Caterpillar 6D16 Engine Piston and Connecting Rod Removal Guide

This instruction show you guide on how to remove piston and connecting road for Caterpillar 6D16 gnine

Procedures:
Rocker bushing and rocker shaft
If the clearance exceeds the specified limit, replace the defective part(s).

Caterpillar adapter 478-0235

Connecting rod bushing
[Removal]
Apply the Connecting Rod Bushing Puller to the connecting rod bushing 3. Using a press, apply pressure of approximately 49 kN (5,000 kgf) [11,015 lbf] such that the bushing is pressed out of the connecting rod 4.

[Installation]
• Align oil hole A in the connecting rod bushing 3 with oil hole B in the connecting rod 4.
• Apply the Connecting Rod Bushing Puller to the connecting rod bushing 3. Using a press, apply pressure of approximately 49 kN (5,000 kgf) [11,015 lbf] such that the bushing is pressed into the connecting rod 4 from the chamfered side C.
NOTE
After installing the connecting rod bushing 3, insert the piston pin 2 and check that it turns smoothly and without play.

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Piston pin, connecting rod, and piston
[Removal]
• Tap out the piston pin 2 using a rod and hammer.
• If the piston pin 2 is difficult to remove, heat the piston 8 in hot water or using a piston heater.

[Installation]
• Apply engine oil to the piston pin 2. With the connecting rod 4 and piston 8 aligned as illustrated, insert the piston pin to hold these components together.
A: Weight mark
B: Weight mark (A, B, C, D, E, F, G, H, I, V, W, X, Y, Z)
C: Alignment mark for connecting rod cap
: Front mark
• If the piston pin 2 is difficult to insert, heat the piston 4 in hot water or using a piston heater.
CAUTION
• No piston should differ from any other piston by a weight of more than log.
• The connecting rods must all have the same weight mark.
• After inserting the piston pin 2, check that it turns smoothly and without play.
Cat ET 2022A
Piston pin-to-piston clearance
If the clearance exceeds the specified limit, replace the defective part(s).
Connecting rod bend and twist
• Fit the connecting rod bushing 3 and piston 2 in their respective positions of the connecting rod 4.
• Measure the extent of bending A and twisting B in the connecting rod 4.
• If either measurement exceeds the specified limit, replace the connecting rod 4 or rectify it.
C: Connecting rod 4 aligner (measurement device)
NOTE
• Before mounting the connecting rod 4 on the connecting rod aligner C, install the upper and lower connecting rod bearings in their respective positions.
• Measurements must be made with the connecting rod cap mounting nuts tightened to their specified torque.

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