2.2.6.3. Second installation of phases of gas distribution
Make sure that the gear wreath of the phase-shifter of the camshaft of inlet valves is reliably recorded (the wreath cannot be turned to the left or to the right).
Fig. 2.71. Fixing of a gear wreath of the phase-shifter of the camshaft
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Install on special adaptation (Mot. 1509) gear wheel (Mot. 1509-01).
Fig. 2.72. Installation of the remote plug: 1 – remote plug; 2 – hairpin
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Put on the remote plug of adaptation (Mot. 1509–01) on a hairpin (fig. 2.72).
Fig. 2.73. Fixing of the top bolt on the remote plug: 1 – top bolt; 2 – remote plug
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Wrap the top bolt, having put the remote plug (Mot. 1509–01) between adaptation and a cover of a head of cylinders (a bolt finally do not tighten) (fig. 2.73).
Tighten a bolt and a nut with a fillet.
Bring adaptation gear wheels (Mot. 1509) to cogged pulleys of camshafts.
Tighten nuts of fastening of cogged pulleys (80 N · м).
Fig. 2.74. Removal of a cap of the phase-shifter of the camshaft of inlet valves: 1 – a bolt and a nut with a fillet; 2 – nuts of fastening of cogged pulleys; 3 – phase-shifter cap
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Remove a cap of the phase-shifter of the camshaft of inlet valves (fig. 2.74).
Turn off a bolt of fastening of the phase-shifter of the camshaft of inlet valves.
Turn off a nut of fastening of the cogged pulley of the camshaft of final valves and adaptation (Mot. 1509).
Remove cogged pulleys of camshafts.
If necessary turn off a hairpin with a nut.
Install adaptation (Mot. 1509) with gear wheels (Mot 1509-01).
Tighten a bolt and a nut with a fillet.
Bring adaptation gear wheels to a contact with cogged pulleys of camshafts.
Fig. 2.75. Tightening of hairpins of fastening of cogged pulleys: 1 – a nut with a fillet; 2 – hairpins of fastening of cogged pulleys
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Tighten hairpins of fastening of cogged pulleys (80 N · l) (fig. 2.75).
Turn off nuts of fastening of cogged pulleys of camshafts.
Remove adaptation (Mot. 1509) and cogged pulleys of camshafts.
Install previously fat-free cogged pulleys of camshafts, using old nuts.
By means of adaptation (Mot. 799-01) tighten nuts the required moment of 15 N · m.
ATTENTION
When replacing a belt of the drive of the gas-distributing mechanism surely replace a pulley of a bent shaft, bypass and tension rollers and belts of the GRM drive and auxiliary units.
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Establish the grooves displaced in relation to an axis horizontally down, as shown above, having turned camshafts by means of adaptation (Mot. 799-01).
Fig. 2.76. Fixing of end faces of camshafts
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Fix adaptation (Mot. 1496) at end faces of camshafts (fig. 2.76).
Turn off a nut of fastening of the cogged pulley of the camshaft of final valves and a bolt of fastening of a pulley of the phase-shifter of the inlet camshaft.
Turn off nuts of fastening of cogged pulleys of camshafts.
Make sure that the bent shaft is blocked.
Fig. 2.77. Check of blocking of a bent shaft: 1 – groove of a bent shaft; 2 – edges
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The groove of a bent shaft has to be between two edges (fig. 2.77).
Fig. 2.78. Installation of a tension roller: 1 – ledge; 2 – groove
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Establish a tension roller, having arranged its ledge in a groove (fig. 2.78).
Install the cogged pulley of a bent shaft, a belt of the GRM drive and bypass a roller.
Tighten the required moment (50 N · l) a bolt of fastening of a bypass roller.