Corolla Sedan 4-Door L4-1587cc 1.6L DOHC MFI (1997)
Piston Ring: Testing and Inspection
1. Insert the piston ring into the cylinder bore.
2. Using a piston, push the piston ring a little beyond the bottom of the ring travel, 96 mm (3.78 inch), 104 mm (4.09 inch) from the top of the
cylinder block.
3. Using a thickness gauge, measure the end gap. If the end gap is greater than maximum, replace the piston ring. If the end gap is greater than
maximum, even with a new piston ring, rebore all the 4 cylinders or replace the cylinder block.
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Standard end gap:
No.1: 0.250-0.350 mm (0.0098-0.0138 inch)
No.2: 0.350-0.500 mm (0.0138-0.0197 inch)
Oil (Side rail): 0.100-0.400 mm (0.0039-0.0157 inch)
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Maximum end gap:
No.1: 1.05 mm (0.0413 inch)
No.2: 1.20 mm (0.0472 inch)
Oil (Side rail): 1.05 mm (0.0413 inch)
