JOHN DEERE

David Seitz · Sep 20, 2014

WHY DOES MY JOHN DEERE 4320 BLOW OIL OUT THE ENGINE VENT TUBE

NY 986 · Sep 20, 2014

You are on an IH board but your issues plague all makes. Most likely a exhaust valve is not opening creating pressure in the cylinder which forces gases past the rings down to the oil pan where the path of least resistance is the vent tube. The valve may not be opening due to being stuck, bent rocker arm, loose rocker arm, or other rocker assembly related issue.

rustyfarmall · Sep 20, 2014

(quoted from post at 12:29:57 09/20/14) WHY DOES MY JOHN DEERE 4320 BLOW OIL OUT THE ENGINE VENT TUBE

Because the engine is worn out. A set of sleeves and pistons will cure it.

JOHN DEERE

David Seitz

New User

NY 986

Well-known Member

rustyfarmall

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