Posted by The tractor vet on July 06, 2010 at 19:47:32 from (76.212.231.173):
In Reply to: 504 Farmall Specs? posted by 79fordblake on July 06, 2010 at 13:40:16:
Plugs gap at .025 points gap at .020 use LOW ASH 30 weight oil ONLY and this is one more of the I H gassers that require 93 octane gas Ing. timing is vary important also on this engine and should be checked and reset with each and every set of points. Now here is where ya have to know the s/n of the ENGINE to set the timing correctly. Engines before s/n 4484get set at 22 degrees BTDC, engines after 4484get set at 20 degrees BTDC at rated PTO RPM
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