In Reply to: 8n side mount spark plug wire order posted by Mike on February 27, 2019 at 19:31:28:
The firing order on all Ford Tractors is 1, 2, 4, 3 regardless if front mount or angle mount distributor, with #1cylinder at the front most of engine nearest the radiator. As stated, you must set the timing first. Get out your original Operator's Manual or I&T FO-4 Manual and follow the timing procedure as outlined in them. 8N timing on a side mount is 4° BTDC and the NAA and the 600 Series is 8° BTDC, and the 800 Series is 5° BTDC. Here's the page from the 600/800 Manual but procedure is the same on all.
FORD NAA/600/800 TIMING PROCEDURE:
FORD 8N TRACTOR ESSENTIAL OWNER/OPERATOR/PARTS/SERVCE MANUALS: