Using a 4 mm drill to check the correct installation of the camshaft
Piston top dead center is the point through which each piston passes as the crankshaft rotates. Each piston reaches TDC at the end of the compression stroke, then again at the end of the exhaust stroke. In order to install the engine timing mechanism, the TDC of the piston of the first cylinder is used.
The location of the alignment marks on the engine when the piston of the first cylinder is set to top dead center
A - placement of curved rods (1) in mounting holes
B - the mark on the crankshaft pulley is aligned with the side face of the bracket, crankshaft angle sensor
Removing the crankcase ventilation hose from the cylinder head cover on models with a CIS fuel injection system
1. Mark the position of the cylinder 1 high voltage wire terminal on the distributor cap.
2. Remove the cylinder head cover.
3. For the crankshaft pulley bolt, turn the engine crankshaft clockwise until the following marks are aligned with the pointers (see fig. The location of the alignment marks on the engine when the piston of the first cylinder is set to top dead center, Removing the crankcase ventilation hose from the cylinder head cover on models with a CIS fuel injection system):
a - the mark on the camshaft pulley must be aligned with the side edge of the bracket for the crankshaft angle sensor;
b - mounting holes in the front flanges of the camshafts must be located outside and at the level of the upper plane of the cylinder head;
c - the ignition distributor rotor must be aligned with the high-voltage wire terminal of the first cylinder.
4. After combining all the marks, the piston of the first cylinder is at top dead center on the compression stroke.