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Old 06-26-2010, 08:57 PM
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Default VW carb question

Does anyone know what the electrical connection in the lower left in the photo is for and what it does?
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Old 06-26-2010, 09:01 PM
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Yes, it is the cut off solenoid I believe.
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Old 06-26-2010, 10:17 PM
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Yup, cuts the fuel flow when the car is shut off. Basically an 'anti-diesel' setup.
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Old 06-27-2010, 05:03 PM
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Default Not what I wanted to hear

Not what I wanted to hear. My car (68 VW with auto- stick) won't idle. I have heard something about a idle positioner (?) on an auto-stick and was hoping this was it and was bad. The idle is set high in order to run, jumps bigtime when putting into gear and still dies when coming to a stop.
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Old 06-27-2010, 09:25 PM
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Oohh.. autostick. Could be a bunch of things, one of which according to the symptoms is the vacuum accumulator. If there is even the slightest leak the system won't work right, and that's why many were torn out and replaced with a traditional stick shift. You'll need to find a VW mechanic who really knows those systems inside and out. The shift sensor on the stick (actually, underneath the plate) is only part of it, but I don't think it would lead to those symptoms... unless you're leaving your hand on the stick all the time. Any pressure downwards will activate the switch, so shift and get your hand off the stick!
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Old 06-28-2010, 02:33 AM
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Default VW Carb Question

No longer have the VW chutch disingager. Shifter has been replaced with a Hertz shifter. Button on it is a off/on switch instead of a momentary contact, Dumb, dumb, dumb. Shifts hard in reverse and low, hard in first and smooth in second. I read someware that the clutch servo could be adjusted to smooth out the jirking but I don't know how to do this. Still, while coasting to a stop ( at 15 MPH ) it most likely will stall.
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Old 06-28-2010, 02:42 AM
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Ill be watching this topic with must interest.
My daughter 71 has an auto-stick. And god knows what the DPO (DUMB PRIOR OWNER) did to it.
We havent ever tried to start the thing yet. just sitting in the garage for now.
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Old 06-28-2010, 07:11 AM
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Other than checking the level of the ATF to make sure that's correct, I can't help with adjustments. Autosticks are a specialty item - even some transmission shops won't touch them.
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Old 07-13-2010, 10:38 PM
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Default VW Carb

Could be as simple as a clogged idle jet. Very common problem with the pict 34 carbs. The idle jet is on the right side of the carb as seen the the photo. Also, if the car and carb have any mileage on them the carb cross shafts get worn and allow air to be sucked in. This will cause a poor or inability to idle. If this is the case I alway increase the size of the idle jet to compensate for the air leakage. Works everytime. Best way to know if its an idle jet prob is to crack open the idle jet just alittle (1/1 to 1/4 turn ) and see if you are able to get an idle.
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Old 07-14-2010, 05:03 PM
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Default Carb problem solved

Couldn't fix it. Gave up and replaced the carberator. Now outside of a intermitant pedal sticking problem it idles fine.
Thanks for everyones input.
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