420SEL (126.035) V8-4.2L (116.965) (1986)
Air Injection Pump: Service and Repair
Plug Connection for air pump electromagnetic clutch (Y33)
Pull off. Lace out wire. On vehicles with auxiliary heater, unscrew bracket for auxiliary heater.
Shaped hoses (1 and 2)
Remove, refit.
V-belt
Slacken and remove.
Air pump (125)
Remove, reinstall by removing mounting screws (3 and 4).
V-belt
Install and tension. For measuring, use special tool 001 589 69 21 00. Adjusting values according to KG scale on measuring device:
New V-belts
30
Used V-belts
20 - 25
Air pump electromagnetic clutch (Y33)
Remove, reinstall. See: Air Injection Pump Clutch/Service and Repair
Special tool
Handling of measuring device see operating instructions or repair instructions.
Special Tool