I get about 10 emails a week from people asking what literature might be good for them to purchase for their new project. I recommend the Volkswagen Beetle and Karmann Ghia Official Service Manual Type 1: 1966-1969. You can purchase it here (affiliate link).
More info from Bentley Publishers:
This book features full wiring diagrams (including 6-volt systems), convertible top repair, carburetor rebuilding (30 PICT-1 and 30 PICT-2) and comprehensive year and model specifications and troubleshooting tables. Like the later-model Type 1 manual, this is a comprehensive source for service and repair information.
New Color Wiring Diagrams! The hardcover edition of this book now features an eight page color supplement with reproductions of original full-color Type 1 technical schematics.
- Full data and instructions for all major repairs on engines, clutches, and transmissions.
- Rebuilding and adjusting the carburetor for maximum economy and reduced exhaust emissions.
- How to rebuild disc and drum brakes for safer stops with older cars.
- Taking the play out of worn front ends and steering gears.
- How to align front and rear wheels for reduced tire wear and lower rolling resistance.
- Troubleshooting, replacing, or repairing every component of the electrical. system-with full wiring diagrams for every model.
- Complete specifications and instructions for money-saving tune-ups.
- Spark advance curves that will help you spot fuelwasting, worn-out distributors.
- Do-it-yourself body repairs that help keep older bugs looking new.
- Plus the comprehensive Volkswagen factory tolerances, wear limits, adjustments and tightening torque specifications that you’ve come to expect from Bentley manuals.
A must-have resource for anyone who owns a ’67 Beetle.