Operation CHARM: Car repair manuals for everyone.

Block Repair

CAUTION: Do not attempt to repair cracks.

CAUTION: Do not attempt to repair areas where temperatures will exceed 260°C (500°F).

Repair porosity defects with an epoxy sealer.
1. Clean surface to be repair to a bright oil-free metal surface.
2. Chamfer or undercut the repair area to a greater depth than the rest of the cleaned surface. Solid metal must surround the area to be repaired.
3. Apply the epoxy sealer and heat-cure with a 250 watt lamp placed 254 mm (10 inch) from the repaired surface or air dry for 10-12 hours at a temperature above 10°C (50°F).
4. Sand or grind the repaired area to blend with the general contour of the surface.
5. Paint the surface to match the rest of the cylinder block.