Valve stem seals Euro 4 ROULANT brand, made in Taiwan

Responsible for the precise sealing of the valve stems.
This part prevents oil leakage into the combustion chamber.
Its proper functioning reduces oil consumption and prevents blue exhaust smoke.
The proper quality of the valve stem seals plays an important role in maintaining the Euro 4 emission standard and engine life.

Technical tip:
When replacing the Pride valve stem seal, be sure to use a special installation tool without damaging the seal edge, because the slightest scratch or warping of the seal edge will cause oil leakage into the cylinder and permanent blue engine smoke

Oil leak detection:
Symptoms:
Blue smoke during cold start or after releasing the gas
Reduction in engine oil level without apparent leakage
Oil soot on spark plugs and loss of combustion efficiency