Compressor Spring Force Specifications
Load Required to Com-
press Spring to Measure-
ment Length
Spring
Part Number Spring Use
Approx. Free
Length
mm [inch]
Number
of
Coils
Wire
Diameter
mm [inch]
Measurement
Length
mm [inch]
Minimum
kg [lb.]
Maximum
kg [lb]
128080 Exhaust Valve 17.02 [0.670] 3.0 2.03 [0.080] 7.11 [0.280] 3.6 [8.55] 4.7 [10.35]
190334 Intake Valve 12.70 [0.500] 2.8 1.58 [0.062] 7.11 [0.280] 0.35 [0.65] 0.5 [1.10]
150631 Unloading Valve
(naturally aspirated)
center unloading
valve - twin
41.91 [1.650] 11.5 2.03 [0.080] 24.89 [0.980] 13.6 [32.00] 17.2 [38.00]
3023101 Unloading Valve
(all turbocharged
engines)
41.91 [1.650] 10.8 2.89 [0.065] 24.89 [0.980] 5.9 [13.00] 7.7 [17.00]
Section 4 - Compressed Air System Compressed Air System Specifications
N14 Page 4-7