Intake pressure check

The last time I installed turbochargers I did a pressure check of the intake piping while the engine was out of the car.

Audi B5 S4 intake pressure testThis time I wanted to get the motor into the car and decided to wait until it was back in place to do the pressure check – bad decision.  Turned out that there was a small leak down by the passenger turbocharger.  I was able to get down to the coupler hose that’s on the compressor outlet to tighten the hose clamps, but that didn’t help with the leak.  Sensing that something unusual is up I am now taking the motor back out to see what is going on.

Turbo Blanket Clearance

After re-installing the motor I was concerned that the turbo blanket might be pushed onto the wastegate actuator arm due to the tight spacing on the driver’s side.  I hooked up an air compressor to the wastegate activation lines and ran some pressure through them to check that the arm would still move as needed, it did.

turbo_blanket_clearance

Audi B5 S4 Information and Testing