Page text (OCR transcript)
4. INSPECT PISTON RING END GAP
(a) Insert the piston ring into the cylinder.
(b) Using a piston, push the ring a little beyond the bottom of the ring travel.
(110 mm (4.33 in.) from the top surface of cylinder block)
(c) Using a thickness gauge, measure the end gap.
Ring end gap:
No.1 No.2 Oil
STD Limit STD Limit STD Limit
7M-GE 0.23 - 0.38 0.68 0.10 - 0.40 1.00
(0.0091 - 0.0150) (0.0268) 0.25 - 0.53 1.13 (0.0039 - 0.0157) (0.0394)
7M-GTE 0.29 - 0.44 0.74 (0.0098 - 0.0209) (0.0445)
(0.0114 - 0.0173) (0.0291) -Δo- 0.10 - 0.44 1.04
(0.0039 - 0.0173) (0.0409)
If the diameter is greater than maximum, rebore all six cylinders, or replace the cylinder block.
5. CHECK PISTON PIN FIT
At 60°C (140°F) you should be able to push the pin into the piston with your thumb.
If the pin can be installed at a lower temperature, replace the piston.
6. INSPECT CONNECTING ROD
(a) Using a rod aligner and thickness gauge, check the connecting rod alignment.
• Check for bend:
Maximum bend:
0.05 mm (0.0020 in.) per 100 mm (3.94 in.)
If bend is greater than maximum, replace the connecting rod assembly.
• Check for twist:
Maximum twist:
0.15 mm (0.0059 in.) per 100 mm (3.94 in.)
If twist is greater than maximum, replace the connecting rod assembly.