Piston and Connecting Rod Disassemble for Daewoo Lacetti (Global Delta) 2009

1. Remove the piston with connection rod. Refer to Piston, Connecting Rod, and Bearing Removal.

Note: Note installation position of the piston in respect of the connection rod.

2. Detach the piston from the connection rod.




•	Remove the retainer (1) from the piston eye.

•	Do not damage the bore.

•	Press the piston pin out of the piston.




3. Remove the piston rings using piston ring pliers (1).

Remove oil carbon from the groove with a split piston ring, filed to a wedge-shape.

4. Measure the piston ring gap.

•	Tension the piston ring in the cylinder and measure the gap with a feeler gage.





•	Permissible ring gap:

-	Rectangular compression ring (1): 0.20-0.40 mm (0.007-0.015 in)

-	Tapered compression ring (2): 0.40-0.60 mm (0.015-0.023 in)

-	Oil scraper ring (3): 0.25-0.75 mm (0.009-0.029 in)




5. Check piston ring vertical play with a feeler gage (1) in the piston ring groove.

Permissible vertical play:





•	Rectangular compression ring (1): 0.04-0.08 mm (0.001-0.003 in)

•	Tapered compression ring (2): 0.03-0.07 mm (0.001-0.002 in)

•	Oil scraper ring (3): 0.03-0.13 mm (0.001-0.005 in).