Checking Distributor In

Porsche Turbo Ignition Unit

Turning distributor shaft sends an alternating current signal to the CDI control unit. This alternating current signal which increases with engine speed, triggers the control unit to release ignition spark. Distributor operation can be checked by measuring alternating current. Never make changes on soft iron teeth of rotor or stator. Disconnect 2-pole plug connector at wire from distributor to engine harness. 2 Connect a multipurpose tester to the plug and adjust it to measure AC voltage. If...

Delayed Ignition Cutoff

Porsche 930 Fuel Line Layout

A time delay relay for ignition cutoff will be installed in 19 77 Turbo Carrera Model. An open circuit in diode could prevent energizing of alternator charge indicator light does not come on while turning on ignition . lt 4L lt . Le lt .f A break in diode in blocking direction will be noticed by extended engine run-on after turning it off. When stopping engine, only fuel pumps are turned off at first. After a time delay of 3 to 5 seconds power supply for GDI control unit is broken...

Turbo Carrera Repair Manual

This repair manual describes all of the important operations for which special instructions are required to assure proper completions. This manual is essential for the shop foremen and mechanics, who need this information to keep the vehicles in a safe operating condition. The basic safety rules, of course, also apply to repairs on vehicles without exception. The Turbo Carrera Repair Manual only describes repair operations which differ from those for 911 models. Refer to the 911 Repair Manual...