New Holland LS140 Workshop Manual page 109

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Cylinder Head

During assembly, the ultimate engine compression

ratio is established by the thickness of the head

gasket used. For service replacement, head gaskets

of different thickness are available. The correct head

gasket must be selected based on the amount the

pistons protrude above the face of the block when at

top-dead-center.

The correct head gasket is determined as follows:

1. Position each piston at top-dead-center and,

using a dial indicator or feeler gauge, determine

the distance the piston protrudes above the block

NOTE: Measure each of the pistons while holding a

slight down pressure on the piston. Use the

dimension from the piston which has the greatest

projection and select an appropriate head gasket.

0.5 - 0.7 mm

111147490 t = 1.3 mm

0.7 - 0.8 mm

111147500 t = 1.4 mm

NOTE: The variation between pistons must be within

0.1 mm (0.004,).

NOTE: The last four digits of the gasket part number

are stamped on the head gasket. Install the gasket

with the numbers toward the cylinder head.

Place the head on the block using the dowel pin

for positioning.

SECTION 10 - ENGINE

(t = 0.051")

(t = 0.055")

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