Well, could be. I am originally from Missou and spent some time in Colombia and over in Ava. We get back there each summer for family stuff. In Buena Vista, CO now. Taller hills out here.

There's been a lot of discussion about a Cat filter, I'm wondering if one of the bigger Racor filters could be used as well. These are available in variety of micron ratings (I think I read that the Mopar is a 2 micron filter) and have a clear filter bowl that is easier to drain than the Mopar. I have used Racor on a Ford 7.3 and a GM 6.5 (as a prefilter) and they worked very well.

With regards to water in fuel, the people that have the biggest problem with this are marine diesel users. Over the highway diesels have little trouble with it. My own personal experience that even with 40,000 mile filter changes, you only get one or two drops of water.

While we are on the subject of fuel systems, the Mopar system, which is vacuum fed and primed, causes problems if you have a vacuum leak. I've been wondering if it wouldn't pay to add a lift pump, such as GM used, if this is a chronic source of problems.

The lift pump issue has been discussed many times in other threads on this forum. Do a search for posts from MrMopar64 . From what I have read it won't work.

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06.5 Jetta TDI PKG 2 - Silver/Anth

I was at the dealer today and picked up a filter for Greg to measure and while I was there I looked at the parts guide and the water seperator is what the head unit is called. They had the water seperator in stock and list was $136 and when he brought it out it was the head unit for the filter and had a filter attached. I am wondering if the actual fuel seperator is in the head and the filter is just a filter and not a water seperator. That would be a real hoot, would it not?

Time for PB&J sandwich with a glass of skimmed milk.

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91 MB 300D 2.5L Turbo. Her's

05 MB E320 CDI. Mine

Nothing fancy goin on in the head. Got my old one out in the garage disassembled.

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Matt B.

05 Limited CRD. Bought it new. 112k on the clock now.

GDE Eco-tune, rear differential drain plug (drilled and tapped the pumpkin), transmission pan drain plug, Fumoto oil valve, fuel filler neck restriction removed, front hitch, Hayden fan clutch, Sears P1 battery since 08, Mobil 1 5w40, 5 volt glow plugs, DIY timing belt at 109k

Just doing a little digging about the WIF and this is what I found. http://www.lostjeeps.com/forum/phpBB3/vie ... hlight=wif So why worry about having it if it does not work?

Greg

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Greg
www.lubricationspecialist.com
888-306-4255

Well, here is a post where it did work and discussion on issues with water in fuel.

http://www.lostjeeps.com/forum/phpBB3/vie ... water+fuel

Not sure why it didn't trigger in the cases that are displayed in your thread above.

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06.5 Jetta TDI PKG 2 - Silver/Anth

The thread I posted is very typical of WIF. Go to any of the diesel pickup forums and you will see they don't work most of the time either.

Greg

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Greg
www.lubricationspecialist.com
888-306-4255

Then why don't why let the thing flap in the breeze, and just us the white plastic drain?

If you go to the alldata site and look over the TSB's, you'll find one from Sept last year concerning fuel quality on Ram Cummins pickups, more on the line of dealer/owner info.

They flat out stated in one paragraph that the fuel filter should be drained down at least monthly, more often if you suspected water contamination, and not to rely on the WIF indicator light. Fuel filter to be changed out per the maintenance schedule, more often if you suspect bad fuel/water contamination.

They announced some months ago that these trucks in military/government/fleet use were rated for B20 useage, but this TSB added the caveat that B20 was acceptable ONLY if an additional water sep unit was plumbed in line with the factory filter.

Hey, if it's good enough for Cummins.....

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Mitchell Oates
'87 MB 300D Diamond Blue Metallic
'87 MB 300D - R.I.P. 12/08
'05 Sport CRD Stone White
Provent CCV Filter/AT2525 Muffler
Stanadyne 30 u/Cat 2 u Fuel Filters
Fumoto Drain/Fleetguard LF3487 Oil filter
V6 Airbox/Amsoil EAA Air Filter
Suncoast TC/Shift Kit/Aux Cooler
Kennedy Lift Pump/Return Fuel Cooler

It would be easier to just use the white plastic drain and not fool with the WIF electrical pug, but I still think it is insurance, not very reliable insurance, against the rare bad tank of fuel. Maybe the thing will only go off if the water has truely seperated from the fuel, like if you let it sit overnight.

Whether or not the WIF light triggers may depend on what is in the water. The sensor is a conductivity probe and the conductivity of water varies according to the impurities in it.

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Matt B.

05 Limited CRD. Bought it new. 112k on the clock now.

GDE Eco-tune, rear differential drain plug (drilled and tapped the pumpkin), transmission pan drain plug, Fumoto oil valve, fuel filler neck restriction removed, front hitch, Hayden fan clutch, Sears P1 battery since 08, Mobil 1 5w40, 5 volt glow plugs, DIY timing belt at 109k

Yea, but we are talking water here. Electricity doesn't care what kind of water you are standing in when you plug in the cord that isn't grounded. It just fries. How sensitive does it have to be?

Actually, water is not a very good conductor by itself and I'm sure the voltage involved is quite low. I'm not saying this is the answer for sure, just a possibility.

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Matt B.

05 Limited CRD. Bought it new. 112k on the clock now.

GDE Eco-tune, rear differential drain plug (drilled and tapped the pumpkin), transmission pan drain plug, Fumoto oil valve, fuel filler neck restriction removed, front hitch, Hayden fan clutch, Sears P1 battery since 08, Mobil 1 5w40, 5 volt glow plugs, DIY timing belt at 109k

I,ve been erunning a CAT 2 micron on my wife's CRD for a few months now with no problems.You have to make a threaded adapter (1 1/4-14 od thread+M16x1.5 id thread,made of 303 stainless).As for the WIF sensor,I made a small container out of a 2" long 3/4 pipe nipple,capped at both ends with 1 end tapped M12x1.5 + screwed the sensor in it.I filled it with D2,tightened both ends+wire tied it to the brake line.The stock filter is a 3 micron unit.I used a WIX 33528($14.00 US at a local parts store).There is an even longer CAT filter available,But I don't recall the # off the top of my head.Hope this helps!!Kurt

One thing to note - if we manage to successfully adapt a CAT 2 micron filter to the stock filter head, I'll bet dollars to doughnuts that Fleetguard, Wix, and possibly others makes an equivalent replacement for the CAT filter - more shopping options.

Also, one of these companies may make a CAT equivalent that does have a water drain and/or fitting for the WIF sensor.

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Mitchell Oates
'87 MB 300D Diamond Blue Metallic
'87 MB 300D - R.I.P. 12/08
'05 Sport CRD Stone White
Provent CCV Filter/AT2525 Muffler
Stanadyne 30 u/Cat 2 u Fuel Filters
Fumoto Drain/Fleetguard LF3487 Oil filter
V6 Airbox/Amsoil EAA Air Filter
Suncoast TC/Shift Kit/Aux Cooler
Kennedy Lift Pump/Return Fuel Cooler

Couple years back when the filter upgrade research was being done for a 5 micron or less fuel filter only fuel filter on the TDI forum that fit that requirement was the Cat filter. It was the only 5 micron or less absolute available that met the reqirements to prevent injector and IP scarring/wear.

Me, I will use the proven Cat filter that I used on my VW's until something else proven as good or better.

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91 MB 300D 2.5L Turbo. Her's

05 MB E320 CDI. Mine

Yes their are other filters but many things come into play and size being one of them All the filters that are available to replace the Cat we are going to use are bigger and until I see oldnavys CRD I won't knwo what we can use for sure. Also when it comes to micron rating the Cat is 2 micron absolute and the others were nominal rating.

Greg

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Greg
www.lubricationspecialist.com
888-306-4255

Can give you some quick measurements off my spare filter I have sitting here.

On the Wix website, the replacement they list for the factory filter, spec page for it lists thread size as M16 X 1.5. Outer gasket OD 2.770, outer gasket ID 2.440, outer gasket thickness 0.240.

Measuring with a ruler, inner gasket OD 1", inner gasket ID 5/8".

Filter OD at top rolled bead where it mates to the filter head, 3 7/16". Height not including WIF/drain fitting 6 3/4".

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Mitchell Oates
'87 MB 300D Diamond Blue Metallic
'87 MB 300D - R.I.P. 12/08
'05 Sport CRD Stone White
Provent CCV Filter/AT2525 Muffler
Stanadyne 30 u/Cat 2 u Fuel Filters
Fumoto Drain/Fleetguard LF3487 Oil filter
V6 Airbox/Amsoil EAA Air Filter
Suncoast TC/Shift Kit/Aux Cooler
Kennedy Lift Pump/Return Fuel Cooler

Greg will be here sometime Saturday morning and I have a fuel filter and head assembly sitting on the bench ready for use to do some measuring. I wish the CRD was here at home now so I could go pull the wiring harness and look at it to see how this thing is really set up. With the wife and daughter out and gone so much in the Jeep it is hard for me to catch it sitting still for more that a few minutes unless it is after 9 at night, by that time I don't feel like tinkering on the thing. But Saturday I got it all day if needed, sure hope the wife won't want to go somewhere with my Magnum because she always returns it dirty.

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91 MB 300D 2.5L Turbo. Her's

05 MB E320 CDI. Mine