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 Post subject: Cat Fuel Filter... The Autopsy
PostPosted: Sun Dec 02, 2007 1:42 pm 
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well for those who just wast to see what they really look like here it is

First the filter with the first cut
Image

The top has been removed
Image


Next the inside removed. There is a Band keeps the filter from stretching, thats the "string" you see here.
Image

here is a small cut away from the top which keeps the paper in place
Image

Here is the inside of the core with the paper part removed
Image

A view of the paper filter part stretched out
Image

And last a view of the bottom of the filter can... (lot of rust down there!)
Image

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CAT 2 Fuel Filter
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in service 8/31/04
Sold 7/21/10 125k miles
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 Post subject:
PostPosted: Sun Dec 02, 2007 2:06 pm 
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that's a much diffrent design than the OEM filter. is the micron rating the same?


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 Post subject:
PostPosted: Sun Dec 02, 2007 2:20 pm 
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Ripple wrote:
that's a much diffrent design than the OEM filter. is the micron rating the same?


The CAT is a 2 micron. The operations manual for the engine specifies 5, I think, but the Mopar unit is something like 10 micron if memory serves me.

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 Post subject:
PostPosted: Sun Dec 02, 2007 7:27 pm 
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Thanks for the picts. great info.

Looks like it is not too dirty ?

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 Post subject:
PostPosted: Sun Dec 02, 2007 7:28 pm 
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How many miles/months was this filter in service?

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 Post subject:
PostPosted: Sun Dec 02, 2007 9:27 pm 
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Wonder how much water went through that filter? Hope you have a water seperator ahead of that filter.

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 Post subject:
PostPosted: Sun Dec 02, 2007 9:49 pm 
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There is no water separator on a stock CRD, only a sensor

I ran the stock filter for 22k and never saw the WIF light come on, I changed the filter When It started to buck and stall on a regular basis. There was very definitely water in the fuel when I drained it, but the WIF sensor never gave any indication. Haven't heard of anyone on this forum that reported that the WIF sensor actually worked.

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 Post subject:
PostPosted: Sun Dec 02, 2007 10:05 pm 
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Quote:
There is no water separator on a stock CRD, only a sensor



Cut open the oem filter and find the water screen at the bottom of the filter. It's there, trust me. The wif sensor works fine. You just have to have enough water in the bottom of the filter to set it off.

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 Post subject:
PostPosted: Mon Dec 03, 2007 12:23 am 
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there is no water sensor for the CAT fuel filter, thats the only down side... this filter was ran for 15,000 miles which was about a 40/40 of Diesel and B-100 and about 20% B50. Diesel is from the pump and B-100 is home made. I fill up on B-100 then since im out of town alot ive got to use fuel from the pump. thats why there is a 40/40 split and the 20 is when its mixed in the tank as B-50

And yes the CAT is a 2 micron.

_________________
05 CRD
3" Rough Country Lift
SAMCO SPORT Hoses
Magnaflow Muffler (12226)
CAT 2 Fuel Filter
Fumoto Drain Valve
EGR replaced at 50K
in service 8/31/04
Sold 7/21/10 125k miles
----------------------------------------------------------
Paved Roads, another form of unnecessary government spending...


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 Post subject:
PostPosted: Mon Dec 03, 2007 1:41 am 
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Looking at the pictures a bunch of water was run through that filter. The can is rusted almost all the way up. Water will cause much more damage a hell of a lot faster than 10 micron particles to the fuel system. The cat filter is indeed a better fuel filter. It just doesn't have water seperation abilities.

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