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Discussion Starter #1
I've been looking at fuel that comes out of the 5 gallon fuel tanks that I fill from the local fuelling station. I have been surprised and a little shocked at the amount of gunk from virtually any station.

As a result, I've been examining the concept of auxilliary filtration.

What do you guys recommend? Which kits? How hard to install? I appears that I could simply re-route the lift pump and tap into the fuel line there.

How about this one? http://www.nicktane.com

Sincerely,

Rob :)
 

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There is actually a forum on the site just for Nicktane questions. I have a Racor 445 that I got off of "A major auction site" for $65 and it has really amazed me with the crap it has kept out of my primary filter. When I installed the second filter, I changed the primary so I get some kind of refrence.
 

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I'm using a 2 micron CAT filter setup on my '04 Jetta TDi and have thought about adapting the same to my truck.

http://www.lubricationspecialist.com/product_info.php?cPath=29&products_id=138

Otherwise, I might consider this, since it is available with a heater. The heater could be an 'insurance policy' for the winter when I really need the truck.

http://www.lubricationspecialist.com/product_info.php?cPath=24_32&products_id=165


Note: Even in the coldest of weather I have not noticed any indication of fuel in my Jetta jelling (I am running KleanService additives - white bottle in winter; silver in the summer) The Jetta is driven daily. The truck on the other hand is a my 'weekend workhorse' and doesn't see the miles the Jetta does.
 

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I use the Racor 445 2-micron setup after the OEM system to act as a finishing filter. The OEM filter catches all of the big stuff and the Racor filters for the smaller stuff. I have it mounted next to the driver side battery. It was the first thing I did to my truck when I got it home new from the dealer.
 

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I've used a 645 Racor since 2002 on my Yukon but since driving in salty roads the last 2 winters the corrosion has eaten away part of the base. The seal still holds, but there won't be a next time. I have to replace the base at a minimum before the next filter element. Racor confirmed this can happen as the coating they spray on doesn't necessarily prevent salt corrosion. Next time I plan to use some kind of anticorrosion spray after installing a new filter.
 

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SuperT,

Got any photos of your mounting setup and routing of fuel lines?

Wha't the difference between the 445 and 645 Racors?
 

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SuperT,
Wha't the difference between the 445 and 645 Racors?
The 445 has a primer the 645 does not have a built in primer pump.

The 445 and the 645 can also use the longer 60 or 90 filter elements.

IMO the 6.5's need a filter prelift pump to protect the lift pump. I have a 445 in before my lift pump using the 45P (30 micron filter). I'm going to switch to a 645 filter head because it has less restriction to flow than the 445 has, and the other reason is that the 645 head will let me move the mount up higher and let me run the 60P filter that will last longer and also crosses to a Fleet Guard and Bladwin filter element so it will be easier to get replacements.

Carey
 

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I've used a 645 Racor since 2002 on my Yukon but since driving in salty roads the last 2 winters the corrosion has eaten away part of the base. The seal still holds, but there won't be a next time. I have to replace the base at a minimum before the next filter element. Racor confirmed this can happen as the coating they spray on doesn't necessarily prevent salt corrosion. Next time I plan to use some kind of anticorrosion spray after installing a new filter.
Was your filter base painted or did it have the clear coat only?

Carey
 

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The 445 has a primer the 645 does not have a built in primer pump.

The 445 and the 645 can also use the longer 60 or 90 filter elements.

IMO the 6.5's need a filter prelift pump to protect the lift pump. I have a 445 in before my lift pump using the 45P (30 micron filter). I'm going to switch to a 645 filter head because it has less restriction to flow than the 445 has, and the other reason is that the 645 head will let me move the mount up higher and let me run the 60P filter that will last longer and also crosses to a Fleet Guard and Bladwin filter element so it will be easier to get replacements.

Carey
W/O the primer, what's your procedure for replacing the filter and purging the system - gravity ?

BTW, I agree the the 'secondary' filteration should be before the LP. If, or when I add secondary filtration, it will be pre-lift pump.
 

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Discussion Starter #10
It looks like the "Nicktane" units are designed for the DMax, and are installed just off the fuel tank. Has anyone put one on a 6.5, and if so, did you need to put in a pump to handle the additional restriction?

Sincerely,

Rob :)
 

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W/O the primer, what's your procedure for replacing the filter and purging the system - gravity ?

BTW, I agree the the 'secondary' filteration should be before the LP. If, or when I add secondary filtration, it will be pre-lift pump.
Well with the 445 I can pump the filter full with the primer, but I naormally use the red wire that comes off the fuse box on the 96's and up. I have it ran to a momentary switch and it will prime both filters with the lift pump.

Carey
 

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Ideally, I think it would be best to locate the filter before the pump. In reality, I mounted the filter in the easiest to reach location. Is the LP getting unfiltered fuel? Sure. Am I really worried about it? Naw.

On my Blazer, I mounted the same filter to the firewall above (or slightly to the passenger side IIRC) the master cylinder. I'll snap some pictures of my suburban setup, but for Blazers, you may want to look at that location, too.
 

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I put the "Nicktane filter" on the fire wall above the stock filter and threw the stock filter away. The CAT filter is longer and when you change it all the big stuff and water go with it. For a little more that $18 bucks you get more filtering area and a better filter that the stock IMHO.
 

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Discussion Starter #14
FNG, thanks for your response. Can you take a few good pics of your setup? I'd love to see it, and I suspect others would as well. Any tips or tricks to getting the filter mounted in that location would be invaluable as well!

Sincerely,

Rob :)
 

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I put the "Nicktane filter" on the fire wall above the stock filter and threw the stock filter away. The CAT filter is longer and when you change it all the big stuff and water go with it. For a little more that $18 bucks you get more filtering area and a better filter that the stock IMHO.
FNG,

What did you do for a fuel heater and the water in fuel light?

Carey
 

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I unplugged them! Where I live a fuel heater is a waste of energy. The CAT filter is so big that it can hold a pint of water and still have almost the same filtering area as the stock filter. My pics are too big to attach here and I don't know how to reduce the size to fit. The filter is attached to the firewall right above the stock filter.
 

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I replaced my lift pump and installed a Racor 645 before it, with a 30 micron element. Mine has the fuel heater option, but I have never hooked it up. Originally I was considering a finer filter, but was afraid of having the filter clog leaving me stranded. 2micron might be overkill for a 6.5 engine, although I think 10 micron would probably be ideal for a prefilter.
 

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Once again folks a quick trip to FAQs this thread would have been found http://dieselplace.com/forum/showthread.php?t=15002 even a pic of an installed pre lift pump filter, which is required IMO to keep the crud from eating away the innards of the lift pump. 2 micron is too fine a filter for primary or all in one filter, makes a great final filter though call Racor, Wix, & Baldwin all will say same BTW BF1201 is p/n for Baldwin filter, & 33376 is Wix P/n according to those site it is a 5 micron nominal rated filter, GM manual says filter is a 10 Micron, I'll defer to the filter mfr over GM.
 

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I unplugged them! Where I live a fuel heater is a waste of energy. The CAT filter is so big that it can hold a pint of water and still have almost the same filtering area as the stock filter. My pics are too big to attach here and I don't know how to reduce the size to fit. The filter is attached to the firewall right above the stock filter.
Send them to me via email [email protected]
 

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Check out Mercedes spare parts, there's a pre-filter on mine that made me think it could nicely be used as a pre-filter in the line before the lift pump on my truck. Two versions are available, one straight and one with a 90 degree angle at the outlet side. It costs EUR 1.98; when it's dirty, you just replace it.
 
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