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Old 05-18-2009, 06:39 AM   #15
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I spent 30+ years in the filter business and strongly support what EngineerMike stated. Testing clearly indicates the oiled foam elements are not nearly as efficient as paper/resin media. Taking this further, at the risk of sounding harsh, if filter element Life is more important than Efficiency to you, simply poke bigger holes in the element.

Also, do not try to save a few bucks by blowing out the element because pressurized air can damage the media. If you must, because you see higher than normal Delta P on the "Filter-minder" somewhere in the Boonies, remove the element and gently tap it on the ground to release some of the dust. Then re-install it to get you to someplace you can find a replacement (I carry a new element). Always make sure there is no dust around the sealing surfaces of the element and housing.

Generally speaking, low readings on the "Filter-minder" indicate less restriction, which is synonymous with lower efficiency. Note: "Filter minder" gages are not all that accurate and, for myriad reasons, the same filter element installed to other housings with their own "Filter minder" can indicate differently. They are best used for reference only.

As FRAM used to say; "Pay me now or pay me later".
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Old 05-19-2009, 08:40 AM   #16
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I also had trouble with the air gage showing red in a short time. I got the raycor rep. at a spartan ralley to check it out. He said spartan had it hooked up to close to the turbo, and they moved the location back closer to the filter. It works alot better now. This only indicates you could have a problem. There were several there with the same problem. Some had an air restriction problem. Most of them having problems were the ISM. Mine is the ISL. Yes spartan does have the best price I could find. The filter people said you should get two years out of them, unless you have some extreme conditions. hope this helps Dave
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Old 05-19-2009, 09:42 AM   #17
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Assuming an element was sized properly, I'd be wary of anybody making the blanket statement you can get 2 years out of a filter element. A filter element's life is more dependent on miles/hours and conditions of operation.

For example:
I drive approx. 15K miles a year and seldom on dirt roads to a CG. IMO, 30K miles is too many for an element.
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Old 05-19-2009, 12:17 PM   #18
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Quote:
Originally Posted by rmmpe View Post
A filter element's life is more dependent on miles/hours and conditions of operation.
There are no ifs ands or buts about this statement.

The only thing that provides insight into this statement is that darn vac gauge. The specific reading is essentially irrelevant, it's how much has that reading changed since the filter was new...
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Old 05-19-2009, 12:37 PM   #19
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There are no ifs ands or buts about this statement.

The only thing that provides insight into this statement is that darn vac gauge. The specific reading is essentially irrelevant, it's how much has that reading changed since the filter was new...
Exactly.
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