Adjusting Timing
- Crankshaft secured by Crankshaft Locking Pin T40069
- Camshafts secured by Camshaft Clamp T40070
- Chain tensioner is tensioned
-- Place the chain sprockets -2 and 3- in the timing chain as shown and then mount them on the camshafts. Install the new bolts -1 and 4- hand-tight.
Chain gears must still be able to be rotated, however they must not tilt.
-- Push the piston in and pull the Locking Pin T03006 out to release the tension on the chain tensioner.
-- Mount the Counterhold - Kit - Multiple Use T10172 on the exhaust camshaft chain sprocket -4-.
-- Push the Counterhold - Kit - Multiple Use T10172 in -direction of arrow- to pretension the timing chain.
-- Tighten the intake camshaft bolt -2- first and then the exhaust camshaft bolt -3- to 60 Nm.
Then tighten bolts -2 and 3- 90° (1 /4 rotation) further.
-- Remove the Camshaft Clamp T40070.
-- Remove the Crankshaft Locking Pin T40069 for securing the crankshaft.
-- Turn the crankshaft 2 turns in direction of engine rotation and lock it into place. Refer to CRANKSHAFT, LOCKING TO CHECK/ADJUST VALVE TIMING . The crankshaft is locked to check/adjust the valve timing.
-- Checking valve timing. Refer to VALVE TIMING, CHECKING .
If valve timing is not correct:
-- Loosen the camshaft chain sprocket again and adjust the valve timing again (replace the camshaft bolts).
The rest of the installation follows the reverse of the removal procedures. Note the following:
-- Remove the Crankshaft Locking Pin T40069 from the back of the cylinder block and install the bolt.
-- Fill the coolant. Refer to COOLANT, DRAINING AND FILLING .