Sable car GAZ-2752, 2217, 2310>> ZMZ-4063 engine>> Replacement of camshafts

Replacement of camshafts

Scheme of installation and branding of covers of camshafts

I–forward cover;
II – a shaft of inlet valves;

III – a shaft of final valves.


 PERFORMANCE ORDER

We remove tips together with high-voltage wires from spark plugs.

We remove ignition coils (see. Check and replacement of coils of ignition) or we leave on a cover, having disconnected from them low-voltage wires.
We disconnect from the carburetor cables of a drive throttle and air a zaslonok (see. Carburetor removal).
We remove a lattice and the top panel of facing of a radiator (see. Removal of a lattice of facing of a radiator and Removal of the top panel of facing of a radiator).
We disconnect tips of wires from sensors of temperature and pressure of oil (see. Replacement of sensors of the index of temperature, Replacement of sensors of pressure of oil), we unbend brackets of fastening of wires …

… also we remove wires from the engine.

We weaken a collar and we disconnect an additional hose of system of ventilation of a case.

Key «on 12» we turn on eight bolts of fastening of a cover of a head of the block.

We uncover.

Turning a cranked shaft clockwise, we expose it in the provision VMT of a step of compression of the first cylinder...

... thus risk on a pulley of a cranked shaft should coincide with a ledge on a forward cover of the block, …

… and labels on asterisks of camshafts should be developed to the opposite sides and be at level of the top edge of a head of the block.

During further work do not turn a cranked shaft.

We remove the fuel pump (see. Removal and dismantling of the fuel pump) and, without disconnecting hoses, we take him aside (it is possible to leave the fuel pump on a cover).

Key «on 12» we turn on four bolts (two bottom — short).

We remove a forward cover of a head of the block of cylinders...

... and sealing laying.

Six-sided key «on 6» we turn on two screws …

… also we remove the top uspokoitel of the top chain.

By the same key it is turned on two screws of fastening of the bottom uspokoitel of the top chain.

We weaken a chain tension on a site about the bottom uspokoitel, having turned a shaft of final valves clockwise a key «on 17» for a bolt of fastening of an asterisk (or a key «on 30» for a tetrahedron executed on a shaft).

We remove an uspokoitel.

Holding a shaft of final valves a key «on 30», a key «on 17» we turn on a bolt of fastening of an asterisk.

We remove an asterisk from a shaft of final valves.

Similarly we turn on a bolt of fastening of an asterisk of a shaft of inlet valves.

We remove the clown of a drive of the fuel pump …

… and asterisk of a shaft of inlet valves.

Head «on 12» we turn on four bolts of fastening of a forward cover of camshafts.

We remove a forward cover …

… and plastic loose leaves of restriction of axial moving of camshafts.

Head «on 12» consistently on a half of turn we weaken an inhaling of bolts of fastening of covers of a camshaft until springs of valves will not cease to draw in shaft.

Finally we turn on bolts and we remove covers.

We remove a camshaft.

Similarly we remove the second camshaft.
Before installation of camshafts we grease with engine oil their basic necks, cams, and also beds in a head of the block and covers.

Shaft of final valves we establish a pin to the right (looking in front), and inlet — a pin up. Thus shaft are in steady situation (for descriptive reasons the hose of a radiator is removed).

Camshafts of inlet and final shaft differ an arrangement of pins in openings of their flanges.

Each cover we establish on the place according to the serial number which has been beaten out on it.

Cover we focus so that the figure beaten out on it was turned to the outer side of a head of the block of cylinders.

Bolts of fastening of covers it is tightened by the moment 1,9–2,3 кгс.м, then …

… we turn a shaft of inlet valves so that its pin settled down opposite to the top edge of a head of the block.

We establish on asterisk shaft with the chain put on them, since a camshaft of final valves.

At the tense branch of a chain from the bottom uspokoitel the label on an asterisk should be located opposite to the top edge of a head of the block.

We establish the bottom uspokoitel on a place and we put the second asterisk.
Further assembly we carry out in sequence, return dismantling.

After installation of a gidronatyazhitel (see. Removal and installation of gidronatyazhitel) we check coincidence of all labels on a pulley of a cranked shaft and asterisks (see above). Incorrectly established asterisk we remove and, having rearranged it on one link of a chain, we establish anew.