WGM Stem Seal Replacement Service 2.0 Turbo Z20LEH
Common issue on the GM Z20LET / LER / LEL / LEH 2.0 Turbo / VXR Engines. The standard stem seals (typically exhaust side) pop off allowing oil to bypass down the valve guide.
This causes high oil consumption and smoking issues, Symptoms include: smoke on start up, smoke once left idling for few mintues, noticed when revved / pulling away from traffic lights etc. Smoke is emitted from the exhaust and typically of a blue colour.
Modified stem seals which include built in retailers in form of a valve spring seats eliminate possibility of a repeating issue
This in-house only service includes:
- Replacement of all 16 Stem seals
- New Rocker cover gasket
- Option to install uprated Valve springs
- Option to have Cambelt / Water pump replaced
- While you wait service is offered