Valve dimensions (VW Lt 2d)

The valve dimensions are given in Table 3.2 and shown in the figure 3.30. The camshaft markings are shown in the figure 3.31, and also together with the valve timing are given in Table 3.3. The valve seat angles are given in Table 3.4 and shown in the figure 3.32.

Table 3.2. Valve dimensions

Parameters	Inlet valve	Exhaust valve
Diameter "a" of the valve plate, mm	36.00	31.50
Valve stem diameter "b", mm	7.97	7.95
Valve length "c", mm	96.85	96.85
Valve seat angle "α"	45

Table 3.3. Marking of the camshaft and valve timing

Engine code	AGX	AHD	ANJ	ARA, WWE, BBF
1st cylinder (arrow A)	WZ0
2nd cylinder (arrow B)	046/074		074
Between cylinders 4 and 5 (arrow C)	3716	2115	1776	2194
Opening of the intake valve after TDC,*	8.0
Closing of the intake valve after BDC,*	28.0
Exhaust valve opening before TDC*	37.0
Closing of the exhaust valve after TDC, *	10.0

Table 3.4. Valve seat angles

Parameters	Intake valve seat	Exhaust valve seat
Diameter "a", mm	37.201)	33.201)
Diameter "b", mm	34.80	30.40
Width "c", valve seat, mm	2.70	2.05
45°	Valve seat angle
15°	Correction angle

¹⁾maximum outside diameter of the cutter