Valve Guide Removal
- Use a hot plate or oven to heat cylinder head to 300°F (150°C). Use Valve Guide Driver (07742-0010100) or fabricate valve guide remover from an air-impact chisel. See Fig 1
. Using an air hammer and valve guide remover, drive valve guide .078" (2.0 mm) toward combustion chamber.CAUTION: DO NOT heat cylinder head using a torch or heat cylinder head warmer than 300°F (150°C). Excessive heat may loosen valve seats.
- Turn head over. Working from combustion chamber side of head, drive valve guide out toward camshaft side of head. If valve guide does not move, drill valve guide using a 5/16" drill bit and try again to drive out guide.
CAUTION:
Drill guides in extreme cases only. Cylinder head damage can occur if valve guide breaks.