Dimension & Clearance Specifications - Cylinder Block

Engine Specifications

Cylinder Block
Bore Diameter 89.994 mm - 90.006 mm (3.5431" - 3.5435")
Bore Out-of-Round-Max 0.010 mm (0.0004")
Bore Taper-Max. Top to 106 mm (4.173") Down 0.008 mm (0.0003")
Runout - Rear Face of Block to Crank. Ctr Line-Max. 0.07 mm (0.002")

Camshaft Housing
Lifter Bore I.D. 33.989 mm 34.016 mm (1.3381" - 1.3393")
Lifter O.D. 35.959 mm - 33.975 mm (1.3369" - 1.3375")
Lifter to Bore Clearance 0.016 mm - 0.058 mm (0.0006" - 0.0023")
Lip Seal Bore I.D. 49.975 mm - 50.025 mm (1.9675" - 1.9695")
Lip Seal O.D. 49.975 mm - 50.025 mm (1.9675" - 1.9695")
Cam Carrier Flatness 0.07 mm (0.0028")
Bottom - Max Within 100.0 mm (3.937") 0.025 mm (0.001")

Balance Shafts
Housing Flatness - Max .076 mm (0.0030")
Bore Roundness .025 mm (0.0009")
Bearing Thickness 1.500 - 1.508 mm (0.0590 - 0.0593")
Bearing I.D. 30.019 - 30.061 mm (1.1819 - 1.1835")
Housing BORE 33.025 - 33.050 mm (1.3001 - 1.1801")
Shaft Journal O.D. 29.950 - 29.975 mm (1.1791 - 1.1801")
Journal Taper (INTENTIONAL TOWARDS COUNTERWEIGHT) 0.000 - 0.010 mm (0.000 - 0.0004")
Journal Roundness - Max 0.005 mm (0.0002")
Bearing Clearance 0.044 - 0.111 mm (0.0017 - 0.0044")
Gear Diameter over two 2.5 mm pins 61.050 - 61.145 (2.4035 - 2.4073")
Gear Backlash 0.008 - 0.086 mm (0.0003 - 0.0034")
Chain Slack - With 6 lbs of pressure applied to the guide 1.0 mm (0.040")
Shaft Groove Width 3.23 - 3.40 mm (0.127 - 0.134")
Thrust Plate Thickness 2.945 - 3.045 mm (0.1159 - 0.1199")
Endplay 185 - .455 mm (0.0073 - 0.0179")