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Breather assembly question

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Old Oct 16, 2020 | 12:41 PM
  #11  
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Originally Posted by twincam10353
Gentlemen, I have read about this a few times on these forums. Can anyone spell this process out in layman terms, and explain what it accomplishes? Is there a YouTube video or write-up on this?
Under the breather, in the rocker support plate, there's are 2 oil return holes. They're too small from the factory (especially if you've done performance upgrades to the engine), and cause oil to pool, and eventually get blown out the breather holes in the heads. Drilling them larger, allows the oil to drain back quickly enough to prevent that from happening.




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Old Oct 17, 2020 | 06:31 AM
  #12  
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Exactly ^^^^^^^
 
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