LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 1993 >> Forward Control 7.4 N >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> 6.2L V8 Diesel - VIN [J] >> Overhaul >> Cylinder Head >> Pre-Chamber

Cylinder Head: Pre-Chamber

  1. Inspect pre-chamber for surface cracks. Replace pre-chamber if surface crack length exceeds 3/16" or if crack reaches combustion chamber sealing mark. To remove pre-chamber, insert small nylon punch through injector hole. Drive pre-chamber from cylinder head.
  2. To install pre-chamber, align pre-chamber with alignment notch in cylinder head. Using 1 1/4" (32 mm) socket and hammer, tap pre-chamber into bore.
  3. Measure pre-chamber installed height in 2 or more locations where pre-chamber seats against head gasket shield and sealing ring. Ensure pre-chamber is even with cylinder head or does not protrude from cylinder head more than .002" (.05 mm). Pre-chamber must not be recessed in cylinder head.
scientia non olet · About LEMON Manuals