Doosan GC25P-3 User Manual

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LP Engine G430(3.0L) Base Engine Service Procedure
Piston, Connecting Rod and
Bearing Installation
Tools Required
• J 5239 Guide Set
• J 8037 Piston Ring Compressor
Important
• The piston and cylinder bore have been measured
and the bore has been sized for the proper
clearance. Install the piston and connecting rod
assembly into the proper cylinder bore.
• The piston alignment mark MUST face the front of
the engine block.
1. Lubricate the following components with clean
engine oil:
• The piston.
• The piston rings.
• The cylinder bore.
• The bearing surfaces.
2. Install the connecting rod bearing into the
connecting rod and bearing cap.
3. Install the J 5239 onto the connecting rod.
4. Install the J 8037 or equivalent onto the piston and
compress the piston rings.
5. Install the piston assembly into its matched bore
with the stamped arrow facing forward.
6. Use the J 8037 and the J 5239 nd lightly tap the top
of the piston with a wooden hammer handle.
• Hold the J 8037 firmly against the engine block until
all of the piston rings enter the cylinder bore.
• Use the J 5239 in order to guide the connecting rod
onto the crankshaft journal.
7. Remove the J 5239.
VE046-3L
VE105-3L
VE124-3L

Doosan GC25P-3 Specifications

General

Brand	Doosan
Model	GC25P-3
Category	Engine
Language	English