Buick Encore: Gear Tooth Contact Patterns
NOTE: This is GENERAL information. This article is not intended to be specific to any unique situation or individual vehicle configuration. For model-specific information see appropriate articles where available.
INSPECTION
NOTE: This is GENERAL information. This article is not intended to be specific to any unique situation or individual vehicle configuration. For model-specific information see appropriate articles where available.
Wipe lubricant from internal parts. Rotate gears and inspect for wear or damage. Mount dial indicator to housing and check backlash at several points around ring gear. Backlash must be within specification at all points. If no defects are found, check gear tooth pattern contact.
NOTE: Drive pattern should be well centered on ring gear teeth. Coast pattern should be centered, but may be slightly toward toe of ring gear teeth.
GEAR TOOTH CONTACT PATTERN
NOTE: This is GENERAL information. This article is not intended to be specific to any unique situation or individual vehicle configuration. For model-specific information see appropriate articles where available.
- Paint ring gear teeth with marking compound. Wrap cloth or rope around drive pinion flange to act as brake. Rotate gear until clear contact pattern is obtained.
- Contact pattern will indicate whether correct pinion bearing mounting shim has been installed and if drive gear backlash has been set properly. Backlash between drive gear pinion must be maintained within specified limits until correct tooth pattern is obtained.
ADJUSTMENTS
NOTE: This is GENERAL information. This article is not intended to be specific to any unique situation or individual vehicle configuration. For model-specific information see appropriate articles where available.
GEAR BACKLASH & PINION SHIM CHANGES
NOTE: This is GENERAL information. This article is not intended to be specific to any unique situation or individual vehicle configuration. For model-specific information see appropriate articles where available.
- With no change in backlash, moving pinion further from ring gear moves drive pattern toward heel and top of tooth, and moves coast pattern toward toe and top of tooth.
- With no change in backlash, moving pinion closer to ring gear moves drive pattern toward toe and bottom of tooth, and moves coast pattern toward heel and bottom of tooth.
- With no change in pinion shim thickness, an increase in backlash moves
ring gear further from pinion.
Both drive and coast patterns move toward heel and top of tooth.
- With no change in pinion shim thickness, a decrease in backlash moves
ring gear closer to pinion gear.
Both drive and coast patterns move toward toe and bottom of tooth.
READ NEXT:
General Cooling System Service
This article is generic in nature and all information does not apply to all
vehicles including those without a
liquid cooling system. For vehicle specific information, see the appropriate
articles i
Manual Transmission Trouble Shooting
NOTE: This is GENERAL information. This article is not intended to
be specific to any
unique situation or individual vehicle configuration. For model-specific
information see appropriate articles whe
Parasitic Load Explanation & Test Procedures
NOTE: This is GENERAL information. This article is not intended to
be specific to any
unique situation or individual vehicle configuration. For model-specific
information see appropriate articles whe
SEE MORE:
Diagnostic information and procedures
Specifications
FASTENER TIGHTENING SPECIFICATIONS
DIAGNOSTIC INFORMATION AND PROCEDURES
SYMPTOMS - ENGINE EXHAUST
Review the exhaust system description in order to familiarize yourself
with the exhaust system
components and the intended function of the components. Refer to Exhaust
System De
Exterior Trim- Repair instructions
Body side upper front applique replacement
Fig. 1: Body Side Upper Front Applique
Body Side Upper Front Applique Replacement
FRONT SIDE DOOR WINDOW FRAME REAR APPLIQUE REPLACEMENT
Stripes or Decals
The stripes and decals adhere to a painted surface using pressure sensitive
adhesive.
The use
