Cleaning and Inspection
CLEANINGIf the entire engine has not been disassembled, clean the individual cylinder bore(s) with a cloth soaked with solvent. Dry with a clean, lint-free cloth.
If the entire engine has been disassembled, refer to Cylinder Block Assembly Cleaning and Inspection. Cleaning and Inspection
After any cylinder bore service operation, such as honing or deglazing clean the bore(s) with soap or detergent and water. Then thoroughly rinse the bore(s) with clean water to remove the soap or detergent, and wipe the bore(s) dry with a clean lint-free cloth. Finally wipe the bore(s) with a clean cloth dipped in XO-10W30-QSP or -DSP or equivalent motor oil meeting Ford specification ESE-M2C 153-E.
INSPECTION
Before removing the piston:
1. Check the amount of ridge at the top of the bore. A thick ridge is a sign of considerable wear.
2. Look for signs of coolant in the bore, especially rust on the bore surface indicating possible leaking head gasket (6051) or a crack in the cylinder bore.
3. Check the top of the piston for possible oversize. If oversize pistons have been installed, the oversize will be stamped in the top of the piston.
After the piston is removed and the bore cleaned:
4. Look for scoring. These are parallel gouges usually on the piston thrust side, that is, at right angles to the piston pin (6135). If scored, the cylinder will have to be refinished.
5. Look for cracks. If unsure about a crack, tiny cracks may be detected by coating the bore with a mixture of 25 percent kerosene and 75 percent light engine oil. Wipe the bore dry and immediately apply a coating of zinc oxide dissolved in wood alcohol. Do not use rubbing alcohol as a substitute. If cracks are present, the coating will become discolored at the damaged area. Replace the cylinder block (6010) if it is cracked. Magnafluxing may also be used.
6. Check for cylinder wall glazing. When refinished, the cylinder bore is given a slightly rough finish with a cylinder hone to help seat the new piston rings. This finish is worn away as the piston rings and cylinder bore "mate" and the bore becomes glassy smooth. If the engine has been run enough for this to have happened, the cylinder will at least have to be honed to seat the new piston rings. New piston rings should be installed when the piston is removed and reinstalled because piston rings are given a special finish by the factory to help them wear in and seat. In seating, the special finish is worn off. Reusing piston rings will result in high oil consumption.