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I am replacing my ‘34 Packard oil filter that Burr Ripley had reproduced many years ago, made of a resin that had cracked and the spin on filter inside the canister had to have the pressure line soldered to one end of the filter! I recently purchased a new replacement filter from R & A Engineering and it is very heavy but my main concern is that it does not seem to have any type of restriction or check valve as the one that Burr had made (a steel ball in a fitting on the pressure end)! The one from R & A has the 90 degree elbow screwed in on the pressure end or lower end of the canister from the oil pump and the oil filter canister fills with oil & then goes into the holes surrounding the threaded hole in the center of the spin on before reaching the oil cooler! My question is does anyone have any experience with this particular oil filter & does the spin on filter serve as the check valve since oil has to fill around the spin on before reaching the oil cooler or is a check valve necessary on this type filter?

Yes, I'm familiar with the 1934 Eight full pressure oiling and filter system, and the Burr Ripley filter kit. The factory oil pressure relief valve assembly provides for the filter.

The original Purolater L6 filter did not itself contain a check relief valve. The Packard engineers that designed the new for 1934 full flow oiling and filter system anticipated that a filter might plug or restrict flow and built protection into the oiling system. The check valve to redirect the oil flow directly to the galleries should the filter become plugged or restricted is the second of the two relief valves in your oil pressure relief valve assembly on the driver side of the engine block. A second relief valve in the filter for the same purpose is not required.

On your relief valve assembly, the horizontally oriented valve under the large acorn-shaped nut at the rear is for pump over pressure relief; the vertically oriented valve under the smaller hex cap on the top of the unit is the one for the filter.

Thank you very much for the information and the pressure line is at the bottom of the filter with the 90 degree brass fitting correct?