The stock Honda filter for these models is a jacketed filter assembly consisting of approximately 5 parts. The new filter adaptor will allow the replacement of the complete assembly with the self contained filter canisters that are ubiquitous in the automotive industry.
Using the proper wrench remove the oil filter bolt. Use a bucket to catch any oil that drips out of the filter housing. Remove the filter bolt, housing cover, spring, washer and oil filter.
Clean the surface of the housing and o-ring flange to prepare for installation of the filter adaptor.
Apply a small amount of high strength loctite (red) or equivalent to the threads of the filter adaptor. Start the threads by hand being careful not to cross-thread the adaptor. Snug the adaptor into place with a screwdriver (or similar tool) that will fit into the driver slot as shown. Torque to approximately 240 in-lbs. Do not over tighten.
Install the filter as you would normally. Make sure that the filter seal fits snugly against the oring flange. A properly fitting filter will have an outer diameter of 3.7 inches.
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