HIGH OIL CONSUMPTION
Overhead valve motors are a,pt to suffer high oil consumption due to the passage of an excessive quantity down the intake steins, assisted by suction. This trouble may often be alleviated by reducing the flow to the valve gear. Closing off the supply by fitting a restrictor, partly flattening the supply pipe, or reducing the engine oil pressure are methods which might be applied as found suitable". Worn valve guides and stems, excessive oil feed to the stem contacting end of the rockers, faulty valve seating®, insufficient tappet clearance, and weak valve springs are worthy of consideration as possible causes. It has been known for oil to leak down between tho valve guides and their bored location in the cylinder head. Sec that the valve cover is well vented.
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Evening Star, Issue 22573, 15 February 1937, Page 15
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132HIGH OIL CONSUMPTION Evening Star, Issue 22573, 15 February 1937, Page 15
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