Engine Flywheel Cleaning and Inspection (6.2L LS3)
- Clean the flex plate in solvent.
- Dry the flex plate with compressed air.
- Inspect the automatic transmission flex plate for the following conditions:
- Loose or missing bolts/nuts (1, 2)
- Damaged splines (3)
- Damaged ring gear teeth (4)
- Stress cracks around the flex plate-to-crankshaft bolt hole locations
- Inspect the manual transmission flywheel for the following conditions:
- Pitted surface (1)
- Grooved or scored surface (2)
- Rusted surface (3)
- Damaged ring gear teeth (4)
- Loose or improperly positioned ring gear
The ring gear has an interference fit onto the flywheel and should be positioned completely against the flange of the flywheel.
- Missing, bent or damaged pressure plate locating pins
The 2 locating pins are installed into the flywheel and spaced 170 degrees apart to ensure proper orientation of the clutch pressure plate to the engine flywheel during assembly.
NOTE:
In order to maintain the proper component balance, contact surface taper, and heat transfer, manual transmission flywheels are NOT to be machined.