3.10
ENGINE
Cylinder / Piston - Engine Specifications
Main Components: Cylinder / Piston / Connecting Rod EH076OLE021
Cylinder
Cylinder - Surface warp limit
(mating with cylinder head)
0.004" (0.10 mm)
Cylinder Bore - Standard 3.1495" (80 mm)
Cylinder Taper Limit 0.00031" (0.008 mm)
Cylinder Out of Round Limit 0.00030" (0.0075 mm)
Cylinder to Piston Clearance .0015" ± .00059" (.040 ± .015mm)
Lifter
Lifter Outer Diameter Standard 0.84245" ± 0.00025" (21.39 8 ± 0.00635 mm)
Lifter Block Bore 0.8438" ± 0.00062" (21.4322 ± 0.0157 mm)
Piston
Piston - Standard 3.14803" ± .00028" (79.960 ± .007mm)
Piston Standard Inner Diameter of
Piston Pin Bore
0.70902" ± .00012" (18.009 ± 0.003 mm)
Piston Pin
Piston Pin Outer Diameter 0.70866" - 0.70846" (18 - 17.995 mm)
Piston Pin - Standard Clearance - Piston Pin to
Pin Bore
0.00047" ± 0.00024" (0.012 ± 0.006 mm)
Piston Pin - Degree of Fit Piston pin must be push fit (by hand) at 68° F (20° C)
Piston / Connecting Rod / Crankshaft - Engine Specifications
Main Components: Piston / Connecting Rod EH076OLE021
Piston Ring
Installed
Gap
Top Ring - Standard 0.0059± 0.138" (0.15 ± 0.35mm)
Top Ring - Limit > 15% Leakdown
Second Ring - Standard 0.0098 ± 0.197" (0.25 ± 0.50mm)
Second Ring - Limit > 15% Leakdown
Oil Ring - Standard 0.0196± 0.00984" (0.50 ± 0.25mm)
Oil Ring - Limit > 15% Leakdown
Ring to
Groove
Clearance
Top Ring - Standard 0.0024" ± 0.0008" (0.060 ± 0.020 mm)
Top Ring - Limit > 15% Leakdown
Second Ring - Standard 0.0028" ± 0.0008" (0.070 ± 0.020 mm)
Second Ring - Limit > 15% Leakdown
Connecting Rod
Connecting Rod Small End I.D. 0.7096"− 0.70846" (18 − 17.995 mm)
Connecting Rod Small End
Radial Clearance
0.0098"± 0.00039" (0.025 ± 0.010mm)
Connecting Rod Big End
Side Clearance
0.01181"± 0.00591" (0.030 ± 0.015mm)
Connecting Rod Big End
Radial Clearance
0.0015"± 0.00006" (0.0038 ± 0.0015mm)
Crankshaft Crankshaft Runout Limit 0.00236" (0.060mm)
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