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Home >> Jeep >> 2002 >> Grand Cherokee 4WD Laredo V8-4.7L >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Engine >> System Specifications >> Service Specifications >> Piston Rings
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Piston Rings

PISTON RING SPECIFICATIONS

Ring Gap
Compression Rings 0.37 - 0.63 mm (0.0146 - 0.0249 in.)
Oil Control (Steel Rails) 0.25 - 0.76 mm (0.0099 - 0.30 in.)
Side Clearance
Top Compression Ring 0.051 - 0.094 mm (0.0020 - 0.0037 in.)
2nd Compression Ring 0.040 - 0.080 mm (0.0016 - 0.0031 in.)
Oil Ring (Steel Ring) 0.019 - 0.229 mm (0.0007 - 0.0091 in.)
Ring Width
Compression Rings 1.472 - 1.490 mm (0.057 - 0.058 in.)
Oil Ring (Steel Rails) 0.445 - 0.470 mm (0.017 - 0.018 in.)