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Old 05-31-2021, 05:24 PM   #10
ursus
Senior Member
 
Join Date: May 2010
Location: Oregon
Posts: 1,381
Default Re: NO Oil Return Block History

No pictures as my engine is all buttoned up. My notes from the rebuild show two 11/16 inch holes in the floor of the valve chamber, in the middle of the area between the fore and aft cylinder pairs (1,2 and 3,4) and the adjacent valve guides. the two holes probably flow as much oil as the Model A oil return pipe. Maybe somebody has a photo?
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