Verification procedure
Remove the air filter.
Remove the EGR valve and unscrew the camshaft covers.
Remove the spark plug from the first cylinder. Use a puller and a spark plug wrench to do this.
Fig. 2.33. Installing the adapter and indicator
Screw the dial indicator adapter into the spark plug socket until it stops (Fig. 2.33).
Insert the dial indicator with the extension until it stops and press it with the nut.
Rotate the crankshaft in the direction of engine rotation to TDC of the first cylinder. Remember the position of the small hand of the dial indicator.
Fig. 2.34. Position of holes in camshafts
The holes in the camshafts should be positioned as shown in Figure 2.34. If necessary, rotate the crankshaft one more revolution (360°).
Note: If the crankshaft has been turned past TDC by more than 0.01 mm, it should be turned again against the direction of engine rotation by approximately 45°. Finally, bring the crankshaft in the direction of engine rotation to TDC of the first cylinder.
Permissible deviation from TDC of the first cylinder is ±0.01 mm.
Insert the camshaft locking tool into the holes in the camshafts until it stops.
Fig. 2.35. Camshaft locking tool
The locking pins 1 must enter the holes 2. The "TOP" mark 3 must be visible from above (Fig. 2.35).
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If the camshaft lock does not enter the holes in the camshafts all the way, then the cause is incorrect valve timing and it should be adjusted.
The valve timing is normal if the camshaft lock is inserted into the holes until it stops.
Further installation is carried out in reverse order.
Replace the camshaft plug seals and lubricate them with oil before installation.
Install the EGR valve.
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