Engine timing, valve train,  M110

Checking valve springs

 

 

05—260 Checking valve springs

 

Valve
springs

 

 

 

 

 

 

 

 

 

Part
No.
Color code
Outside dia. mm
Wire gage dia. mm
Relaxed length mm
Spring mm
force at New N
pretensioned length Limit N
Inner
130
053 00 22
yellow/brown or violet/brown
22-22.4
2.5
45
21.5
235
224-246

 

Outer (optional)
110 053 02 20 yellow
110 053 01 20 violet/red yellow/red
33.8-34.1 4.6 34.2               4.75
49.5 49
30.5
863
843-902

 

Checking
m110 - 0171-1.jpg
ROS/638S
1    Check valve springs with a valve spring tester or a spring testing scale.
2    Check spring force at specified length.
3    If value is less than limit, replace valve springs.
Note: Prior to installation, check wire surface of used valve springs for corrosion.

 

05.2-260/1 F3