Drive Chain and Sprockets

WARNING: This page is about a different variant/trim than selected.

Fig 1: View Of Drive Chain, Drive Sprocket, Snubber & Driven Sprocket

Courtesy of GENERAL MOTORS CORP.

Clean the drive chain (109), drive sprocket (107), snubber (3) and driven sprocket (115) in cleaning solvent and air dry.
Inspect the drive chain (109) for the following conditions:
- Loose link pins
- Binding or stiff links
- Debris embedded in the links
- Worn teeth surfaces
Replace the chain if any of the above conditions are found.
Inspect the driven sprocket (115) and the drive sprocket (107) for the following conditions:
- Chipped teeth
- Excessively worn gear surfaces
  Slight wear marks are normal.
- Debris embedded in the root of the teeth
Inspect the drive sprocket (107) and bushing (105) for the following conditions:
- Excessive wear
- Scoring
Replace the sprockets if any of the above conditions are found. The chain and sprockets may be replaced separately.
Inspect the snubber (3) for an excessively worn or gouged lining.
Slight wear marks are normal.
Inspect the chain and sprockets for the cause of the wear. Replace as required.

Fig 2: Removing Bushing From Sprocket Using J 46266

Courtesy of GENERAL MOTORS CORP.

If the bushing in the sprocket (107) is damaged, it can be replaced using the J 46266 and a press to remove the bushing. See Special Tools .
Clean the bushing bore with solvent.
Inspect the bushing bore for nicks or burrs.

Fig 3: View Of Sprocket Bushing

Courtesy of GENERAL MOTORS CORP.

Fig 4: Press In Bushing Using J 46266

Courtesy of GENERAL MOTORS CORP.

Use the other side of the J 46266 and press in the NEW bushing until the tool meets the sprocket. See Special Tools .