Ford 455 - DISASSEMBLY; INSPECTION AND REPAIR

-------------PART 1 - ENGINE SYSTEMS------------
2. If the bearing liners appear to be serviceable, keep
with their respective rods for reassembly in the
engine. If the clearance exceeds the specified
limits, new bearings must be installed. Undersize
connecting rod bearings are available in 0.002 in.
(0.0508 mm.), 0.010 in. (0.254 mm.), 0.020 in.
(0.508 mm.), 0.030 in. (0.762 mm.) and 0.040 in.
(1.016 mm.) for service. If new bearings are re-
quired follow the procedure covered in the
crankshaft section of this chapter.
DISASSEMBLY
1. Remove the piston pin retainer (snap ring) from
each side of the piston and remove the pin.
2. Use an expander to remove the piston rings,
Figure 34.
3. Identify each piston and rod for reassembly, Figure
35.
Figure 34
Piston Ring Removal
1. Piston Ring 2. Piston Ring
Expander Tool
INSPECTION AND REPAIR
16
1. Wash the piston and connecting rod assembly in
a suitable solvent and dry with a clean lint free
cloth or compressed air.
2. Inspect the piston ring lands, skirts and pin bosses
for damage.
3. Clean the ring grooves and using a new ring and
feeler gauge check the piston ring lands for wear,
Figure 36. For maximum ring clearance, see
"Specifications," Chapter 3.
4. Check the connecting rod components for
damage and place each connecting rod in an align-
ment fixture to check for distortion, see
"Specifications," Chapter 3.
5. Measure the outside diameter of the piston pin
and the inside diameter of the connecting rod
bushing. If the clearance is not within the specified
limits, see "Specifications," Chapter 3, press out
the connecting rod bushing and install a new
bushing using Tool No. 9514 with a suitable
adapter, Figure 37.
6. After installation of a new connecting rod bushing,
use the hole in the top of the rod as a guide, drill
a 0.25 in. (6.4 mm) diameter hole through one wall
of the bushing, Figure 38.
7. Use an expansion reamer to ream the bushing to
obtain the specified bushing-to-piston pin
clearance.
Figure 35
Piston and Connecting Rod
Disassembled
1. Retaining Nuts 6. Bolt
2. Bearing Cap 7. Pin Retainers
3. Connecting Rod 8. Piston Pin
4. Piston Rings 9. Piston
5. Bearing Liners