Sparkie, a couple simple filter designs I'v used that are tremendously better than "factory" was! Fist change was to use a 5 micron, paper water filter on the original filter base/cap by replacing the stud a 12" piece of all-thread.
I eventually used a 9" OD, cheaper Diesel truck air filter cartridge with a piece of all-thread through a couple 3/16" thick aluminum disc's I cut from scrap with the 1/4" inlet drilled/tapped for a 3/8" hose barb x 1/4" MNPT....It ran 3+ years without being cleaned with zero flow restriction noticed in my vacuum gauge I put in.
I also used a Luber Finer 750 metal cartridge oil filter by plugging one end with a rubber freeze plug and then used the rubber from a plug, drilled it our some and screwed in the 1/4" MNPT x 3/8" hose barb into the other end to expand/seal the center hole of the filter on the other end. You get far less restriction, MUCH longer service life, and will filter out much finer particles than factory filters.
FWIW, The Lubri-Finer is really easy to use as a filter, plus the metal casing makes it critter proof...(a mouse chewed holes into the air between the metal screen mesh)
Last edited by Rainman; 10/26/14 11:26 AM.
