Isuzu 3LA, Руководство пользователя

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II. Engine Component Description
U
L-Series Diesel 15
Cylinder Head Gasket
IMPORTANT: The head gasket must be
installed with the flat side of the sealing
bead facing up. Also the large flat end of the
gasket must face forward.
The L-series engines use a three layer ultra
thin laminated steel head gasket that requires
no retorqueing after the engine break-in
period. Holes for coolant are drilled between
the valve seats for effective cooling of the
combustion area.
The sealing bead surrounding the cylinders of
the gasket is stainless steel. It protects the head
gasket from the high cylinder pressures. The
sealing bead also protects the gasket from the
high temperatures released by the hot plugs.
The gasket comes pre-coated with a silicon
material. Therefore, no additional application
of sealers or gasket adhesives is necessary, and
no re-torqueing of the head bolts is required if
the prescribed angular tightening method is
used.
To identify the gallies, use the drawing and
legend below.
Legend
o Coolant
- Oil
+ Bolt
x Push Rod
Head bolt
loosening
sequence.
Head bolt torque
sequence.
(See engine repair
specifications
section.)