600SEL (140.057) V12-6.0L (120.980) (1993)
Camshaft: Technical Service Bulletins
Engine - Camshaft Timing Adjuster Reassembly
Group: 05
Number: 290
Date: January 1993
WORK INSTRUCTIONS
Engines 104, 119, 120
Reassembly Of Camshaft Timing Adjuster Using Shop Made Installation Tool
Parts
5
Shop-made tool
6
Nut (M20 X 1.5)
12
Cover
13
Camshaft sprocket
14
Adjustment piston
14a Spiral cone spring
22
Intake camshaft
These Work Instructions describe the reassembly of the camshaft timing adjuster which requires the use of a shop-made special tool described in Special
Tools.
Procedure
1. Disassemble and remove camshaft timing adjuster (refer to Engines 104 and 119 Job No. 05-217. Engine 120 refer to Engine 104, job no. 05-217).
Figure 1
Figure 2
2. Mount spiral cone spring (14a, Figure 1) and adjustment piston (14, Figure 1) onto flange (Figure 2).
Note:
Match position of large spline on adjustment piston to flange.
3. Install shop made special tool (5, Figure 1) behind holding nut (6, Figure 1) turning nut until tool (washer) is fully seated. Install nut with thick side
positioned towards camshaft.
4. Install camshaft sprocket (13, Figure 1) over adjustment piston (14, Figure 1). Match position of splines.