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carb adjustment
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  1. Aircooled Mechanical Tech
    Hey dudes, Just when it was all going so well! Engines been running great (1973 with a 1600), purring and nice timing, clear exhaust etc and suddenly its all gone wonky! First presented as a loss in idle speed (stalling at junctions) and hesitation when pulling away (flat spot before picking...
  2. Aircooled Mechanical Tech
    This thing has eaten most of my annual leave over the past few years. Ok final push as daughter is twiddling her thumbs waiting to use this, only 2 years behind schedule. Set choke and carb (30 pict 3) to basic running settings, set timing with gun, engine gets to high revs and fails under...
  3. Items Wanted - AUTO
    hi im after some 57 idle jets for my twin kadrons, not sure if any exist or if they just go up in increments of 5 -50, 55 etc, if anyone has any or knows anywhere I can get some, or maybe someone knows of an alternative make which fits, let me know cheers charlie
  4. Aircooled Mechanical Tech
    I have a 1979 Bay 2.0 auto. I want to get the carbs set properly. Running rich. Looking for somewhere in the North West / Merseyside area.
  5. Aircooled Mechanical Tech
    Hi All I am rebuilding my 1973 1200 Beetle engine and have fully stripped, cleaned & rebuilt the standard Solex 30 Pict 3 carb. Can any of you gurus out there help me with what the basic settings are to be able to get the engine running. Looking on the exploded diagrams I have, there seems to...
  6. Aircooled Mechanical Tech
    Hi, Can anybody recommend what size jets I should fit in my beach buggy's Twin Weber 36IDF carbs. I currently have a 130 main but my bug isn't running particularly well once she gets going. I’m running a 1,641cc engine (Engine Number: AS61xxxx) with the following spec: Mahle 87mm B + P German...
  7. Aircooled Mechanical Tech
    Hi, i've just changed the carburettor on my 77 camper, and now its seems to be idling too fast. Its a 34 pict 3 solex carburettor and i have set it up to the standard top screw 2 turns bottom screw 3.5 turns, but this does not seem to alter the idle speed... any clues?
  8. Aircooled Mechanical Tech
    Eurocarb's Weber 34 ICTs Hi guys. Just one question regarding Eurocarb's Weber 34 ICTs. Are these (pre-) jetted 34 ICTs still using an F78 emulsion tube? As far as I know the F78 tube is inappropriate for our T1 aircooled engines. Some basic issues on tuning these 34 ICTs with an F78 tube for...
  9. Aircooled Mechanical Tech
    Hi, My 1600 Bay is running to rich, i have a solex 34 pict 2 carb but im not sure which way to turn the main jet to make it less rich? Can anybody help?
  10. Aircooled Mechanical Tech
    ...okay I've done type 1's for the last 20 odd years, no worries ;)....so, type 3 engines are all new to me :rolleyes:....timing (009, so guessing the strobe settings are the same?)....and twin carb settings please ;)...Runs great ('67 square) but the only issue is a slow idle when warm, cutting...
  11. Aircooled Mechanical Tech
    I read in my trusty Jim Muir book that my crappy hesitant accelaration might be coz my fuel pump diaphram is buggered. Anyone know if you can replace the diaphram or if I will need a new fuel pump? If I can replace it does the fuel pump come apart easily? Cheers Stratts
  12. Aircooled Mechanical Tech
    1600 twinport, all standard, set the valve clearances, timing. Solex 31 pict 3. Haynes says to adjust the big screw, Air Bypass, to set the idle. Done that. Then adjust the smaller screw to adjust the mixture. I get really lumpy running unless I back this smaller screw all the way out. Then...
  13. Aircooled Mechanical Tech
    i reset my points 2day. then statically timed it to 7.5btdc. i then put a strobelight 2 check but it was nowhere near the 7.5btdc mark. when i took her a cruise she sounds fine but lacking the usual power. im confused where did i go wrong? its a 1600 ad engine with a vacuum advance dizzy. i...
  14. Aircooled Mechanical Tech
    After fitting my recently rebuilt 34pict3 carb (1600 TP) the bus runs fine until I suddenly press hard on the pedal and then it starts to die. If I slowly press the pedal it runs fine. I have played with the mixture and bypass screw together with timing but to no avail. Suggestions anyone...
  15. Aircooled Mechanical Tech
    Could someone correct me if I'm wrong on the Solex 30PICT-2 Carb adjustment procedure It has 3 adjusting screws: Idle speed on the throttle lever, Volume control on the left and an emission control on the right (not sure what to do with this one). Procedure: Increase idle speed to about 1500...
  16. Aircooled Mechanical Tech
    So I have got my square back after having the crankshaft oil seal replaced....(engine out) Anyway it now has an annoying 'issue' I start the car from cold (starts first turn as normal) Runs 'ok' tickover wise for about 30s then races to about 3000rpm until the auto-choke comes off and the car...
  17. Aircooled Mechanical Tech
    I have a 34 pict 3 carb on my standard 1600 tp engine, the engine will start and run but wont idle. It spits fuel out of the top of the carb when you lift off the gas, and then stalls straight away when you leave it to try and idle. Bit of a novice to aircooled engines so any help would be...
  18. Aircooled Mechanical Tech
    Hi guys I have a 1303 1973 cab and want to check ignition timing and adjust the carb myself, am abit confused on the meters needed whether they are combined or individual, I know this may sound odd but could someone please enlighten me. regards bob
  19. Aircooled Mechanical Tech
    Hi All Got a wedding on sat for my mate which iv'e promised my Karmann ghia. Have been following the carb idle adjustment advice on Rob and Dave's vw page www.vw-resource.com/tune-up.html#idle When i go to adjust the bypass screw, the big one on the side i cant get it to register much in the...
  20. Aircooled Mechanical Tech
    Hi, I have a 2 litre engine fitted into my 72 bay and it will not stop popping on the 3rd and 4th cylinder side. I have checked for leaks, changed plugs, leads, checked timing several times, new cap, rotor arm and have even fitted petronix but it still pops! While being new to all this and...
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