Engine General Specifications

Engine Specifcations






Drive Belt Tension






Cylinder Head
a Valve seat angle - intake 30° and exhaust 37.5°.
b Gasket surface finish - 63-125 in.






Rocker Arm Shaft, Push Rods and Valve Tappets
a Service limit - 0.005.
b Time required for plunger to move 0.125 in. under 50 lbs. with test fluid at room temperature.
c Measured at valve tip to rocker arm.






Valve Springs
a Service Limit - ±8lbs.










Valves
a Service clearance - 0.0055.






Camshaft






Camshaft Drive
a All camshaft journals are 53.31-53.34 mm (2.099-2.100 in.).
b Distance in inches that front edge of the bearing is installed below the front face of the cylinder block.






Cylinder Block
a Maximum out-of-round - 0.013 mm (0.0005 in.); maximum taper - 0.013 mm (0.0005 in.); cylinder bore surface finish - RMS 15-30.
b With bearing caps tightened in place.














Crankshaft and Flywheel
a Maximum out-of-round - 0.0056 mm (0.00022 in.)
b Service limit - 0.51mm (0.020 in.)






Crankshaft Bearings










Connecting Rod
a Connecting rod bearing bore maximum out-of-round - 0.0005 and maximum bore taper - 0.0005.
b With beaing caps tightened in place.






Piston
a Measured at 90° to the pin at 42.77 mm (1.684 in.) below oil ring groove at room temperature.
b Clearance in cylinder bores: 0.1118-0.1549 mm (0.0044-0.0061 in.).
c Oversize service piston specifications are all ± 0.13208 mm (0.0052 in.)






Piston Pin
a Selective fit.






Piston Rings






Exhaust Manifold






Drive Gear Backlash






Oil Pump, Oil Cooler and Oil Capacity
a Add 2 US quarts (1.66 imperial quarts or 1.9 liters) when replacing oil filter.