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Interesting idea. I agree the filtering efficiency of a/c oil filters is appalling. However, after taking the Continental course, it's my distinct impression that a big part of why our aircraft engines work today is because they've been tweaked in subtle ways to address the failures of the last 50 years. In other words we know what we know because of massive field experience, more than anything else. ...and Continental (or Lycoming) made the minor changes they made because each stopped some catastrophic failure mode.
I looked around for specs and couldn't find any. I would want to know some things before I put one in my airplane. like:
- what is the oil flow in gallons per minute of an aircraft engine oil system vs. an automobile?
- at that flow rate what is the pressure drop across the oil filter?
- how much more oil pressure will I see on the upstream side of that filter than I would with a inefficient aircraft oil filter?
- how does my oil pump and anything connected to it respond to that pressure?
- is there a bypass feature in the filter in case an internal blockage develops in the filter? If so, at what pressure does it kick in vs. an aviation filter?
- what happens to my flow rate at low rpm?
- at startup, how long does it take oil to reach critical locations?
Colyn
On May 2, 2014, at 11:17 AM, William Rumburg wrote:
Hi Jim -
I've meant to answer this for a while, but kept putting it off. I've used a Mobil M1-107 automotive oil filter on my Lycoming IO-320 for over ten years. Them M1-107's gasket fits the standard Lycoming spin-on perfectly. It's a premium automotive filter and, although I don't have emperical evidence, I'm certain it's superior to antiquated 'aviation' oil filter technology. It's also considerably smaller than the Champion, which might solve your interference problem.
Here are Mobil's claims from their website... http://www.mobiloil.com/USA-English/MotorOil/Other_Products/Mobil_1_Extended_Performance_Oil_Filters.aspx
1) Remove more contaminants than conventional filters using an advanced synthetic fiber blend filter media
2) Holds and remove three times the dirt versus the leading economy filter brand
3) Reduces resistance to oil flow while improving filter efficiency
4) Withstands up to nine times the normal system operating pressure
Bill Rumburg
N403WR (Sonic bOOm)
----- Original Message ----- From: Jim Nordin
To: lml@lancaironline.net
Sent: Wednesday, April 23, 2014 12:17 PM
Subject: [LML] Oil filter
Lancairians,
I have an IO-360 with a spin on filter. The filter sits above the cowl just a bit. The filter is the Champion CH48108-1. Is there another that doesn't sit so high to interfere with the cowl?
Or do I have to buy a remote?
There are other filters but what works?
Jim
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