Inspect the timing chain guides-(1, 4, 6) forcracking or wear.Replace the timing chain guides if wear exceeds1.12-mm (0.045-in) depth on the chain guidesurface.Inspect the timing chain tensioner shoe for wear.Replace the timing chain tensioner shoe if wear exceeds1.12-mm (0.045-in) depth on the chain guidesurface.Inspect the timing chain-(2) andactuators-(3, 8) for wear.Inspect the camshaft actuator faces for signs ofmovement.Inspect the camshaft actuator teeth and chain for signs ofexcessive wear, chipping, or seizure of the timing chainlinks.Inspect the oil nozzle body-(5) for collapse orcracks at the bolt boss. Discard and replace the oil nozzle body ifit is damaged.Verify oil nozzle oil flow with compressed air.Inspect the timing chain tensioner-(7) for thescoring or free movement.Inspect the timing chain tensioner washer andO-ring for damage. If damaged, replace the timing chaintensioner.
Drive and Driven Sprocket, Drive Link, and Park Pawl Removal (6T40/45/50) Automatic Transmission Unit
Drive and Driven Sprocket, Drive Link, and Park Pawl RemovalCalloutComponent Name1Drive Link Lube Scoop2Drive Link Lube Scoop Seals3Drive Link Lube Fluid Seal4Driven Sprocket Assembly, Drive Sprocket and Park Gear Assembly and Drive LinkProcedureThe drive link, drive and driven sprocket assemblies m ...