Mitsubishi Galant. Manual — part 42
PISTON AND CONNECTING ROD
TSB Revision
ENGINE OVERHAUL <2.4L>
11B-49
Required Special Tool:
MIT216941: Piston Pin Setting Tool
REMOVAL SERVICE POINT
<<A>> CONNECTING ROD CAP REMOVAL
1. Mark the cylinder number on the side of the connecting rod
big end for correct reassembly.
2. Keep the removed connecting rods, caps, and bearings in
that order according to the cylinder number.
<<B>> PISTON PIN REMOVAL
1. Remove the stop screw from the base.
2. Select the correct piston support for your application (See
above). Fit the piston support onto the base. Place the base
on press support blocks.
10.PISTON
11. CONNECTING ROD
12.BOLT
REMOVAL STEPS (Continued)
AKX00600
CYLINDER NUMBER
AB
ITEM NO.
PART NO.
DESCRIPTION
1.
MIT310134
Base
2.
MIT310136
Piston support
3.
MIT310137
Connecting rod guide pin
4.
MIT310138
Connecting rod guide pin
5.
MIT310139
Connecting rod guide pin
6.
MIT310140
Piston support
7.
MIT310141
Connecting rod guide pin
8.
MIT310142
Piston support
9.
MIT48143
Press pin
10.
216943
Stop screw
11.
10396
Nut
AKX00598
PISTON PIN SETTING
TOOL MIT216941
1
2
5
8
11
10
9
6
3
4
7
AB
PISTON AND CONNECTING ROD
TSB Revision
ENGINE OVERHAUL <2.4L>
11B-50
3. Insert the press pin through the piston pin hole. Select the
correct connecting rod guide pin (See above). Thread the
guide pin onto the threaded portion of the press pin.
4. Position the piston assembly on the piston support in the
press. With the press pin up as shown, insert the guide pin
through the hole in the piston and through the hole in the
piston support.
CAUTION
To avoid piston damage, the piston support must seat
squarely against the piston. Verify that the piston pin will
slide through the hole in the piston support.
5. Press the piston pin out of the assembly.
6. Remove the piston pin from the press pin.
INSTALLATION SERVICE POINTS
>>A<< PISTON PIN INSTALLATION
1. Thread the stop screw and lock nut assembly into the base.
Fit the correct piston support on top of the base. Insert the
press pin, threaded end up, into the hole in the piston
support until the press pin touches the stop screw.
2. Using the markings on the press pin, adjust the stop screw
to the depth shown on the instruction for special tool
MIT216941.
AKX00516
PRESS
PIN
PISTON PIN
FRONT MARK
FRONT
MARK
CONNECTING
ROD GUIDE PIN
BASE
AB
AKX00599
PRESS
PIN
BASE
PISTON
SUPPORT
LOCKNUT
STOP SCREW
FLAT PISTON
SUPPORT
PIN DEPTH SET
LOCATION
AB
PISTON AND CONNECTING ROD
TSB Revision
ENGINE OVERHAUL <2.4L>
11B-51
3. Place the base on press support blocks.
4. Slide the piston pin over the threaded end of the press pin,
and thread the correct guide pin up against it.
5. Coat the piston pin with engine oil. With the connecting rod
held in position, slide the guide pin through the piston and
connecting rod.
6. Press the piston pin through the connecting rod until the
guide pin contacts the stop screw.
CAUTION
Due to production tolerance variations, it is necessary to
visually inspect the piston pin depth after installation to
verify that the piston pin is centered. Adjust if necessary.
7. Remove the piston assembly from the base. Remove the
guide pin and press pin from the assembly.
8. Check that the piston moves smoothly.
>>B<< OIL RING INSTALLATION
1. Fit the oil ring spacer into the piston ring groove.
NOTE: The side rails and spacer may be installed in either
direction.
NOTE: New spacers and side rails are colored for
identification of their sizes.
AKX00517
JAM NUT
PISTON PIN
PISTON PIN
FRONT
MARK
CONNECTING
ROD
GUIDE PIN
BASE
STOP
SCREW
AB
AKX00568
SIZE
IDENTIFICATION COLOR
Standard
None
0.50 mm (0.020 in) oversize
Red
1.00 mm (0.040 in) oversize
Yellow
AKX00473
UPPER SIDE RAIL
LOWER SIDE RAIL
SPACER
AB
PISTON AND CONNECTING ROD
TSB Revision
ENGINE OVERHAUL <2.4L>
11B-52
CAUTION
Do not use a piston ring expander when installing side rail.
2. Install the upper side rail.
To install the side rail, first fit one end of the rail into the
piston groove, then press the remaining portion into position
by finger. See illustration.
3. Install the lower side rail in the same procedure as described
in step 2.
4. Make sure that the side rails move smoothly in both
directions.
>>C<< PISTON RING NUMBER 2 / PISTON RING NUMBER
1 INSTALLATION
1. To prevent wrong installation, check the identification mark
of each piston ring. The identification mark is stamped near
the ring gap:
Identification mark:
Number 1 ring 1R
Number 2 ring 2R
NOTE: Size marks on piston rings are as follows.
2. Using the piston ring expander, fit number 2 into the number
2 groove of piston.
NOTE: Install piston rings with identification mark facing up,
to the piston crown side.
3. Install the number 1 piston ring in the same manner as step
2.
AKX00442
SIDE RAIL END
AB
SIZE
SIZE MARK
Standard
None
0.50 mm (0.020 in) oversize
50
1.00 mm (0.040 in) oversize
100
AKX00527
NO.2
IDENTIFICATION MARK "1R"
IDENTIFICATION
MARK "2R"
SIZE MARK
NO.1
AB
AKX00515
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