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Home >> Mitsubishi >> 1997 >> Mirage Coupe DE L4-1468cc 1.5L SOHC MFI >> Repair and Diagnosis >> Engine, Cooling and Exhaust >> Engine >> Cylinder Block Assembly >> Piston Pin >> Service and Repair

Piston Pin: Service and Repair






REMOVAL
1. Remove the stop screw from the base.
2. Select the correct piston support for your application. Fit the piston support onto the base. Place the base on press support blocks.
3. Insert the press pin through the piston pin hole. Select the correct connecting rod guide pin (see tools listed). 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.
5. Press the piston pin out of the assembly.

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.

6. Remove the piston pin from the press 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 as described in the operating instructions of the tool.





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 oil, and 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.
7. Remove the piston assembly from the base. Remove the guide pin and press pin from the assembly.

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.

8. Remove the piston assembly from the base.
9. Remove the guide pin and press pin from the assembly.





10. Check that the piston moves smoothly.
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