Vacuum Regulator (2-Port)

1. Remove vacuum line from the barbed output port (Fig. 1), and install a vacuum gauge.

2. With manifold vacuum at the input port and the engine at idle, the vacuum gauge should read between 35.7-45.9 kPa (10.5-13.5 in-Hg).

3. If the vacuum gauge reading is not within the specification, replace the regulator as required.



NOTE: The two port vacuum regulator is commonly attached to a 90-cubic inch vacuum reservoir.