CAR Exhaust valve

Exhaust valve: common defects and their signs

  1. Burning-out.
    • The engine cylinders operation is not stable.
    • Engine power decreases significantly.
    • Fuel consumption increases.
    • Engine vibrations are noticeable during its operation.
  2. Valve stem deformation.
    • Engine operation is accompanied with unusual sound.
    • Oil level in the system is constantly lowering.
    • More intense flow of exhaust gases comes out from the exhaust pipe during engine start.
  3. Jamming.
    • Engine power lowers.
    • Troubles during engine start.
    • Smoke of bluish colour comes from the exhaust pipe.
  4. Valve head destruction.
    • Engine operation is not stable.
    • Sharp and unusual noise for the car regularly occurs during engine operation.
    • Troubles occur during engine start.
    • Consumption of oil and fuel gets higher.

How to replace exhaust valve?

The exhaust valve is not repairable that is why it should be replaced if the part is broken down. It is recommended to replace the valve oil seals and install new sleeves together with valve replacement. Take into account that press-fitting of the sleeve requires accuracy and cautiousness. At improper press-fitting there is a risk to apply excessive force, which can lead to appearance of a crack in the cylinder head, causing expensive repair. The reversed situation is insufficiently tight press-fitting. In this case, the sleeve can just fall out from the mounting seat. In this regard, such jobs should be performed at a service station only.

It is better to entrust replacement of the exhaust valve of the car to service station specialists, as it is quite a complicated procedure which requires engine disassembling. Moreover, after replacement of the valve, it is mandatory to perform its setting. The valve seat is greased with a special abrasive paste, after this the valve is installed into the mounting seat and is bedding in by reciprocating motion till reaching needed effect.

Exhaust valve Information

Exhaust valve: Bestsellers

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  • Valve head diameter [mm]: 28
  • Valve stem diameter [mm]: 5,5
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FRECCIA Outlet valve
Article № : R4231/RCR
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BGA Outlet valve
Article № : V029429
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  • Length [mm]: 102,2
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BGA Outlet valve
Article № : V531011
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BGA Outlet valve
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BGA Outlet valve
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