Bleedin flat spot!!

Discussion in 'Mech Tech' started by PIE, Oct 31, 2011.

  1. PIE

    PIE

    I have just put my engine ( 1600 TP standard single Solex) back in after putting a new top end on. I treated it to a recon carb. Its in and running but was a bugger to get to idle and it has a flat spot as you first press the throttle, I thought it was an air leak but Ive spayed WD40 then Butane all around the intake but nothing. Im fed up. :(
     
    PIE, Oct 31, 2011
    #1
  2. moley76

    moley76

    Hi pie i had exactly the same problem does it just sort of hesitate and splutter and really lacking power but can pick on full throttle? Then you will need to try this website out as it show's you how to setup your carb it made mine into a completely different van hope it help's

    http://www.vw-resource.com/34pict3.html
     
    moley76, Oct 31, 2011
    #2
  3. PIE

    PIE

    I have done the usual, but it seems difficult to set the carb as normal, the idle screws (volume & bypass) don't seem to make much difference, I have set the timing best I can in the circumstances.
     
    PIE, Oct 31, 2011
    #3
  4. moley76

    moley76

    what make of carb is it and did you get it recon or did you buy it as a recon? i had a chinese one and no end of problem's and in the end managed to find a new solex and set that up.
     
    moley76, Oct 31, 2011
    #4
  5. PIE

    PIE

    I got it from Bugjulie off VZI, its got a standard Vac Dizzy. Its a standard Solex.
     
    PIE, Oct 31, 2011
    #5
  6. sailorbill

    sailorbill

    Hi Pie,

    I had a very similar problem after re-installing a stock solex 34-pict 3 that had just been refurbed by Laurie Ellis.

    Basically there were 2 things wrong - it had a x125 main jet - which is fine for a bug but not a bus, and the accelerator pump was'nt giving enough 'squirt'.

    Changed the jet for a x130 (sourced from a lady on eBay who sells Mikuni jets that are a perfect fit) and adjusted the accelerator pump in accordance with the instructions on Rob and Daves VW resource pages.

    Now it's like driving a different vehicle.

    (mine also has a SVDA dizzy - I junked the 009).

    Good luck - it's just a matter of changing 1 thing at a time to see what works.
     
    sailorbill, Nov 1, 2011
    #6
  7. Birdy

    Birdy Not Child Friendly

    I'd suggest you fit your old carb and see how it goes. Could be a rubbish carb.
     
    Birdy, Nov 1, 2011
    #7
  8. PIE

    PIE

     
    PIE, Nov 1, 2011
    #8
  9. PIE

    PIE

    Birdy, you were right on the money K2U, I went through everything electrical, timing, vacuum leaks in the end repaired me old carb best I could and it ran straight away, so 100 quid and two days on me back with a day off work with no pay and the new carb is still in the box in me garage, being philosophical were all including the carb supplier working with kit thats 40 yrs old :(
     
    PIE, Nov 2, 2011
    #9

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