911 Carrera 2 Targa F6-3600cc 3.6L SOHC (1992)
3. Screw high-pressure hose No.5 with flange No.6 to power pump (required seal: 14 x 18).
4. Fit high-pressure hose No. 2a or 2b (1.5 m long) to pressure line, using the banjo bolt and adapter No.1.
Required seals: 2 x 14 x 18 and 1 x 18 x 22 or 1 x 16 x 20.
5. Install pressure gauge between high-pressure hoses and place on a support (e.g. tool box).
A helper is required to read off the pressures.
Make sure the hose section of the pressure line is not kinked. In addition, the tester hose must be kept at a safe distance from the belts and pulleys.
Note: Use reducer No.4 for the older pressure gauge model (No. 3b) and fit high-pressure hose No.5 to connection side IV of pressure gauge.
6. Open shutoff valve at pressure gauge (lever position I), top up reservoir and bleed steering system.
Checking Supply Pressure of Power Pump
1. With the engine at idle, close shutoff valve (lever position II) and read off pressure.
Specification: 100 to 110 bar. Open shutoff valve again immediately.
Note: To avoid wear, do not leave the shutoff valve closed for more than 5 seconds. On presure gauge type 3a, select lever position
"II right or II left", depending on how the high-pressure hoses have been connected to the pressure gauge.
No reading is obtained if lever position II is incorrect.
2. If the specified value is not reached or if it is exceeded, the power pump must be replaced.
Checking System Pressure
1. Run engine at idle. The shutoff valve must be open (lever position I).
2. Turn steering wheel to left-hand and right-hand full lock and read off fluid pressure on pressure gauge.
Specification: 100 - 110 bar.
Requirements: Supply pressure of power pump must be o.k.
It is not sufficient, however, if only the steering lock limiter becomes effective. The return force of the rotary piston valve or rotary slide valve must also
be overcome. Steering wheel force is aprox. 100 N /10 kp.
3. If the specified value is not reached on the left-hand or right-hand side (excessive drain flow), replace the steering gear assembly.
