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nick c · 11-02-2019, 07:49 AM

Restorer magazine jan/feb 1998, pg 22, one full written page on busted out hole in valve chamber. The hole must be higher than the first dam in order for the oil to build up and run back over the first dam to get to the center and rear main. The article states that most likely it was busted out to facilitate replacing timing gear. When I rebuilt my engine I followed the instructions, used a piece of flat metal 1/8 x 1 x 2 drilled one hole 1/4" it, and one hole the web of busted out area, fastened to web with a 1/4" bolt and jb weld, just above the level of the first dam. Then drilled another hole below the top of the new dam, 5/16 diameter to feed oil to the timing gear.

11-02-2019, 07:49 AM	#15
nick c Senior Member Join Date: Aug 2010 Posts: 260	Re: Mysterious hole in valve chamber? Restorer magazine jan/feb 1998, pg 22, one full written page on busted out hole in valve chamber. The hole must be higher than the first dam in order for the oil to build up and run back over the first dam to get to the center and rear main. The article states that most likely it was busted out to facilitate replacing timing gear. When I rebuilt my engine I followed the instructions, used a piece of flat metal 1/8 x 1 x 2 drilled one hole 1/4" it, and one hole the web of busted out area, fastened to web with a 1/4" bolt and jb weld, just above the level of the first dam. Then drilled another hole below the top of the new dam, 5/16 diameter to feed oil to the timing gear.