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Home >> Acura >> 1997 >> Integra GS-R Coupe L4-1797cc 1.8L DOHC (VTEC) MFI >> Repair and Diagnosis >> Engine, Cooling and Exhaust >> Engine >> Cylinder Block Assembly >> Piston Pin >> Testing and Inspection
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Piston Pin: Testing and Inspection





1. Measure the diameter of the piston pin.
Piston Pin Diameter:
Standard (New): 20.994 - 21.000 mm (0.8265 - 0.8268 inch)
Oversize: 20.997 - 21.003 mm (0.8267 - 0.8269 inch)

NOTE: All replacement piston pins are oversize.





2. Zero the dial indicator to the piston pin diameter.





3. Measure the piston pin-to-piston clearance. If the piston pin clearance is greater than 0.022 mm (0.0009 inch), remeasure using an oversize piston pin.

NOTE: Check the piston for distortion or cracks.





4. Check the difference between piston pin diameter and connecting rod small end diameter.





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