Valve Timing, Adjusting: Notes
Special tools and workshop equipment required
- Torque Wrench 5-50 Nm V.A.G 1331
- Torque Wrench 40-200 Nm V.A.G 1332
- Locking Pin T03006
- Polydrive Bit Drive Socket T10035
- Counterhold - Multiple Use T10172
- Camshaft Clamp T40070
- Two M8 x 16 bolts
Modify Counterhold T10172
-- Remove the Adapter T10172/1 and install the M8 x 16 bolts -A-.
-- Follow repair instructions. Refer to GENERAL INFORMATION .
Securing Camshafts if Valve Timing is Correct
-- Remove the timing chain cover. Refer to TIMING CHAIN COVER .
-- Remove the cylinder head cover. Refer to CYLINDER HEAD COVER .
-- Lock the crankshaft in place to adjust the valve timing. Refer to CRANKSHAFT, LOCKING TO CHECK/ADJUST VALVE TIMING .
-- Attach the Camshaft Clamp T40070 to the camshafts as shown and tighten the bolts to 20 Nm.
If the bolts are difficult to install, position an 18 mm or 19 mm open-end wrench -A- at the opening on the exhaust camshaft and rotate the camshaft slightly in the -direction of the arrow- to remove any play in the chain drive.
-- Relieve the tension on the timing chain. To do this, insert an appropriate screwdriver between the piston of the chain tensioner and the tensioning rail and press in -direction of arrow-.
-- Secure the fully pushed-in piston with Locking Pin T03006. The locking pin must be inserted all the way.
Securing Camshafts if Valve Timing is Not Correct
-- Remove the timing chain cover. Refer to TIMING CHAIN COVER .
-- Turn the crankshaft to cylinder 5 Top Dead Center (TDC) (refer to CRANKSHAFT, LOCKING TO CHECK/ADJUST VALVE TIMING ) but do not remove the crankshaft with Locking Pin T40069.
-- Turn the crankshaft so the Camshaft Locating Tool T40070 can be attached easily to the camshafts, as shown.
-- Tighten the bolts on the Camshaft Clamp T40070 to 20 Nm.
Remove Camshaft Chain Sprockets
-- Release the tension on the timing chain. To do this, insert an appropriate screwdriver between the piston of the chain tensioner and the tensioning rail and press in -direction of arrow-.
-- Secure the fully pushed-in piston with Locking Pin T03006. The locking pin must be inserted all the way.
-- Remove the bolts -1 and 4- with Multipoint Socket T10035 and then remove the chain sprockets -2 and 3-.
If necessary, chain sprocket -3- must be pressed off lightly using a screwdriver.