Case 511-B-L Oil filter

I am trying to figure out how to paste the image of my housing into the message.

Three orifices (measured � 0.002"): one @ vertical top of tube 0.081". 5/16" down from top of tube and 180� apart 2 @ 0.093". These dimensions correspond to numbered drill bit sizes. The hole sizes are not critical. The total area of the 3 holes exceeds the cross-sectional area of the tube I.D. so they are used as directors, as opposed to orifices or restrictors, to saturate the top of the filter media.

There are a couple of different type housings, yours may have a bypass valve in it. The seal may be in the base of the housing or come with the filter and seat on the base above the threads like the one in the pix. Most major filter manufacturer�s make a suitable substitute filter. I use Napa 1104 most of the time, it comes with seal and will fits either of the base types I have.

Joe

The by-pass filter is a shunt system, typically 10-15% of the oil pump output passes through the filter and drops directly back into the sump. The rest of the oil pump output provides engine lubrication.

If you are using Case filter A36136, it has a "mason jar" external rolled thread. You should have a rubber seal in the housing that the filter seats on.

Does your hsg look similar to the pix? If the stem tube is missing the oil going to the filter is just dropping back into the sump w/o going through the filter media.

Joe