Disassembly and assembly

Fracture split connecting rods should not be left
without the connecting rod caps installed.
i05279089
Pistons and Connecting Rods
- Disassemble
Disassembly Procedure
Table 63
Required Tools
Tool Part Number
Part Description Qty
A
-
Retaining Ring Pliers
1
B
-
Ring Expander
1
Start By:
a. Remove the pistons and the connecting rods.
Refer to Disassembly and Assembly, “Piston
and Connecting Rods - Remove” for the
correct procedure.
Note: Make a temporary mark on the components of
the piston and connecting rod assembly. Making
temporary marks will ensure that the components of
each piston and connecting rod assembly can be
reinstalled in the original location. Mark the underside
of the piston on the front pin boss. Do not
interchange components.
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened
component life.
Illustration 292 g03001216
1. Remove lower bearing shell (10) from connecting
rod cap (11). Remove upper bearing shell (9) from
connecting rod (7). Keep the bearing shells
together.
2. Place the piston and connecting rod assembly on a
suitable surface with the connecting rod upward.
Use Tooling (A) in order to remove circlips (5).
3. Remove piston pin (6) from bushing (8) in
connecting rod (7). Remove connecting rod (7 )
from piston (4).
Note: If the piston pin cannot be removed by hand,
heat the piston to a temperature of 45 ± 5 °C
(113 ± 9 °F). Do not use a torch to heat the piston.
Note the orientation of connecting rod (7) and piston
(4).
4. Place the piston on a suitable surface with the
crown upward. Use Tooling (B) in order to remove
compression ring (1), compression ring (2), and oil
control ring (3) from piston (4).
Note: Make temporary identification marks to Identify
the position and orientation of compression ring (1),
compression ring (2), and oil control ring (3).
5. Inspect the connecting rod for wear and damage. If
necessary, replace connecting rod (7) .
160 UENR0624-03
Disassembly and Assembly Section
This document has been printed from SPI2. NOT FOR RESALE