TM 10-4610-310-14
0120 00
Cylinder head
1. Measure the clearance of the cylinder head.
a. Rotate the crankshaft until the piston is TDC.
b. Place a straight edge across the piston bore and measure the clearance (h) between the straight
edge and the top of the piston by using a thickness gauge. See Figure 10.
Figure 10. Cylinder Head Clearance.
2. Determine the gasket(s) needed.
a. Calculate the thickness of the gasket(s) required by using the following method. The thickness of
gasket(s) should fall between the minimum and maximum values. (h) is the cylinder head
clearance measured in the previous step.
Minimum = 0.546 mm (h) and maximum 0.596 mm (h)
(or)
Minimum = 0.215 inch (h) and maximum 0.235 inch (h)
b. The gasket pack consists of following gaskets.
Number 40 = thickness 0.40 mm (0.016 inch)
Number 45 = thickness 0.45 mm (0.177 inch)
Number 50 = thickness 0.50 mm (0.197 inch)
Number 55 = thickness 0.55 mm (0.217 inch)
Number 60 = thickness 0.60 mm (0.024 inch)
3. Install the gasket(s) on the cylinder block.
4. Install the cylinder head (7) onto mounting studs (4). See Figure 2.
5. Install the washers (3), cap nuts (1), and nuts (2). See Figure 2.
6. Torque all four nuts to 11 ft-lb (1471 N-cm) in a criss-cross pattern.
7. Torque the nuts again between 21-24 ft-lb (2942-3334 N-cm).
Push Rod
Re-install the push rods into the head cylinder. Ensure to distinguish exhaust and intake push rods.
