Adjusting the Basic Pressure

Adjusting the basic pressure of the charging pressure regulator

Working on the basis of the basic pressure reading obtained, adjust as follows:




1. Remove the anti-tamper seal and circlip.

2. Loosen the end piece locknut.

3. Unhook the lever from the control arm stud.

- Insufficient charging pressure: rotate the end clockwise (shorten the lever).

- Excessive charging pressure: rotate the end counter-clockwise ) lengthen the lever).

4. Refit the lever onto the control arm stud, and tighten the locknut.

5. Refit the circlip.

6. Check the basic pressure setting on the road. See 'Checking of the basic setting of the charging pressure regulator on the road'. (If the basic pressure setting does not respond to adjustment, see the Fault-tracing chart).

7. If the basic pressure setting is correct, fit an anti-tamper seal to the control arm stud.

8. Reconnect the cables to the solenoid or remove the APC test loom.

9. Remove the pressure gauge.