A4 Quattro Wagon L4-1.8L Turbo (ATW) (2000)
Valve: Service and Repair
Valvetrain, servicing
Note:
^
Cylinder heads with small cracks between the valve seats that are less than 0.3 mm (0.012 inch) wide and/or between one valve seat and only the
first 4 threads of the spark: plug thread, can continue to be used without reduced service life.
^
Always replace gaskets, seals and 0-rings.
CAUTION!
^
After installing the camshafts, the engine must not be started for approximately 30 minutes. The hydraulic valve lifters have to settle (otherwise
valves will strike the pistons).
^
After installing the valvetrain and lifters, carefully rotate the crankshaft by hand at least 2 full revolutions before starting to be sure that valves do
not strike the pistons.
1 - Bolt
^
65 Nm (48 ft. lbs.)
^
Use 3036 retainer when loosening or tightening
2 - Camshaft gear
^
For exhaust camshaft
^
Verify correct installation position: thin rib of camshaft gear points forward and TDC Cyl. 1 marking is visible from front
3 - Oil seal
^
For exhaust camshaft