Exerpted from WPC bulletin p.19/20 Sept. 1995 as written by Ron Wenzel, Sidney, B.C., Canada Apparently the hemi Chryslers even to just 240 ci may have spin-on oil filters added. However it requires tapping of a large size hole, which many of us without a machine shop or such may not be able to do unless hired out. Basically one buys three items- a stamped flat plate adapter PN 2402103, a double ended threaded adapter PN 3671602, and gasket PN 3671314. (The gasket MAY be same one that comes with the old replaceable element filters .) A note with the article says the 3 parts mentioned are currently used on 318/360 engines. The hemi evidently has a cast seat or base that allows the filter to sit on, its seat parallel to the ground. There is a by pass notch in the cast housing that must be plugged since the spin-on has its own bypass valve. The 7/16 dia. hole in the cast housing that currently the long bolt goes into must be plugged at the bottom with a short 7/16-14UNC set screw and loctite so oil will not bypass the filter. Finally, and the most difficult, the upper portion of the housing that the 7/16 bolt initially goes thru must be drilled to 11/16 and tapped with a 3/4-16NF tap after removing the element guide bushing- which is pressed into the cast housing. This last operation allows the filter to spin onto the cast housing AND it must be tapped so the filter will seal against the gasket- perhaps one must try it to verify???? The NF hole must be concentric with the original hole so the new filter spins onto the original seat accurately. This is a must!! A parts manager I know said he installed a spin-on filter on his 62 318 wagon using only the 3 parts, no machining needed. And said I could use on my 277 also. I tried and had oil all over the floor, even finding a double thick gasket did not help. A couple months later a rebuild shop told me there was a fitting in the block that I needed to remove.... However by this time the car had been on the road with a new TP filter in the original housing, just like Walter originally planned. Hope the above helps those interested. IMHO, having changed insert filters since my 62 Plymouth 318 Savoy (Bought new in Spring of 63) once U know how to do it , leaks are not a problem. And with the few miles most of us drive, a change once a year is also not a problem? NAPA always has a filter too!!!!!!! Hey I have a stash of old car brochures, many foreign, many of which I drove 'back then' like a Goliath, Fiat 1100, Dyna Panhard, etc etc. Also some Moparz, I will check them out and post it here first as to price and availability. Stay tuned. Lars >>>>>>>56 Plymouth Sport Suburban V8 |