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Old 09-06-2019, 10:01 AM   #7
DavidG
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Join Date: May 2010
Location: southeastern Michigan
Posts: 10,101
Default Re: Ford engine factory break in process

The two photos show two very different run-in procedures. The first photo (coincidentally Job #1 V8 engine at the Ford of Canada East Windsor, Ontario plant in April, 1932) shows the run-in with water being circulated through the engine. The second photo, taken at the Dearborn Engine Plant during the '34 model year, shows the run-in without water being used. Presumably the former method permitted a much longer run-in cycle.
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