Case 900 Filter change question

I never got farther than the primary filter, because when I took it out and went to put the new filter in, the new filter simply slid over the filter post and went to the bottom of the cup. I couldn't see how this is right as shouldn't something push the filter up to the top of the case so that pressure is exerted on the filter to push against the cup plate (head)?

I looked at the old filter I took out and it was very similar to the new filter that I was trying to install. The filter has an inside diameter of about 1- 1/2" and simply falls to the bottom of the cup over the cup post.

I see that there is a spring and small washer (retainer) on the post near the bottom of the cup, but it is way smaller than the ID of the new (or old filter).

What am I missing or don't understand? Was I sold the wrong filter? Had someone before me put in the wrong filter?

I didn't proceed to the Second stage filter as I felt I should figure out what gives with the primary filter.

Any and all advice is appreciated.

Thanks!

One had two filter up high by the injectors and the one in front of the engine. Another system was one up high, washable down low by the pump and then the final in front of the engine. I think the inline pump had a different set up to. Have all my books packed away but i think what i did on the washable one was replaced it with 2 short sock type filters.
caseman-d

Do you think it's possible that someone took out the washable filter in the primary and replaced with a single sock type?

Any idea what filter the secondary filter on this system should be? What the parts store sold me definitely will not work!

I have seen pictures of 900's with the same system as mine and I have also seen pictures of 900's with the two cans up high to the back of the motor (like an 830). I think the filters the parts store sold me are for this type of system.

I need to find out where I can get filters that will actually work on my system. Would like to get filters back in!

Any idea when Case made this changeover?

I too have your fuel filter setup on my 1958 Case 801B diesel. This is my configuration:

1st stage -- A10557 Case PN ---[screen type filter] This is a washable/reusable type filter.

2nd stage-- A7627 Case PN I use WIX: 33511 with : OD = 2.903" ID = 1.085" Length: = 3.622"

3rd stage -- Case PN O9985AB1: I use a WIX 51006 Height: 5.007 Outer Diameter: 4.094 Inner Diameter: 0.553

I hope this helps.....

Yours also sounds like my 401 setup.

Screen primary filter same as Jim"s
Secondary element same as Jim"s

My tractor was missing the final self-contained filter at the front. After a lot of investigation, I ended up using a Baldwin BF7726 which I"m pretty sure is correct. I was able to find mounting brackets off a junked 401.

The primary filter cleans only the coarsest grit in order to protect your gear type primary fuel pump. The other two are much finer and protect the injector pump. When I bought my tractor, the primary screen filter was clogged with gum and was responsible for allowing me to buy the tractor for scrap if you understand what I am saying. I had to soak it for hours in acetone, alcohol, and carb. cleaner to open it up. I can"t remember if the screens are still available, seems like they are and cost a small fortune. I think you"re wise to get the filter situation corrected before you start running - people start pulling clogged filters off to get tractors running and there goes the pump and injectors.

Larry