Remove the EGR valve.
Pic. 2.36. Installing the bolt in the crankshaft pulley
To rotate the crankshaft, insert the support sleeve, the crankshaft pulley 2 and the crankshaft bolt 3, then screw in the bolt (use counterholder 3415) (pic. 2.36).
Remove the spark plug of the first cylinder. To do this, use a puller and a candle wrench.
Pic. 2.33. Installing the adapter and indicator
Screw the dial gauge adapter into the spark plug socket as far as it will go (pic. 2.33).
Insert the dial indicator with the extension until it stops and press it with the nut.
Scroll the crankshaft in the direction of engine rotation to the TDC of the first cylinder. Note the position of the small hand on the dial indicator.
Then turn the crankshaft against the direction of engine rotation back by 45°.
Press the tensioner bar 1 in the direction of the arrow and fix the piston with the locking pin (pic. 2.36).
Mark with a felt-tip pen the direction of the timing chain 3.
Note: The center bolt of the phase shifter 2 has a left-hand thread.
Pic. 2.37. Removing the phase shifter
Remove bolts 2 and 4 and remove phase shifter 1 from timing chain 3 (pic. 2.37). Use counterhold to hold.
Reattach phase shifter 1.
Replace bolts 2 and 4 and tighten bolt 2 to 40 Nm and bolt 4 to 50 Nm.
Rotate the intake and exhaust camshafts until the camshaft retainer is fully seated in the holes in the camshafts.
Pic. 2.35. Camshaft retainer
Locking pins 1 must go into holes 2. Mark «TOP» should be visible from above (pic. 2.35).
Note: The camshafts must not be axially displaced during rotation.
Pic. 2.38. Retainer mount
To attach the retainer, screw in the M6 bolt by hand; without tightening it (pic. 2.38).
Loosen the camshaft sprocket bolts. To do this, be sure to use a counter support.
Note: The camshaft retainer must not be used as a counterhold.
Remove one camshaft sprocket.
Place the timing chain, observing the direction of travel, on the camshaft sprockets and reattach the removed sprocket.
Screw in the camshaft bolts until the sprockets still turn on the camshafts.
Tension the timing chain by pulling out the lock pin.
Turn the crankshaft in the direction of engine rotation to the TDC of the first cylinder. Permissible deviation from the TDC of the first cylinder is±0.01 mm.
Note: If the crankshaft has been rotated beyond TDC by more than 0.01 mm, it should be turned again against the direction of engine rotation by about 45°. Finally, bring the crankshaft in the direction of engine rotation to the TDC of the first cylinder.
Hold camshaft sprockets 1 and 5 in this position with a counterhold and tighten bolts 2 (left hand thread) with tightening torque 40 Nm and 4 to 50 Nm (pic. 2.37).
Note: When tightening the camshaft bolts, the crankshaft must not turn and the timing chain 3 must remain taut on both sides.
Remove the camshaft retainer.
Rotate the crankshaft in the direction of engine rotation two revolutions at TDC of the first cylinder. Permissible deviation from the TDC of the first cylinder is±0.01 mm.
Insert the camshaft retainer into the holes in the camshafts until it stops.
If the camshaft retainer is not inserted
Repeat the adjustment.
If the camshaft retainer is inserted
Remove the camshaft retainer, hold the camshaft sprockets with a counterholder and screw in the bolts 2 (left hand thread) and 4 with a regular key for 1/4 turn (90°). (pic. 2.37).
Note: The center bolt of the phase shifter 2 has a left-hand thread.
Note: The sprockets must not rotate on the camshafts when tightening the bolts.
Rotate the crankshaft again in the direction of engine rotation by two revolutions at TDC of the first cylinder. Permissible deviation from the TDC of the first cylinder is±0.01 mm.
Insert the camshaft retainer into the holes in the camshafts until it stops.
If the camshaft lock cannot be inserted, repeat the adjustment.
Further installation is carried out in the reverse order.
Install the timing cover.
Install poly V-belt.
Replace the O-rings of the camshaft plugs and lubricate them with oil before installation.
Install the EGR valve.
Visitor comments