Vacuum Amplifier
- Connect vacuum tester (116 589 25 21 00) with "Y" fitting to connection "A" and read vacuum value at idle speed. Value for man. trans. is approx. 9 in. Hg. Value for auto. trans. is approx. 10 in. Hg.
- If vacuum is above or below specified value, adjust vacuum. To adjust vacuum, pull off dust cap from vacuum amplifier and turn adjusting screw with a 4 mm socket wrench until specified value is obtained. If vacuum value is not OK, go to step 3).
- Check supply vacuum at connection "B". See Fig 1 . Replace vacuum amplifier, if necessary. Check vacuum lines.