JBugs Tech Tip Directory

Engine Tech Tips

• VW Engine Calculator
• VW Engine Torque & Displacement Tables
• VW Engine Main & Rod Bearing Measurement Chart
• VW Engine Frequently Asked Questions
• Engine Tin: What is it and where does it go?
• VW Engine Identification
• Performance Exhaust Installation
• Exhaust & J-Tube Installation Video
• Carburetor & Intake Manifold Installation Video
• Starter Installation Video
• Alternator Conversion Installation Video
• Oil & Fluid Recommendations

  - Straight 30 weight (SAE30 or HD30) is recommended for colder climates, Straight 40 weight (SAE40 or HD40) is recommended for warmer climates.
  20W50 can be used in a pinch but we recommend non-multigrage oil.
  We do not recommend using synthetic oils in air-cooled VWs as they tend to lead to more oil leaks.
  - Brakes Fluid = We recommend DOT 3 Brake Fluid. DO NOT USE DOT 5.
  - Transmission Oils = Replace with 80w90 weight oil.
  
  Synthetic oils are composed of thinner molecules, and in our experience tend to leak more frequently.

  
  
• Tailpipe Installation

  Tailpipe installation is beyond easy!

  We recommend using new tail pipe clamp kits whenever replacing or adding tailpipes to a new muffler. Tailpipes and installation clamps are each sold separately.
  

  
  
• Valve Adjustment Procedure
• Fuel Injection to Carburetor