Grand Vitara 2WD V6-2.7L (2006)
4) After installing three rings (1st, 2nd and oil rings), distribute their end gaps as shown in figure.
Cylinders, Pistons and Piston Rings Inspection
Cylinders, Pistons and Piston Rings Inspection
Reference: Pistons, Piston Rings, Connecting Rods and Cylinders Removal and Installation
Reference: Pistons, Piston Rings, Connecting Rods and Cylinders Disassembly and Reassembly
NOTE: Before the following inspection, clean carbon from piston head and ring grooves, using a suitable tool.
Cylinders
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Inspect cylinder walls for scratches, roughness, or ridges which indicate excessive wear. If cylinder bore is very rough or deeply scratched, or
ridged, rebore cylinder and use over size piston.
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Using a cylinder gauge, measure cylinder bore in thrust and axial directions at 2 positions (1, 2) as shown in figure. If any of the following
condition is noted, rebore cylinder.
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Cylinder bore via. exceeds limit.
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Difference of measurements at 2 positions exceeds taper limit.
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Difference between thrust and axial measurements exceeds out-of-round limit.
Cylinder bore
Standard: 88.000 - 88.020 mm (3.4646 - 3.4653 inch)
Limit: 88.050 mm (3.4665 inch)
Taper and out-of-round
Limit: 0.10 mm (0.004 inch)
NOTE: If any one of six cylinders has to be rebored, rebore all six to the same oversize. This is necessary for the sake of uniformity and
balance.