TM 5-2420-230-24-2
B3.9 and B5.9 Series Engines
Camshaft (001-008)
Section 1 - Cylinder Block - Group 01
Page 1-25
Inspect the camshaft gear teeth for pitting; look for cracks
at the root of the teeth.
Measure the valve lobes.
4B Engine Peak of Lobe Diameter
by Camshaft Part No.
Minimum
Minimum
Part No.
Intake
45.400 mm
45.141 mm
3929039
[1.787 in]
[1.777 in]
3925582
45.400 mm
45.141 mm
[1.777 in]
[1.787 in]
3914638
45.400 mm
45.141 mm
[1.777 in]
[1.787 in]
3929885
45.795 mm
44.649 mm
[1.758 in]
[1.803 in]
3929038
45.795 mm
44.166 mm
[1.739 in]
[1.803 in]
3924574
45.795 mm
44.166 mm
[1.803 in]
[1.739 in]
3931281
45.400 mm
44.649 mm
[1.787 in]
[1.758 in]
3930346
45.400 mm
44.649 mm
[1.787 in]
[1.758 in]
L-703