Re: Filter Cartridge or Sock?

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Posted by Clint Dixon [] on Saturday, September 02, 2023 at 19:38:32 :

In Reply to: Filter Cartridge or Sock? posted by Marty [] on Wednesday, August 30, 2023 at 22:55:27 :

The following does not entirely relate to your question, or my comments below in this current thread, but I think it deserved a repeat as I originally posted it back in 2010, before I switched to the Baldwin JC filter cartridge.

Here it is as it originally appeared:

Paul brings up a good point about terminology. When we discus oil filtration systems for our old trucks, it is very easy to quickly find ourselves comparing apples to oranges. This us understandable when one considers that not all of our Dodges, not even those of the same model or model year, were equipped with the same style of filtration system. We may find ourselves trying to compare filtration systems from different companies as these systems were not designed in-house at Dodge, but were supplied by outside vendors. I admit that I have contributed to the confusion, as I do not always use the correct terminology. Some of the names we (I) use tend to become kind of generic whether out of convenience or simple ignorance. When in doubt, I try to go back to the parts literature as a basis to start from.

A quick look at the factory parts lists show that there were a few different filtration systems used during the short ten years between the 1946 through 1956. In comparing these unique systems, one finds that there were differences in the filter container (what I have been referring to as “housing” and what Paul referred to as “canister”). The parts lists actually refer to this part as “BODY – Service in kit assy”. Each body required unique mounting brackets and straps (or “clamps” depending upon which parts lists one looks in). Each body used a different style of cover (what I have been referring to as “housing cap” and “lid”). Each system used a different style of filter (what I have been referring to as “filter”, “filter element”, and “element” and what Paul referred to as “filter element”. Most of the parts lists refer to this part as “CARTRIDGE, Oil Filter, Assembly”.

Here is where it gets confusing, especially when one has numerous parts lists to consult. For unknown reasons the technical writers of the parts lists did not always follow uniform naming conventions. On some pages and in some images, the lists refer to the “cartridge” as “replaceable element”. On other pages and images, the simple term “filter” is used. I guess I am in good company when it comes to using generic terms. In any case, the individual parts making up any one filtration system – Body, Brackets, Straps, Cover, Tubes (supply lines), Cartridge, etc., were designed to work together as a unit and were all unique to the system developed by the company who manufactured and marketed it.

I am familiar with only one style, or make, of filtration system that was used on our trucks. For whatever reason, all that I have owned have shared this one system. Paul talks about another system that I am completely unfamiliar with, the Military Junior. I have never owned a truck with one of these systems. Paul has apparently owned several. I try to stick to what I know and try not to comment on what I am unfamiliar with. I think for this thread, however, it is fair to mention some of these that I am less than familiar with. For these, I will share only what I find in the parts lists. I will start with what I am least familiar with and work up to the system that all of my trucks have been equipped with.

There was a filtration system used on some of our trucks that required most of the parts be replaced when the oil was changed. This is shown in some parts lists as: “FILTER, MoPar Oil, Assembly (Non-Cleanable Type)”. In other lists it is shown as “FILTER (sealed can type)”. The unit was sealed as an assembly – Body, Cover, and Cartridge. The oil supply lines had to be unscrewed from the assembly and the assembly unbolted from the Brackets and Straps, discarded, and replaced as a unit during changing of the engine oil. I have seen very little discussion of this particular filtration system.

Another filtration system used on some of our trucks was known as the “Cleanable Type”. It employed a replaceable cartridge that resembled a large can of PorknBeans. The cartridge was all steel on the outside. The sides were perforated with many small holes, and the cartridge had a through hole from top to bottom. There appears to have been several variations of this system with different sizes of cartridges employed. I believe the system that Paul is most familiar with (Military Junior) used this type of cartridge. I usually refer to all of these hard cylindrical metallic cartridges as “canister type filters”, because to me, they resemble a small can or canister. Some of these systems used a center stem (vertical tube) in the center of the body that had an umbrella shaped bell around the stem a couple inches above the bottom of the body. This bell held the cartridge up off the bottom of the body in order to create a cavity below for the sediment to collect. Some of these systems employed a spring between the cover and cartridge to force the cartridge down to the bell. The cartridge usually sealed tight to the stem in the center of the body with grommets at both the top and bottom of the cartridge. In some of the versions, the cartridge did not fit tight in the bore of the body. Oil entered into the body on the side near the cover and exited the body on the underside. Parts lists show these types of systems as being produced by Purolator. Motor Improvements is also shown as being a supplier. I believe their cartridges were of metallic perforated can shape also.

The filtration system that I am most familiar with was also known as a “Cleanable Type”. It employed a replaceable cartridge that resembled a roll of toilet paper covered with a sock. Most of us refer to these cartridges as “sock type filters”. These cartridges sealed to the bore of the body and to the very top of the stem located in the center of the body. Unlike the “canister type” they did not seal to the bottom of the stem and the stem did not employ any umbrella shaped bell stop anywhere along its length. The cover employed a semispherical shaped perforated dome to press the cartridge down and inward tight against the center stem of body. No spring was used. Oil entered into the body at its underside and exited on the side near the cover. Parts lists show these systems as being produced by DeLuxe Clear Oil.

Something I have never mentioned before, for fear of confusing the issue even more, is that some competitors of DeLuxe produced versions of their own cartridges to work in place of, or to improve upon, the original “sock type filters” in the DeLuxe Clear Oil systems. Some of these used a “sock type filter” of an entirely different design that actually did seal to the bottom of the center stem. Some were smaller in overall diameter and did not seal to the interior bore of the body. Some required a conversion kit and some replaced the “sock type filter” with a “canister type”. Some of these companies were designing replacement cartridges with the intent of capturing the sediment in the cartridge and not letting it settle to the bottom of the DeLuxe body sump where it had to be cleaned out by hand. Along with the confusion caused by these orphan specialized replacement cartridges is the problem that many times former owners simply installed whatever happened to fit the bore of the body. We open the cover on the filtration system on a truck we recently purchased and believe what we find inside to be correct. This is not always the case.

Along with the problems of the terminology we use and the chance that we begin to compare apples to oranges, comes the inherent Internet forum problem where threads start out on one subject and evolve to another, sometimes related, sometimes completely unrelated, subject.

Olgraybeard asked for help in finding a “canister oil filter”. From his description, I believe he was asking for a hard metallic perforated can shaped cartridge. I don’t believe we succeeded in providing him much help. Instead, the topic turned to NAPA #1011 sock type oil filter cartridges.

So, questions that developed along the course of the thread remain. We know that cartridges produced for Wix and sold by various suppliers under their own number (i.e.: NAPA 1011) are currently being produced by various vendors, some located in countries other than the U.S., and most of these are oversized in diameter. We also know that several individuals from the Power-Wagon community have been in contact with representatives at Wix over the past few years and that Wix does not sell enough of these cartridges to see it as a problem needing their attention. We also know that Vintage Power Wagons used to sell the very same Wix cartridge and now sells a cartridge from another application that is also close but not quite correct. Word has it that they are also looking into the problem.

In answer to Paul’s concern, I do not have faith in the system. I believe we eventually will not be able to by a new replacement sock type cartridge for our DeLuxe filtration systems. For now, I am reluctantly willing to use a bigger hammer or a piece of baler twine to coax the available cartridges into position.

In answer to Gmharris’s question, I am not sure whether the NAPA 1011 is the most suitable choice at this time. I have not tried the Baldwin JC 405 or the IH offering from Vintage for comparison. I actually do like the current Wix supplied, overseas produced, NAPA 1011 better than the versions from several years ago even if they fit tight. They still are very easy to remove from the body when changing oil, so the oversize seems to come into play only upon installation. I believe the current design without the steel plate and grommet is closest to the original DeLuxe design.

Attached here is an image taken from the 1954 MoPar Parts List for Dodge Power Wagon, #D-14474. It shows a sock type cartridge having no rubber grommet at the top. The cartridge seal to the center stem of the body near the top of the stem. Pressure from the dome shaped piece on the underside of the cover forces the fabric folds of the cartridge tight against the stem.

The style of cartridge is reminiscent of the cartridges I was buying back in the early 1980’s. I believe they were Hastings. Sometime in the 1980’s, I switched to the NAPA 1011 when the old auto store I had shopped at closed. I never really liked the rubber grommet on the old NAPA 1011 cartridges. I never found one that fit really tight to the center stem of the body. I believe the newer NAPA 1011 filters fit tighter with their fabric design and are closer to the original design.

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