Mitsubishi Fuso CANTER FE85DE6SLGP, Руководство по ремонту

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• The cylinder head gasket comes in three sizes. Choose the gas-
ket appropriate for the cylinder head by the following procedure.
• Measure the amount of piston projection for every cylinder.
(See “PISTONS, CONNECTING RODS AND CYLINDER
LINERS” section.)
• Select a cylinder head gasket with the appropriate thickness
for the average of the piston projection measurements from
the table below.
• If any of the piston projection measurements is more than
0.05 mm larger than the average value, then use the gasket
one class higher than that class (A
→
B, B
→
C).
Unit: mm
• The size class of the cylinder head gasket can be determined
from the size mark or the shape of the notches cut on the gasket
edge.
CAUTION
• Replacement of the piston or connecting rod alters the pis-
ton projection. Always measure the amount of piston pro-
jection after either or both of them are replaced.
• Clean the sealant application surfaces of each part.
• Apply sealant to the top surfaces of the joints between the upper
crankcase and front case (at two places).
• Install the cylinder head and its gasket on the upper crankcase
within three minutes of applying the sealant, being careful not to
dislodge the sealant.
CAUTION
• Be careful not to damage the cylinder head gasket. Other-
wise, coolant or oil may leak out, or engine power reduction
due to noise may result.
• Do not run the engine within one hour of mounting the cyl-
inderhead. If any cylinder head bolts are loosened or re-
moved, be sure to reapply sealant to the surfaces specified
above.
• Tighten the cylinder head bolts (1 to 18) to a torque of 147 N
·
m
{15 kgf
·
m} (wet) in the order indicated in the illustration. Then,
tighten them further by 90
°
in the same order.
• After tightening each bolt, make a punch mark on the head of
the bolt to indicate the number of times that it has been used.
CAUTION
• Cylinder head bolts that have been tightened using the
torque-turn method must never be additionally tightened af-
ter the final angular tightening.
Piston projection
Cylinder head gasket
Size
Thickness
when tightened
–0.088 to –0.027 “A” 0.75 ± 0.04
–0.027 to 0.033 “B” 0.80 ± 0.04
0.033 to 0.094 “C” 0.85 ± 0.04
CYLINDER HEAD AND VALVE MECHANISM