CYLINDER HONING

Fig. 1: Proper cylinder for cross-hatching after honing

Fig. 2: Using a ball type cylinder hone is an easy way to hone the cylinder bore

Fig. 3: A solid hone can also be used to cross-hatch the cylinder bore

Fig. 4: As with a ball hone, work the hone carefully up and down the bore to achieve the desired results

When cylinders are being honed, follow the manufacturer's recommendations for the use of the hone.
Occasionally during the honing operation, the cylinder bore should be thoroughly cleaned and the selected piston checked for correct fit.
When finish-honing a cylinder bore, the hone should be moved up and down at a sufficient speed to obtain a very fine uniform surface finish in a cross-hatch pattern of approximately 45–65°included angle. The finish marks should be clean but not sharp, free from imbedded particles and torn or folded metal.
Permanently mark the piston for the cylinder to which it has been fitted and proceed to hone the remaining cylinders.
NOTE: Handle pistons with care. Do not attempt to force pistons through cylinders until the cylinders have been honed to correct size. Pistons can be distorted through careless handling.
Thoroughly clean the bores with hot water and detergent. Scrub well with a stiff bristle brush and rinse thoroughly with hot water. It is extremely essential that a good cleaning operation be performed. If any of the abrasive material is allowed to remain in the cylinder bores, it will rapidly wear the new rings and cylinder bores. The bores should be swabbed several times with light engine oil and a clean cloth and then wiped with a clean dry cloth. CYLINDERS SHOULD NOT BE CLEANED WITH KEROSENE OR GASOLINE. Clean the remainder of the cylinder block to remove the excess material spread during the honing operation.