Sidekick JS 2D 2WD L4-1.6L (1998)
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Piston diameter:
As indicated in figure, piston diameter should be measured at a position 15 mm (0.59 inch) from piston skirt end in the direction perpendicular to
piston pinch
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Piston clearance:
Measure cylinder bore diameter and piston diameter to find their difference which is piston clearance. Piston clearance should be within
specification as given below. If it is out of specification, rebore cylinder and use oversize piston.
Piston clearance: 0.02 - 0.04 mm (0.0008 - 0.0015 inch)
NOTE: Cylinder bore diameters used here are measured in thrust direction at two positions.
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Ring groove clearance:
Before checking, piston grooves must be clean, dry and free of carbon.
Fit new piston ring into piston groove, and measure clearance between ring and ring land by using thickness gauge. If clearance is out of
specification, replace piston.
Ring groove clearance:
Top: 0.03 - 0.07 mm (0.0012 - 0.0027 inch)
2nd: 0.02 - 0.06 mm (0.0008 - 0.0023 inch)
