Adjusting that carberator on a VW motor

[BigAl]

Heres a simple way to fine tune your carb !



Basic Adjustment of the 34PICT-3 Carburetor

The 34 PICT-3 has three user adjustments:
- Fast Idle Screw
- Bypass Screw
- Volume Control Screw

​

1. Fast Idle Screw - Run the engine until it reaches operating temp and turn it off. Ensure the Fast Idle adjustment is "Off the Cam" (as shown in figure 1). Loosen the Fast Idle screw until it doesn't touch the cam at all, slowly screw it in until it just touches the cam, turn it in an additional 1/4 turn.
2. Volume Control Screw - Gently turn in the screw till it bottoms out (this is a tapered screw bottoming out into a metered orifice so be careful). Back it out 2.5 turns.
3. Start the engine.
4. Bypass Screw - Adjust the car's idle to 850 RPM for a manual transmission and 900 RPM for an autostick.
5. Volume Control Screw - Slowly adjust the Volume Control Screw to achieve the fastest idle. It shouldn't take much beyond 1/2 turn ether way. Then turn it very slowly IN until the revs drop by about 30rpm. Listen until you can just hear the RPMs start to drop, about 1/8th turn.
6. Bypass Screw - Adjust the idle back to 850 RPM (manual) 900 RPM (Autostick) using the Bypass Screw.



Posted at MS Gulf Coast Volkswagen Club

 

[frank]

Nothing like swiping content from another website without giving credit:

http://www.msgulfcoastvwclub.org/TechPages/Tech4.html

 

[BigAl]

Nothing like swiping content from another website without giving credit:

http://www.msgulfcoastvwclub.org/TechPages/Tech4.html

Sorry , I said in my other electrical thread that there was good infor on the internet web sites and this came from another site that was copied by them also .It was in my personal stored pictures section and I had saved the picture /text only .


No offense meant .Mods can pull this if they want .

 

[frank]

I think all you need to do is edit your first post and add your source. That should keep the original authors happy. It is just like any book you read that has the bibliography at the back, site your source.

 

[BigAl]

I Can't edit it , the 1 hour "edit time limit" passed and I did not know the source anyway . Thanks for posting it . They have lots of good stuff .

 

[Bulldog1401]

Nothing like swiping content from another website without giving credit:

http://www.msgulfcoastvwclub.org/TechPages/Tech4.html

And thank you, Frank, for doing your best to inhibit the free transfer of information for the purpose of bettering a hobby. Were you looking for money or something?