Mitsubishi 4g63, Руководство по обслуживанию

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PISTON AND CONNECTING ROD
ENGINE OVERHAUL <4G63-Turbo>
11D-59
>>D<< PISTON AND CONNECTING ROD
ASSEMBLY INSTALLATION
1. Apply engine oil generously to the piston's outside
surface, piston rings, and oil ring.
2. Align the end gaps of the piston rings and oil ring
(side rails and spacer) as shown in the drawing.
3. Insert the piston and connecting rod assembly
from the top of cylinder with the front mark on the
crown toward the camshaft sprocket.
CAUTION
• Do not strike the assembly with a large force.
Doing so could break the piston rings.
• When striking the assembly into cylinder, do
not allow it to interfere with the oil jet.
4. Use a piston ring band to hold the piston rings
compressed when inserting the piston and
connecting rod assembly into the cylinder.
>>E<< CONNECTING ROD BEARING
INSTALLATION
1. When replacing the connecting rod bearing,
select a bearing of the size appropriate for the
crankshaft pin diameter in accordance with the
crankshaft pin and connecting rod bearing
matching table shown below.
2. Crankshaft pin diameter marks are stamped in the
indicated locations.
3. Connecting rod bearing identification mark is
stamped in the indicated location on each
bearing.
<Bearing selection example>
If the crankshaft pin diameter mark is “I,” select a
bearing marked “1.”
If the crankshaft pin diameter mark is illegible,
measure the pin diameter and select a bearing
with the mark corresponding to the measurement.
4. Install the upper and lower halves of the selected
bearing on the connecting rod big end and cap,
respectively.
AK202730
No. 1
No. 2
Side rail
Side rail
AB
AK202798
Crankshaft pin Connecting rod
bearing
Identification
mark Diameter mm Identification
mark
I 44.995
−
45.000 0
II 44.985 − 44.995 1
III 44.980
−
44.985 2
AK304412
Locations of crankshaft pin diameter
marks
No. 3
No. 1
No. 2
No. 4
AB
AK304598
Connecting bearing
Identification
mark position
AB