok with the afm unplugged, it sounds like there is a fuel issue like it's being starved
     

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