What's the proper way to cut open oil filter

[PaulRV6]

What is the procedure for cutting open an oil filter? I just removed the filter and I want to inspect for any particles that may or may not be present. I do not have a special tool for cutting the filter so other than that how would you do it. Thanks

paul

 

[ijames]

I've done it with a regular can opener (ok, a pretty stiff one ). With the filter standing gasket end up you would use the opener on the top if it were a can. Turn the opener sideways so the wheel cuts around the outside just below the thick disk that threads on the engine. Cheap can openers are under $4 if you don't want to ruin your "good" one. I like this way because there are no chips to confuse things. I bet one of those exhaust pipe chain cutters would do the job, too, or if you have a tubing cutter that big.

 

[Chuck Leeper]

Knock a hole in the side, next to the o'ring end crimp.
Then, use a pair of tin snips.
That way, the interior is not contaminated, as it would if a hacksaw were used.
Once the cartridge is out, I cut the ends loose with a razor knife, and then open the pleats.
After the initial look, I hang the matl up, and let the excess oil drain from it. That way, U can easily see any small particles left.
I also look at the remaining oil in the bottom of the can, once the element is out.... Gets interesting, some times!!

 

[turbofabricator]

The "best" way to open up an oil filter is with one of these: http://www.tavia.com/08340.jpg I personally use a sharp putty knife and hold the filter in a vise and tap the putty knife with a hammer all the way around, just below the filter base. Works great and only costs a few bucks.