Changing the oil filter on the Ford 8N tractor is not like changing the oil filter on an automobile. The filter is a cartridge that sits inside of a canister. This differs from the standard all-in-one filter used on modern automobiles. The Ford 8N is actually easier to change the filter because it is on the side of the engine and not tucked underneath the engine. This limits the amount of time you must be under the tractor.
Place a drain pan capable of holding five quarts of oil under the oil pan drain plug. The drain plug is a large bolt with a square head on it. Open the drain by turning the bolt counter clockwise with an adjustable wrench. Drain all of the oil into the bucket. Place the drain plug back into the oil pan and secure it with the adjustable wrench.
Locate the oil filter canister on the left side of the engine and remove the oil canister cap with an adjustable wrench. The oil filter canister is located directly behind the alternator.
Locate the thin metal handle on the filter cartridge and lift the cartridge out of the filter canister. Discard the old filter.
Place a towel into the filter canister and soak up the oil left inside of the canister.
Place the new oil filter cartridge into the oil filter canister with the handle facing upward.
Pull the gasket off the canister cap and place a new one onto the cap. The gasket comes with the filter cartridge. Rub a small amount of oil on the gasket to lubricate it.
Place the canister cap onto the oil filter canister and secure it into place with the adjustable wrench.
Remove the oil breather cap from the breather tube that protrudes from the oil pan. The breather cap is positioned below the oil filter canister. Place six quarts of 10W40 oil into the oil breather tube. Place the breather cap back onto the tube once completed. To avoid spilling oil, place an oil funnel into the hole and drain the oil through the funnel.
