Operation CHARM: Car repair manuals for everyone.

Removal and Replacement

REMOVAL
1. Disconnect the battery cables.
2. Remove the cylinder head.
3. Remove the oil pan and suction tube.
4. Using Miller Tool 7471-B crankshaft barring tool, rotate the crankshaft so all of the pistons are below TDC.
5. Before removing the piston(s) from the bore(s):
a. Remove any carbon ridge formations or deposits at the top of the bore with a dull scraper or soft wire brush.
b. If cylinder bore wear ridges are found, use a ridge reamer to cut the ridge from the bore. DO NOT remove more metal than necessary to remove the ridge.

NOTE: If cylinders have ridges, the cylinders are oversize and will more than likely need boring.

6. Using a hammer and steel stamp, identify the front of the piston by stamping the cylinder number in each piston to be removed at the top of the piston toward the front of the engine. DO NOT stamp in the outside 5 mm (0.197 in.) of the piston diameter.
7. Mark the connecting rod and cap with the corresponding cylinder numbers.
8. Remove the connecting rod bolts and rod caps. Use care so the cylinder bores and connecting rods are not damaged.
9. Use a hammer handle or similar object to push the piston and connecting rod through the cylinder bore.
10. Store the piston/rod assemblies in a rack.
11. If a piston must be replaced, replace with the same part number (grading) that was removed.