Case VAC Filter Question

[BrianX128 109]

Got a question for everyone, though I'm not sure how familiar a topic this is going to be. I have an old case VAC (1952) that my grandpa had at some point modified to take the same oil filter that both of his trucks took. Which, on one hand probably filters better and I get having a stock of the same thing on the shelf. The only thing is, I don't think he realized that the factory filter was meant to restrict flow to retain oil pressure (I believe) from what I've seen online. This was what the factory filter base looked like:

 

 

This is what I've got:

 

It does make 5-10 psi of oil pressure still, but that just doesn't seem right. I'm 99% sure that is because this is a full flow oil filter. I'm wondering if there is a bypass style filter that has a built in flow restriction like a baldwin B164 (which is the wrong threads) that I could put on here that would slow the flow of things. Engine has 120psi compression on all 4 cylinders and runs great. I've been using it lately to brush hog a big field behind my house, really the only "work" it's done in 20 years short of drive around the property with cart loads of firewood. Just don't want to be hurting it since it's doing real work now.

[pfrederi 18,812]

12psi is acceptable to Case and is about what mine used to run.  5 psi is bit low.  Your base looks correct just mounted upside down and I guess he removed the tube.  You could try fabricating a tube or pick up a used base with tube (Part# base and tube is VT 4147)  (about $40 on Ebay but check elsewhere..

 

I had engine overhauled a couple years ago.  as part of rebuild Rusty Acres (Don Livingston) provided an oil pump kit from a Massy165 (continental engine)  She now has 40 psi with the tube and Wix 57011 filter.

Edited September 5 by pfrederi

[gwest_ca-(File Mod) 11,609]

In the early 70's Buick had a problem with an oil light coming on or flashing at a hot idle. Complete engine tear down and the replacement of related parts did not correct it. In the end GM engineering came up with a recalibrated oil pressure switch and that fixed it. They determined 2 psi at the furthermost port from the oil pump was adequate for long engine life. The oil pump just delivers the oil to the required locations and the oil then has to do it's job. It is not the pressure that lubricates the bearings. Makes sense to me now that I see the same components lubricated by oil delivered by the splash system as long as the oil is kept clean.

We never did have a Buick engine failure in 20 years and some had very high mileage so guess they were correct.

[squonk 44,162]

1 hour ago, pfrederi said:

12psi is acceptable to Case and is about what mine used to run.  5 psi is bit low.  Your base looks correct just mounted upside down and I guess he removed the tube.  You could try fabricating a tube or pick up a used base with tube (Part# base and tube is VT 4147)  (about $40 on Ebay but check elsewhere..

 

I had engine overhauled a couple years ago.  as part of rebuild Rusty Acres (Don Livingston) provided an oil pump kit from a Massy165 (continental engine)  She now has 40 psi with the tube and Wix 57011 filter.

That used to be a Napa 1101 used on the old Allis B's. The new Napa # is 7011 ( I don't have any idea how I remembered the old #. It's been over 20 yrs. since I worked there and my Dad died and we sold his B before I left!) That B hardly moved the oil pressure gauge and it ran like a watch.

Edited September 5 by squonk

[ri702bill 9,696]

That inverted filter reminds me of the old Mopar Slant Six. Unless you punctured the highest point (the bottom) of the installed old filter to let it drain, you got an oil bath getting the filter up & off the center tube....

Edited September 5 by ri702bill

[BrianX128 109]

I know those filter bases may look the same, but the filters are completely different. The one that is on mine looks like this:

 

 

There's no "mason jar" style threads on the outer edge that I've seen on some other older tractors that looks similar to yours. There's also no inside part that would stick out from the middle of the base. It's just a big threaded center just like on an old truck. I don't think it's meant to be like this, if it wasn't such a bear to get the filter to not leak at the gasket mating surface I'd take it off and get a picture. 

 

Here's a better one of the adapter I'm 100% sure he braised and made himself. 

 

Edited September 5 by BrianX128