Cylinder Block Repair

CAST IRON POROSITY DEFECTS

CAUTION:
- Do not attempt to repair cracks.
- Do not attempt to repair areas where temperature will exceed 260°C (500°F).
- Do not attempt to repair areas exposed to engine coolant or oil.





1. Repair porosity defects with an epoxy sealer meeting Ford specification M3D35-A (E).
1 Clean the surface to be repaired 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 inches) from the repaired surface, or air dry for 10-12 hours at a temperature above1 0°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.