gmc Workshop Repair Guides

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Cylinder Head Assembly > < Piston, Engine|Specifications
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Piston Ring: Specifications

Piston Ring End Gap-First Compression Ring-Production ...........................................................................................  0.25 - 0.40 mm (0.010 - 0.016 inch)
Piston Ring End Gap-Second Compression Ring-Production .......................................................................................  0.38 - 0.58 mm (0.015 - 0.023 inch)
Piston Ring End Gap-Oil Control Ring-Production ......................................................................................................  0.25 - 0.76 mm (0.010 - 0.029 inch)
Piston Ring End Gap-First Compression Ring-Service .................................................................................................  0.25 - 0.50 mm (0.010 - 0.020 inch)
Piston Ring End Gap-Second Compression Ring-Service ............................................................................................  0.38 - 0.80 mm (0.015 - 0.031 inch)
Piston Ring End Gap-Oil Control Ring-Service ....................................................................................................  0.005 - 0.090 mm (0.0002 - 0.0035 inch)
Piston Ring to Groove Clearance-First Compression Ring-Production ................................................................  0.030 - 0.070 mm (0.0012 - 0.0027 inch)
Piston Ring to Groove Clearance-Second Compression Ring Production ............................................................  0.076 - 0.280 mm (0.0030 - 0.0110 inch)
Piston Ring to Groove Clearance-Oil Control Ring Production ............................................................................  0.046 - 0.196 mm (0.0018 - 0.0077 inch)
Piston Ring to Groove Clearance-First Compression Ring-Service ......................................................................  0.030 - 0.085 mm (0.0012 - 0.0033 inch)
Piston Ring to Groove Clearance-Second Compression Ring-Service ..................................................................  0.030 - 0.085 mm (0.0012 - 0.0033 inch)
Piston Ring to Groove Clearance-Oil Control Ring-Service .................................................................................  0.076 - 0.200 mm (0.0030 - 0.0079 inch)

Cylinder Head Assembly > < Piston, Engine|Specifications