500SL (129.067) V8-5.0L (119.972) (1993)
1
Hydraulic valve lifter
2
Thrust piece
3
Compression spring
4
Oil supply groove (circumferential)
5
Oil supply hole
6
Oil return flow check valve
7
Piston with check valve
8
Retaining ring
9
Oil accumulator
10
Oil supply space
11
Working chamber
a
Diameter 35 mm
b
Height 26.5 mm
c
Minimum valve lift: 2.3 mm
Camshafts
The hollow chilled cast iron camshafts are supported by 5 bearings each in the cylinder head and guided axially at the second bearing.
The positioning hole in the camshaft flange of all 4 camshafts is located for a crankshaft position of 45° before compression TDC of cylinder no. 1,
with the camshaft adjuster in the retarded position.
Positioning is attained with 4 locator pins (1) 119 589 00 15 00 (1 set) using the hole in the no. 1 camshaft bearing cap.
Valve timing