7.8. Analysis of a head of the block of cylinders

4-cylinder petrol engines


Compression of a valvate spring special adaptation

Removal of crackers from a valve end face

Removal of the top plate of a spring

Removal of a valvate spring

Removal of a maslootrazhatelny cap

Removal of the lower nest of a spring

Extraction of the valve via the combustion chamber

Storage of elements of one valve in a plastic bag

PERFORMANCE ORDER
1. Remove a head of the block of cylinders.
2. Remove inlet and final collectors.
3. Remove the mechanism of the drive of valves, hydraulic pushers and the camshaft.
4. Unscrew spark plugs.
5. Unscrew a thermostat casing from a head of the block of cylinders.
6. Using the device for compression of a spring of the valve, squeeze each spring and remove crackers from a valve end face. Remove the device for compression of a spring and take a plate springs and a spring (see rice. Compression of a valvate spring special adaptation, Removal of crackers from a valve end face, Removal of the top plate of a spring, Removal of a valvate spring).
7. Being careful, flat-nose pliers remove a telny cap from a rod of the valve of a maslootrazh (see rice. Removal of a maslootrazhatelny cap).
8. When the spring of the valve is compressed and the cup of a spring is not removed from crackers, it is necessary to strike with the hammer through wooden whetstone a spring cup that will lead to release of crackers.
9. Take the valve via the combustion chamber. Each valve you store in a separate plastic bag together with a plate springs, a spring, a nest of a spring and crackers for their further installation on the places (see rice. Extraction of the valve via the combustion chamber, Storage of elements of one valve in a plastic bag).