Drive Chain and Sprockets
WARNING: This page is about a different car, the 2007 Isuzu i-370, 2007 GMC Canyon, and 2007 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
- Clean the drive chain (120), the drive sprocket (123) and the front output shaft (127) in cleaning solvent and air dry.
- Inspect the drive chain (120) for the following conditions:
- Loose link pins
- Binding or stiff links
- Debris embedded in the links
- Worn teeth surfaces
- Stretched chain - interference marks on the case half
- Replace the chain if any of the above conditions are found.
- Inspect the driven sprocket on the front output shaft (127) and the drive sprocket (123) for the following conditions:
- Chipped or cracked teeth
- Excessively worn gear surfaces
Slight wear marks are normal.
- Debris embedded in the root of the teeth
- Inspect the drive sprocket (123) for the following conditions:
- 2/4 Synchronizer engagement teeth for chipping
- 2/4 Synchronizer engagement teeth for excessive wear
- Inspect the drive sprocket bushing for the following conditions:
- Excessive wear
- Scoring
- Inspect the rear bearing journal on the front output shaft for the following conditions:
- Scoring
- Pitting
- Brinelling
- Excessive wear
- Inspect the threads on the front output shaft for damage.
- Inspect the splines on the front output shaft for wear, caused by a loose flange yoke.
- Replace the sprockets if any of the above conditions are found. The chain and sprockets may be replaced separately.