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BILL WILLIAMSON · 08-07-2015, 02:13 PM

#4 cylinder on Datsun 210's would get SO hot, valve seats fell out & usually scored #4 piston.
Temp gauges installed in Model A's should be in the rear of the head, to monitor the HOTTEST SPOT, "might" save an engine! ! Study the rear of a head for the SPOT to drill, in the left side, about 2 1/2" or so, from the rear of the head.
Chief ALWAYS located them there & he knew his SHIT, & he taught me all his TRICKS, that worked well.
Bill W.

08-07-2015, 02:13 PM	#8
BILL WILLIAMSON Senior Member Join Date: Dec 2010 Location: FRESNO, CA Posts: 12,560	Re: Cooling System Design Flaw #4 cylinder on Datsun 210's would get SO hot, valve seats fell out & usually scored #4 piston. Temp gauges installed in Model A's should be in the rear of the head, to monitor the HOTTEST SPOT, "might" save an engine! ! Study the rear of a head for the SPOT to drill, in the left side, about 2 1/2" or so, from the rear of the head. Chief ALWAYS located them there & he knew his SHIT, & he taught me all his TRICKS, that worked well. Bill W. __________________ "THE ASSISTANT GURU OF STUFF"