Oil Canister Filter -> Screw-On Filter Adaptor Questions

[AcampoDave]

I have been happy with the Transdapt. At first, I too was under the false impression that the little tin nut was responsible for torquing the disc to create the seal. Consequently, it was leaking, and i had enough. I bought a new Transdapt O-ring from Summit and resolved to figure it out.

The center hole in the disc is not threaded and after weighing things over I came to the conclusion that what I needed to do was crank the filter down quite tightly, using it to firmly sandwich the new O-ring between the disc and the block.

Sure enough, cranking it down with more force than one would normally use on a more modern motor that was initially designed for a spin on solved the leaking.

As I lied there on the floor that day, thinking about the "tin" nut, I could only conclude that it keeps the adapter disc from falling off and splashing down into the drain pan when one removes the filter. I now have a few O-rings on reserve for just in case, but it's not leaking and hasn't been since I figured it out.

The instructions call for a Ford filter with a built in bypass and I have never considered deviating from the recommended filter. There is no reason to since they really don't cost any more than a non-bypass filter and I assume the results of attempting it would be less than satisfactory.

Edit: BTW, At present I am using the Wix cross-referenced version of whatever filter Transdapt recommends