In Reply to: Re: 8N Newbie, need advice posted by Bruce(OR) on September 07, 2020 at 07:48:45:
Plug gap is .025". Machine has front mounted distributor and conventional breaker point ignition. I've never had problems with AC Delco, Autolite or Champion spark plugs in any of my vehicles and equipment in the past. I want to believe that the AC Delco plugs in the machine now are good quality. After all, the engine starts pretty quickly and runs well. So I believe things are not too far gone, and with some care and attention it can be made better without an overhaul yet. My local NAPA dealer stocks many parts for this tractor so I will patronize them and try the NAPA 15W40 engine oil you suggested.