Check on the car
Type 1
Note: Removal and installation of measuring instruments should only be carried out with the engine stopped.
1. Preparation
Install vacuum gauges in the gap of the throttle actuator hoses (on the intake manifold).
2. Verification (low altitude operation)
Note: Low altitudes include altitudes up to 800 m above sea level (pressure over 700 mm Hg).
a) Start the engine at idle speed: the drive rod should retract under the action of vacuum on one of the drive diaphragms.
b) Press the accelerator pedal - the vacuum on the drive diaphragm will disappear, and the drive rod should extend.
c) Turn off the ignition; a vacuum should appear on both diaphragms and the drive rod should retract.
d) Gradually the drive rod should return to its original position.
3. Verification (high altitude operation).
The test must be carried out at an altitude of more than 800 m above sea level and a pressure below 690 mm Hg.
Under these conditions, the diaphragm rod should not move under any engine operating mode, and therefore, a vacuum should not occur on the diaphragm.
Type 2
1. Preparation.
Install a vacuum gauge into the gap in the diaphragm hose of the damper drive.
2. Checking the work.
a) Start the engine: the vacuum on the diaphragm should be zero.
This material is taken from a resource (www.ToyotaMAN.ru)
b) Stop the engine: the vacuum on the diaphragm should move the drive rod and, over time, the rod should return to its original position.
