Cylinder Head Assembly: Specifications

ENGINE GENERAL SPECIFICATIONS

















Footnotes:
a Cylinder Bore Diameter
Grade 1: 89.000-89.010 mm (3.50393-3.504323 inch)
Grade 2: 89.010-89.020 mm (3.504323-3.504717 inch)
Grade 3: 89.020-82.030 mm (3.504717-3.50511 inch)

b 0.250 mm Undersize-add 0.125 mm to standard or grade 2 thickness.

d Measured at 50 mm (1.9685 inch) from outer perimeter top of piston to the pin axis.

c Pin bore and crank bearing bore must be parallel and in same vertical plane within the specified total difference when measured at the ends of a 203 mm bar, 101.5 mm on each side of rod centerline.

e Specification 82.4 mm (3.2441 inch) diameter gauge.

f With filter change.

g Newly installed refers to the condition of the "new" drive belt before the engine has made no more than one rotation and before the drive belt has had a change to stretch or seat into the pulley grooves.

TIGHTENING SPECIFICATIONS

LH Cylinder Head





Note: The cylinder head bolts must be replaced with new bolts. They are torque-to-yield designed and cannot be reused.

Position the LH cylinder head, gasket and install the bolts in the sequence shown in six stages.
- Tighten the bolts in six stages.
- Stage 1: Tighten to 40 Nm (30 ft. lbs.).
- Stage 2: Tighten bolts 90 degrees.
- Stage 3: Loosen one full turn.
- Stage 4: Tighten to 40 Nm (30 ft. lbs.).
- Stage 5: Tighten 90 degrees.
- Stage 6: Tighten 90 degrees.

RH Cylinder Head





Note: The cylinder head bolts must be replaced with new bolts. They are torque-to-yield designed and cannot be reused.

Position the RH cylinder head, gasket and install the bolts in the sequence shown in six stages.
- Tighten the bolts in six stages.
- Stage 1: Tighten to 40 Nm (30 ft. lbs.).
- Stage 2: Tighten bolts 90 degrees.
- Stage 3: Loosen one full turn.
- Stage 4: Tighten to 40 Nm (30 ft. lbs.).
- Stage 5: Tighten 90 degrees.
- Stage 6: Tighten 90 degrees.