TM 5-2420-230-24-2
Section 1 - Cylinder Block - Group 1
Piston Pin - Inspection (1-27)
B Series Shop Manual
Page 1-43
Measure the piston skirt diameter as illustrated.
Diameter
mm
in
101.823
MIN
[4.0088]
101.887
MAX
[4.0113]
Use a new piston ring to measure the clearance in the ring
groove.
Ring Clearance
mm
in
Top
No Check Needed
(Turbocharged)
(Naturally
0.075
MIN
[0.003]
Aspirated)
0.150
MAX
[0.006]
Intermediate
0.075
MIN
[0.003]
0.150
MAX
[0.006]
Oil
0.040
MIN
[0.002]
Control
0.130
MAX
[0.005]
Measure the pin bore.
Diameter
mm
in
40.006
MIN
[1.5750]
40.025
MAX
[1.5758]
Piston Pin - Inspection (1-27)
Inspect the piston pin for nicks, gouges and excessive
wear.
Measure the pin diameter.
Diameter
mm
in
39.990
MIN
[1.5744]
40.003
MAX
[1.5749]
L-246