![](../../../img/11/AK502751AA00ENG.png)
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1.Check clearance between
piston rings and ring grooves. If the limit is exceeded,
replace
piston rings or piston, or both. Standard
value:
No. 1 ring: 0.03 - 0.07
mm No. 2 ring: 0.03 - 0.07
mm
Limit: 0.1 mm
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![](../../../img/11/AK503370AG00ENG.png)
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2.Put piston rings into the
cylinder bore, press them against the piston top face, and
push
them in. After achieving squareness, measure the end gap
with a thickness gauge. If the end
gap is excessive, replace piston
rings. Standard value:
No. 1
ring: 0.15 - 0.28 mm <4B11> No. 1
ring: 0.15 - 0.25 mm <4B12> No. 2
ring: 0.30 - 0.45 mm <4B11> No. 2
ring: 0.25 - 0.40 mm <4B12> Oil
ring: 0.10 - 0.35
mm
Limit:
No. 1 ring: 0.8
mm No. 2 ring: 0.8 mm Oil ring: 1.0
mm
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1.Wipe oil off the
crankshaft pin and connecting rod bearing.
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2.Place a Plastigage in
length equal to the bearing width on the pin shaft straight
in alignment with the shaft centre.
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![](../../../img/11/AK503373AC00ENG.png)
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3.Carefully install the
connecting rod cap and tighten bolts to the specified torque
of
5.0 N·m → 20 N·m →
+90°. 4.Remove bolts and gently remove
the connecting rod cap.
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![](../../../img/11/AK503374AC00ENG.png)
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5.Measure the crushed
Plastigage width (area most widely crushed) using a scale
printed
on the Plastigage bag. Standard value: 0.018
- 0.045 mm Limit: 0.1 mm
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