YELLAHEEP
NAXJA Forum User
- Location
- Littleton, Colorado
Have you checked the length of the cylinder bore for cavitation or cracks? I noticed in the photos the cylinder in question is at the top of the bore. Move that piston down and check that out.
Cast steel heads don't generally hide cracks well but I've seen some that don't show without magna flux inspection. We had an '84 Skyhawk that when cold would run great but at temp would missfire in one cylinder and presented no evidence of spark quench. Took the head in to be milled and the shop found a crack in the narrow area between the intake and exhaust valves.
Cast steel heads don't generally hide cracks well but I've seen some that don't show without magna flux inspection. We had an '84 Skyhawk that when cold would run great but at temp would missfire in one cylinder and presented no evidence of spark quench. Took the head in to be milled and the shop found a crack in the narrow area between the intake and exhaust valves.