Ford — Piston and Piston Pins Disassembly

A Ford service procedure — check it applies to your exact model before use.

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Procedure

1. 1. Remove the connecting rod bearing from the
2. 2.
3. 3. Remove the piston rings using a suitable piston
4. 4. Store the piston, pin and connecting rod to ensure
5. 5. Using an arbor press and Piston Pin Removing
6. 1. Apply a light coat of Motorcraft Super Premium
7. 2.
8. 0.406mm (0.008-0.016 inch) for top ring, 0.33-
9. 0.50mm (0.013-0.019 inch) for second ring, and
10. 0.254-0.762mm (0.010-0.030 inch) for oil control
11. 3. Check the ring side clearance. Refer to Section
12. 01. Side clearance for both compression rings
13. 4. Make sure the connecting rod bearings and the
14. 5. Make certain lock slots in cap are on the same
15. 6.

Source: manual:FORD LRG425 Service Manual.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.