TM 5-2420-230-24-2
Piston and Rod Assemblies - Installation (0-72)
Section 0 - Engine Disassembly and Assembly - Group 00
Page 0-50
B Series Shop Manual
PISTON PROTRUSION
MEASURING
MEASURED
USE
PART NUMBER
PISTON
PROTRUSION
GRADE
160/175
190/230
A
.024-.028 (.609mm-.711mm)
A
3922571
3922577
A
.020-.024 (.508mm-.609mm)
B
3922572
3922578
A
.016-.020 (.406mm-.508mm)
C
3922573
3922579
B
.028-.032 (.711mm-.813mm)
A
3922571
3922577
B
.024-.028 (.609mm-.711mm)
B
3922572
3922578
B
.020-.024 (.508mm-.609mm)
C
3922573
3922579
C
.032-.036 (.813mm-.914mm)
A
3922571
3922577
C
.028-.032 (.711mm-.813mm)
B
3922572
3922578
C
.024-.028 (.609mm-.711mm)
C
3922573
3922579
The specification for Piston Protrusion is 0.024 to 0.028 inch for emission controlled engines built after 1-1-94.
Piston and Connecting Rod Assemblies -
Installation
Install the bearing shells into both the rod and the cap.
Make sure the tang on the bearing shells is in the slot of
the cap and rod.
Lubricate the rod bearings with a light film of Lubriplate
105 .
L-139
