caymann
NH, USA
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Joined: 09/15/2002
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i am at 57k miles and haven't changed the air filter yet.
this is on a cummins isc 330.
when i opened up the engine bay yesterday, i found the "graduated air filter indicator" popped out and basically broken.
how can this happen? does this mean, my air filter is all clogged?
i have heard, in a DP, air filters can go 100k miles or so before a change. i havenot driven in dusty conditions...
2000 Holiday Rambler Imperial 41' Cummins ISC 330
2003 Jeep Grand Cherokee Laredo Auto 4WD (TOAD)
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wolfe10
Texas
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Joined: 10/08/2000
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What exactly is broken? If the filter minder indicates high restriction (over 20 or so column inches of water), it can be easily reset using the button on the bottom of the filter minder.
If the housing is broken, it needs to be replaced and until it is, block the line, as it is sucking unfiltered air into the intake system (pre-turbo).
And you should change filter elements not just based on restriction but also based on time. The filter elements are made of paper and DO have a finite life. Three years is the number most filter manufacturers recommend for filter element life.
Brett Wolfe
1993 Foretravel 36' U-240
Cat 3116, Allison 3060
Caterpillar RV Engine Owner's Club: www.catrvclub.org
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alcolby
yuma az.
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Joined: 09/20/2004
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I change mine @30k miles or so.
A dirty air filter replacement is cheap compared to Diesel. Mine comes as an assembled cannister/filter ass'y and cannot be cleaned.
Costs about $140.00 about the same as 35 gallons of Diesel every two or three years
Al C '06 Executive
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caymann wrote:i am at 57k miles and haven't changed the air filter yet.
this is on a cummins isc 330.
when i opened up the engine bay yesterday, i found the "graduated air filter indicator" popped out and basically broken.
how can this happen? does this mean, my air filter is all clogged?
i have heard, in a DP, air filters can go 100k miles or so before a change. i havenot driven in dusty conditions...
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Badeye
Bonaire GA
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Joined: 03/06/2003
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I change mine every two years (sooner than recommended) or when the indicator shows that it is needed. Just a little cautious I guess but the cost is not as high as a trashed motor for sure.
Badeye
"No one can guarantee success, only effort."
Bob & Fran
2005 Coachmen Sportscoach Elite 40 ft DP
2003 PT Cruiser
Featherlite Car Hauler
FMCA F324606
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chastho
arkansas
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Joined: 07/27/2005
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Changing the air filter too soon is only costing you money. The most effective filter is one that has a coating of dust on the element. Read the instructions that come with the filter, it will tell you not to change it until indicator gets in the red or time specified by chassis mfg.
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Deen
Vancouver, WA
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Joined: 12/07/2000
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I changed mine for the first time last week. It was six years old and still not to the red line, the filter media looked a little water logged but not very dirty. I also found a small wasps nest in it. I'll change it sooner next time.
Mine is the sealed unit, cost me less than $80 incl. shipping and tax (which, by law, shouldn't have been charged)
Deen - Vancouver, WA
'02 Dutch Star 4090 (41+', triple slide)
435/1200 ISC Cummins/Banks PowerPak
'97 Grand Cherokee/4 down
'05 Honda Odyssey/dolly
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Jaseds
NE TN.
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Joined: 08/16/2007
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If you have the ECO II self contained filter Frieghtliner dealers have a good price and they are Fleetgaurd . Check them next time you look for one.
 Have A Nice Day
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Badeye
Bonaire GA
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chastho,
Your opinion on the most effective filter is a little different than mine. To me the most effective one is the one that keeps the dirt out of my engine and still allows the maximum air flow to the engine. I realize that the computer can compensate for a variance in air flow to a degree and that is what the air flow sensor is for, to tell me when the air flow is not quite good enough. However, I find that the sensor has various readings depending on where I am driving and how hard the engine is having to work. After a drive through the mountains I have found it in the red and reset it. It would not be in the red again for several months until another trip through the mountains. Does this mean that I have to change the filter. Probably not. But that is why I do not completely trust the sensor and also take into consideration the life of the paper in the filter.
Badeye
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adondo
Pasco, Washington
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Joined: 07/28/2004
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Cat recommends replacing at 25'' Cummins and Detroit say 20'' of H2O column on the indicator. If it's in the RED as Badeye says, it's waaaaay overdue for replacement. The red zone usually starts at the 25'' mark.
And, all the engine makers say to replace the filter based on the restriction gauge, NOT on what the filter looks like. Also, replace when 3 years old due to paper deterioration - you do NOT want it coming apart and getting sucked into the intake manifold.
The restriction gauge is important, so if it's broken, it needs to be replaced ASAP.
Here's a link to a document by Donaldson (the air filter people)
FMCA# F355513. 1997 Safari Continental, 40 foot, 1 slide. Cat 3126B, Allison MD3060. 2000 Durango SLT 4x4 toad with a Blue Ox Aventa II and stopped with a Brake Buddy.
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alcolby
yuma az.
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Joined: 09/20/2004
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I cannot see the wisdom of this. If it has "a coating of dust" isn't it on it's way to becoming less effective? {like, dirty?}
This dust must decrease it's capacity to pass air to some extent, and that is the whole purpose of changing the filter.
This is like changing oil at sooner than minimum intervals, it cannot hurt.
Al C
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quote=chastho Changing the air filter too soon is only costing you money. The most effective filter is one that has a coating of dust on the element. Read the instructions that come with the filter, it will tell you not to change it until indicator gets in the red or time specified by chassis mfg
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