RAV4 4WD L4-2.0L (3S-FE) (1996)
If the oil clearance is greater than maximum, replace the piston.
C. Inspect piston ring end gap.
(a)
Insert the piston ring into the cylinder bore.
(b) Using a piston, push the piston ring a little beyond the bottom of the ring travel, 110 mm (4.33 inch) from the top of the cylinder block.
(c)
Using a feeler gauge, measure the end gap.
Standard end gap:
No. 1: 0.270 - 0.500 mm (0.0106 - 0.0197 inch)
No. 2: 0.270 - 0.510 mm (0.0106 - 0.0201 inch)
Oil (Side rail): 0.200 - 0.550 mm (0.0079 - 0.0217 inch)
Maximum end gap:
No. 1: 1.10 mm (0.0433 inch)
No. 2: 1.11 mm (0.0437 inch)
Oil (Side rail): 1.15 mm (0.0453 inch)
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.
D. Inspect piston pin fit.
At 60° C (140° F), you should be able to push the piston pin into the piston pin hole with your thumb.