Exhaust

Procedures for removing and installing the exhaust system on normally-aspirated 944s and the crossover pipe system on 944 Turbos, including manifold removal and torque specifications.

Detailed procedure for removing and installing the 944 Turbo wastegate, including mounting arrangement description, required tool modifications, and torque specifications.

How to fabricate and install shims between the wastegate diaphragm and valve body to increase wastegate spring preload and raise maximum boost pressure on the 944 Turbo.

How to perform a low-boost pressure test to determine if the boost problem is mechanical or electronic, and how to bench-test the wastegate diaphragm with a pressure pump to verify opening pressure and sealing.