In Reply to: 8N serial number posted by Ward on October 30, 2017 at 22:38:24:
Welcome to the wonderful world of Ford N-Series Tractors. You have come to the right place. You will find much info in our HOW-TO’s; MANUALS; and HISTORY forums as well as in the archives. As far as the serial number goes, it only identifies what year the block was cast, more notably on 8Ns with the engine casting date code on the starter pocket. FORD used the letter "I" to designate numeral #1, lower case "b" for numeral #6 and inverted for numeral #9 -see bulletin. The important thing is to recognize if it has a front mount distributor or angle (side) mount distributor; generator/voltage regulator with 6-volt/positive ground system or has been converted to 12 volts and if so if done correctly. Originally the STAR (*) symbol designated steel cylinder liners/sleeves on all FORD engines. Mid-8N production saw the change being made to cast iron sleeves and then the s/n symbols were changed to the (◊) diamond symbol. They don’t make and sell steel sleeves anymore and chances are your engine may have been rebuilt at one time and cast iron sleeves inserted anyway, so don’t assume anything. If a rebuild is in order, do not buy any parts until block is stripped naked and you see what exactly is going to be needed. Cast iron sleeves will require block to be bored out larger. If you are new to tractors, Ford Tractors especially, and you don’t already have these, get yourself the essential manuals every N-Owner needs. Also, go to John Smiths’ site for more info as well –SEE LINK.
FORD ENGINE BLOCK SERIAL NUMBER STAMPS:
FORD N-SERIES TRACTOR ESSENTIAL OWNER’S MANUALS: