C 2500 Truck 2WD V8-5.7L VIN R (1997)
Piston Ring: Specifications
Piston Compression Ring Groove Clearance:
Production Top ..................................................................................................................................................... 0.030-0.070 mm (0.0012-0.0027 inch)
Production 2nd ........................................................................................................................................................ 0.040-0.080 mm (0.0015-0.003 inch)
Service Limit Top ................................................................................................................................................. 0.030-0.090 mm (0.0012-0.0035 inch)
Service Limit 2nd .................................................................................................................................................. 0.040-0.100 mm (0.0015-0.0040 inch)
Piston Compression Ring Gap: [1]
Production Top ............................................................................................................................................................. 0.30-0.58 mm (0.012-0.022 inch)
Production 2nd .............................................................................................................................................................. 0.51-0.71 mm (0.020-0.028 inch)
Service Top ................................................................................................................................................................... 0.30-0.85 mm (0.012-0.025 inch)
Service 2nd .................................................................................................................................................................... 0.46-0.90 mm (0.016-0.035 inch)
Piston Oil Ring Groove Clearance:
Production ................................................................................................................................................................... 0.051-0.17 mm (0.002-0.006 inch)
Service ..................................................................................................................................................................... 0.051-0.195 mm (0.002-0.0078 inch)
Piston Oil Ring Gap: [1]
Production ..................................................................................................................................................................... 0.25-0.76 mm (0.010-0.030 inch)
Service ......................................................................................................................................................................... 0.25-0.785 mm (0.010-0.030 inch)
[1] End gaps measured in cylinder bore.
