car GAZ-2705
Checking and adjusting valve thermal clearances
For adjustment you need:
- - disconnect the crankcase ventilation hoses
Cars with ZMZ-4025 and ZMZ-4026 engines are usually equipped with a lever-type clutch with peripheral springs or a reinforced clutch with a diaphragm spring
Replacing the cylinder head gasket of the ZMZ-405, -406 GAZ-2705 engine
The cylinder head gasket is replaced if it is damaged
Adjusting the carbon monoxide (CO) content in the exhaust gases of ZMZ-406
Adjustment is carried out on a warm engine (coolant temperature 80-90 °C) with a working ignition system and nominal gaps between the electrodes of the spark plugs