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  #1  
Old 11-08-2020, 04:43 PM
rjcthree's Avatar
rjcthree rjcthree is offline
 
Join Date: Jan 2007
Location: Bay Village, OH
Posts: 951
Default Oil filter media knife

What do the pros use for an oil filer media cutter? Iíve tried a couple of different methods but nothing stands out. So far the best for me has been the extendable snap off blade fate tempter kind of knife, but Iím wondering if a nice filleting knife mightíve be a safer and longer lasting solution?
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RV-9A N183RC/90432: tip-up, O320H2, Ellison, Dynon D180, CPi2, Sen GA, at KLPR
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  #2  
Old 11-08-2020, 05:20 PM
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MacCool MacCool is offline
 
Join Date: Aug 2020
Location: central Minnesota
Posts: 467
Default

I'm no expert, but a mini-hacksaw worked great for me

https://www.google.com/search?q=mini...w=1750&bih=881
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  #3  
Old 11-08-2020, 05:22 PM
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koupster koupster is offline
 
Join Date: Dec 2013
Location: SLC, UT (KBTF)
Posts: 265
Default Serrated bread knife

You need a longer blade than an extendable snap off knife.
The edge of a filet knife will dull against the oil filter center.
The serrated knife will cut the heavy paper well.

Cheers, David
RV-6A KBTF

P.S. A hacksaw blade might contaminate the filter paper with chips from the metal oil filter center tube.
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  #4  
Old 11-08-2020, 05:29 PM
eaglen92ce eaglen92ce is offline
 
Join Date: Oct 2009
Location: Chandler, AZ
Posts: 194
Default

Plus 1 on the serrated bread knife. Works great and is pretty safe, keeping your hands farther from the cutting area.
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  #5  
Old 11-08-2020, 05:31 PM
RVDan RVDan is offline
 
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Location: Frederick, MD
Posts: 895
Default

I use a Dewalt extendable blade knife with good success. It has heavier blades than the disposable extendable knives. Found at big box stores.
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  #6  
Old 11-08-2020, 06:32 PM
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danastoker danastoker is offline
 
Join Date: Jul 2020
Location: Tucson
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I am just about [8 hours] to do my first oil change in my IO-360-A1B which has about 1400 hours SMOH. I had planned on sending a sample of the oil to an oil testing lab. Had not considered destructive evaluation of the removed oil filter. Which is better?
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  #7  
Old 11-08-2020, 06:40 PM
BH1166 BH1166 is offline
 
Join Date: Nov 2017
Location: Eatonton Georgia
Posts: 373
Default Both

Send sample for trends.... open filter and review locally. I send samples and base opening filter on the lab sample findings.
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  #8  
Old 11-08-2020, 07:36 PM
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avrojockey avrojockey is offline
 
Join Date: Aug 2019
Location: Appleton, WI
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Quote:
Originally Posted by danastoker View Post
I am just about [8 hours] to do my first oil change in my IO-360-A1B which has about 1400 hours SMOH. I had planned on sending a sample of the oil to an oil testing lab. Had not considered destructive evaluation of the removed oil filter. Which is better?
They measure different things...

Oil screen filters out stuff with parts numbers on it, oil filter catches stuff that gets past the screen and keeps your oil cleaner down to 20-30 microns, and the oil analysis can tell you trends in wear you canít see visually. They all complement each other.
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  #9  
Old 11-08-2020, 08:00 PM
JRichichi JRichichi is offline
 
Join Date: Mar 2013
Location: League City, TX
Posts: 94
Default Try this...

I've tried multiple ways to cut the oil filter media away from the filter itself. Most of the ways I've tried I feel like I'm about to cut a finger off. All of them create a huge mess. With one exception.

https://www.aircraftspruce.com/catal...ltercutter.php

Yeah, it's expensive. But once you use it, you'll never go back to the old way of cutting the media off. It works on "long" filters (6.19" long) and "short" filters (4.38" long). If you use Tempest filters, you'll need to get the adapter that works for Tempest filters. The adapter works for both long and short Tempest filters.

I hope this helps.

Jeff

Last edited by JRichichi : 11-09-2020 at 05:38 AM.
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  #10  
Old 11-08-2020, 10:09 PM
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hgerhardt hgerhardt is offline
 
Join Date: Oct 2006
Location: torrance, ca
Posts: 704
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I used to use a hacksaw to cut the paper from the end plates but lately I've been using a Stanley utility knife with the "heavy duty" blades, which are a bit longer than the light duty ones. You cut through all the paper pleats and lastly take pliers and break away the bent strip which holds the pleats together.

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