Engine: Technical Service Bulletins
- Customer Interest
- By Symptom
- All Technical Service Bulletins
- Engine - Approved Engine Oil Specification
- Engine - Approved Porsche A40 Engine Oils
- VIN, Certification, & Emission Label - Availability
- VIN, Certification & Emission Labels - Availability
- VIN Plate, Certification & Emission Label - Availability
- Engine Crankcase - Standard Replacement Parts
- Valve Seat - Depth Checking
- Valve Guide - Checking Procedure
- Oil Filters - Unnecessary Perforation of When Removing
- Crankcase Mounting Bolt Sealing Rings - New Arrangement
- Engine - Aluminum Air Guide Plate Cracked, Rivets Loose
- Tools - Auto Scopemeter & Engine Analyzer
- Cooling Fan - Noisy
- Valve Seat - Checking Depth
- Spark Plug & Connector - Removal
- Spark Plug - Replacement Intervals
- Spark Plugs - Install With Threads Clean and Dry
- Cylinder Head - Correct Torque Specification
- Cylinder Heads - Refacing Information
- Tools - Refacing Cylinder Heads Using Tool (9526)
- Camshaft Housing and Manifold - Revised Sealing
- Ignition Distributor - Install Ventilation When Serviced
- Ignition Distributor - Revision and Marking
- Oil Cooler Fan - Updated Ballast Resistor
- Ignition Cables - Chafe on Ground Strap, and MIL ON
- Crankshaft Pulley - Excessive Run-Out After Installation
- Engine Lubrication - Oils That Minimize Carbon Build-Up
- Engine - Approved Engine Oils
- Engine - Porsche Approved Oils
- V-Belt - Correct Tensioning Procedures and Tool
- Oil Drain Plug - Revised Torque Specification
- Engine - Cleaning of Oil Circuits
- Cylinder Head Studs - Installation Precautions
- Engine - Approved Engine Oils Overview