Hydraulic filter issue

[673moto]

Not sure where to post this so I put it here for visibility.
I have a bobcat that has a stuck hydraulic filter... and I mean stuck!
With a large wrench I was able to turn the filter but instead of coming off, the outer casing is spinning and the inner filter is stuck.
I don’t want to do the screwdriver trick yet since there’s not much room around it... and I’m worried that will destroy the filter.
Anybody ever had this happen?
Any ideas?
Edit: it’s a 2004 t180

 

[Nige]

I don’t want to do the screwdriver trick yet since there’s not much room around it... and I’m worried that will destroy the filter.

You want the filter off to install a replacemnt. What difference does it make if you destroy it in the process..?

 

[673moto]

You want the filter off to install a replacemnt. What difference does it make if you destroy it in the process..?

True... it’s just always a PITA doing it that way

 

[MarshallPowerGen]

I'd be going after it with a strap/chain wrench socket before punching any holes in it.

Don't know if that one will continue to drain the tank when opened up, but that could be a real big mess to clean up if it still won't come loose after hammering a screwdriver in.

 

[Nige]

If the outside is turning and the inside isn’t then I can’t see a strap/chain wrench working.

 

[JD955SC]

Take the mount itself off. It’s easier when you can clamp the mount in a vise in the open to work on it. Probably end up having to split the can with some hammer and chisel work to get it off

 

[Tinkerer]

Typical result of over-tighting the filter. Like JD655SC suggested take the mount off. You have no other options that won't result in a damaged base.

 

[673moto]

Typical result of over-tighting the filter. Like JD655SC suggested take the mount off. You have no other options that won't result in a damaged base.View attachment 208075

Yep, I like that option best. Will be removing mount and throwing in a vise.

 

[Tags]

If you can't stop the hydraulic oil while it's off you can use a shop vac to pull vacuum on the tank while you work on it. I can't stand when a filter gets over tightened and won't come off, so much for the "I've got a few minutes, let me change out that filter quick".....been there, done that

 

[ESDE]

grab a wide cold chisel and hammer. You want to hit it right where the outer skin crimps to the base, at the top edge of the filter as it's pictured. Hit it and make nice little dent that you can get the chisel in, and angled to help turn it loose. Been there, done that, it always works.

 

[Welder Dave]

Wonder if the gasket wasn't oiled?

 

[Tinkerer]

Wonder if the gasket wasn't oiled?

Some dummy prolly tightened it until the filter base and the mount were metal on metal. As we all know a lot of those gaskets are very thin.
The cold chisel trick does work, as long as a person does't get carried away and get into the mount.

 

[673moto]

Figured I’d post the conclusion... got it to spin off by setting a screw into the rim.
Gasket looked pretty dry

 

[Welder Dave]

Good solution!

 

[92U 3406]

Those filters with the round o-ring instead of the flat gasket are always a PITA in my experience.

 

[Welder Dave]

I had an OEM Donaldson installed by a dealer that leaked all the oil out after about an hour of use. It was almost like the O-ring wasn't thick enough to properly seal. I put lots of oil on a new filter and got it snug with a filter wrench but didn't reef it as tight as it would go.

 

[Nige]

Most spin-on filters these days (like the Bobcat one in the photo above) have the recommended installation instructions right on the outside of the canister. The main problem is that no-one ever reads (or follows) them.......

 

[Tinkerer]

For sure Nige!
As we all know those filters feel like they are still loose after following the directions. I am guilty of turning them a little more. But not much.

 

[Nige]

I dunno. Most people I've come across are guilty of not applying the full 1/2 or 3/4 turn (or whatever the pictograph on the filter canister tells them to do) after the seal contacts the face of the housing.

 

[Tinkerer]

I had a GM dealership change the oil in my car engine and a couple of days later I had a puddle of oil on the garage floor.
Really loose filter.