Inspection
Inspection1. CAUTION: There is no authorized repair for internal cracks in the cylinder block If cracks are present, install a new cylinder block.
NOTE: Do not substitute rubbing alcohol for wood alcohol.
Inspect the cylinder block for cracks not visible to the eye.
1 Coat the suspected area with a mixture of 25 percent kerosene and 75 percent light engine oil.
2 Wipe the area dry, and immediately apply a coating of zinc oxide dissolved in wood alcohol. If cracks are present, the coating will become discolored at the damaged area.