6.7L Cummins Forum

Hello Everyone,

Here is my installation of the GDP 2 micron diesel filter setup. I am VERY happy with this kit, its has the BEST purchased kit to date !! Everything was right, no modifications, no buying missing bits, nothing.

I wanted my installation to keep somewhat an OEM look, so I wrapped the hoses in the style wrap that Dodge/Cummins did. I doubled it (1/2 inch under 3/4 inch) so there is lots of protection from the vibration.

Here are the pics on a stock 6.7L engine:

Bracket installation, retained cummins cable holder:
Hose routing from stock filter to new unit:
Suggestions:

1. Assemble the bracket before installing onto engine. That way you do not have to deal with the EGR bypass tube. I used medium strength locktite on the mounting bolts. Diesel engines vibrate too much to trust lock washers to work over time. Use locktite only on the mounting bolts, NOT the fuel fittings !

2. You need to only remove the EGR plastic trim cover.

3. When you remove the plastic line from stock filter to the high pressure pump, diesel will spill out. When you remove the fittings from the high pressure pump, put a couple shop towel down around the fitting. It will drip till all the hoses are re-attached. Even though it has a check valve, that is alot of pressure on the rail and it will bleed out.

4. Pre-fill the filter before installing. Once installed and ready to go, bump the starter a couple times and that will take the most of the air out the line before actually starting the engine.

5. Have all the wrenches you need up front. It will take a combination of inch and metric. Space will be tight, but fully doable with standard designed wrenches.

6. Most important !! Take your time. You are installing steel parts into aluminum bodies. Over tightening WILL strip threads and cost you a fortune to replace/fix. When you remove the stock parts you will find that they are not very tight, remember that. You are dealing with low pressure fuel line, not the high pressure common rail.

7. Even though the hose and fittings are press fit, I opted for additional clamps. I just do have the time to screw with and fix things later. Extra 2 bucks now, save money long run.

WARNING: If you are thinking about installing an Airdog or similar style high volume pump, DON'T till you replace the line from the stock filter to pressure pump. When you remove the stock fittings on the pressure pump, you will see why ! No wonder these engines are prone to fuel starvation .... Will post pics later to show why.

Actually the GDP site had a pic showing what I mean (so snagged it ...):

Hope that helps, later I will do a separate water separator under the bed.

Cheers all,
Roberto

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Sounds good but I can not see the pic's.

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2008 Dodge 2500HD 6.7L 4X4 Laramie
Edge insight, Amp tailgate step, 4" Boss Bars, rear air bags with compressor, spray in bed liner

Try it now, I think I got it fixed.

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2007.5 Dodge Ram 3500 HD,QC, 6.7L Cummins, 6speed Auto, 4X4, Bighorn Edition.
Click for installs: Carr Steps PML Diff Cover Edge Juice with Attitude Volant Intake Hankook ATM RF10

Squid,

Thanks a million !! Got the post fixed and removed the duplicate posting and junk.

Cheers,
Roberto

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That's really slick! Were the hoses pre cut or do you have to measure and do that yourself? Guess an oil filter wrench is all it takes for filter install and removal? This really does look stock. I hear my bank account depleating as we speak.
Patrick

Hello Patrick,

The hoses where long which was really sweet, because if you measure right and think about it, you end with spares ready to go

Since I have the EGR tube (though the EGR valve is kept unplug [not in picture though ]), its get a tad warm so I routed the supply between the dip stick bracket which ensures that the hose will never come in contact with the hot EGR unit or pipe.

Servicing the filter is easy, when you look up close and down, you find there's plenty of room. With routing the line to the CP3, route over the horn and that leaves a nice open space to get the filter in and out (especially since you have to pre-fill it).

I think its a kit worth having since you can now by diesel at cheap places and not worry about if they are pre-filtering or not, you will have some dang good filtering yourself.

Cheers,
Roberto

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Very cool this is definitely on the list.
Patrick

Another thing I just thought of. Does this particular filter act as a water stripper also? Or is that where that other two filter system would come into play.
Thanks, Patrick

This is strictly a fuel filter. If you want to do a combination filtering and water sep, than this unit would be better: Glacier Diesel Power - Product Detail

In my case I wish to have the 2 mic filter after the OEM, it will last longer and I can do staged filtering. I plan to install a GDP water sep unit close to the tank so I have staged water separation also.

Cheers,
Roberto

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Great write up Roberto! Glad your install went well. =)

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'08 Ram 3500, QC, DRW, 4x4, 6.7L, 68RFE, Laramie ~ H&S XRT, Edge Race J/A, B&G "Modified" TCM, Goerend Twin Disc, X-Monitor, ARP 625's at 160, GDP MODS: Air-Boss 67 Grid Delete, Arctic-Heat Grid Reloc Kit, Pro-Gate 38 (open dump), Full Flow EGR/Cooler Delete, Maximizer Big Line Kit, Double-X Ladder Bars, High Output In-Tank Pump Mod in the works...

Richard @ GDP
509-993-4923
Glacier Diesel Power.com