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Home » How To Stop Oil Coming Out Of Valve Cover Breather

How To Stop Oil Coming Out Of Valve Cover Breather

In this discussion, we delve into the critical aspect of the PCV (Positive Crankcase Ventilation) valve system and the impact of engine breathers on oil leakage. It’s essential to highlight the significance of a properly functioning PCV valve and the repercussions of relying solely on breathers in an engine, especially in high-performance or racing motors.

A common issue faced by many enthusiasts is excessive oil discharge from engine breathers. While a PCV system does assist in managing oil, it’s not uncommon for oil to still find its way out through the breathers due to the internal oil circulation within the valve cover.

One prevalent oversight that contributes to this problem is the improper handling of grommets used in conjunction with breathers. Often, individuals resort to cutting the base of the grommet entirely, leaving it wide open for oil to escape freely. This leads to oil accumulation around the breathers, causing complications and increased oil leakage.

To rectify this, a simple yet effective solution involves utilizing a new grommet and strategically modifying it. Instead of cutting the entire base, the recommended approach is to compress the grommet and make two precise cuts on opposite sides, creating a baffle-like structure within the grommet. This alteration effectively impedes the direct flow of oil towards the breather, mitigating oil discharge significantly.

While executing this modification, it’s crucial to align the grommet in a manner that minimizes oil ejection into the breather. Ensuring the orientation of the grommet holes prevents an excessive oil surge into the breather, thereby reducing the potential oil buildup.

In practical terms, the process involves cutting two slots on the grommet, positioned in a way that maintains a central barrier. This modified grommet, when inserted correctly, serves as an effective barrier against excessive oil discharge.

Moreover, it’s imperative to emphasize the continued utilization of a PCV valve in conjunction with this modification. The PCV valve, when properly connected to the intake, helps maintain a negative pressure within the engine, significantly reducing the likelihood of gasket displacement and oil leaks.

To sum up, addressing oil discharge issues from engine breathers involves a combination of strategies: modifying grommets to create baffles and ensuring the correct orientation during installation. Coupled with the consistent use of a PCV valve, these measures can substantially alleviate oil leakage concerns, especially in high-performance engines.

For more insights and updates on engine maintenance tips, stay tuned for further developments and tips on optimizing engine performance. Your engine’s health matters, and these simple yet effective modifications can make a substantial difference in mitigating oil-related complications.

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