Valve Stem Seal : A small rubber piece that is installed at the base of the intake valve inside the engine head, and it works to prevent engine oil from leaking into the combustion chamber through the valve stem.
Plov skins specifications:
Country of Origin: Japan
Product Brand: Mitsubishi
Product number: MD307342
Compatible Models: Mitsubishi Galant (2001-2013)
Mitsubishi Grandis
Mitsubishi Space Wagon
Mitsubishi Pajero
✅ Main function:
- Tightly seal the intake valve stem area.
- Prevent engine oil from leaking into the intake tract and combustion chamber.
- Contribute to reducing oil consumption and emissions.
- Ensures proper lubrication of valves without excessive leakage.
⚙️ Technical specifications:
- Location: In the engine head, around the intake valve stem.
- Material: Heat and oil resistant rubber with inner metal core for secure fit.
- Number: One per intake valve.
- Replacement: Requires disassembly of the engine head or valve system.
🛠️ Signs of damaged intake valve cover:
- Blue smoke coming from the exhaust, especially when starting.
- Increased engine oil consumption.
- Carbon deposits on spark plugs.
- Poor engine performance or hesitation during operation.
🔧 Benefits when replacing:
- Reduce blue smoke emissions.
- Reduce engine oil consumption.
- Improve combustion efficiency inside the engine.
- Protects exhaust system and spark plugs from contamination.
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