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6.9 water separator

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Old Jan 3, 2015 | 03:16 AM
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From: Manteca
6.9 water separator

Looking to reinstall a water separator back and the 6.9. Original separator is still mounted under the brake booster but has been bypassed, are there any diagrams or pictures on the hose routing to these things? I'm looking to buy an aftermarket separator but basically mount it in the same area
 
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Old Jan 3, 2015 | 10:53 AM
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PO put a Racor unit in my '86 at the stock location. I haven't studied it so I do not know if this is it, but it's similar at least:

http://www.ebay.com/itm/Racor-245R2-Filter-Assy-Diesel-45-Gph-2M-/121034805376?pt=Boat_Parts_Accessories_Gear&hash=item1c2e3c9080&vxp=mtr
As far as plumbing I do not believe it's anything special, just in-line with the fuel line. If the old one is bypasses it should be as simple as un-coupling the hoses and hook them up to the new unit.

So when I did that quick search on ebay for that one I see some other interesting units:

Looks like this guy has a built in primer bulb, which could be useful:

http://www.ebay.com/itm/R45T-Racor-445-Series-Diesel-Fuel-Filter-Water-Separator-FACTORY-NEW-/301285888978?pt=Boat_Parts_Accessories_Gear&hash=item462609d3d2&vxp=mtr
This one has it's own fuel heater:

http://www.ebay.com/itm/Racor-690R-Diesel-Fuel-Filter-12-Volt-Heater-Spinon-Element-12v-Heating-690R1230-/221398942179?pt=Motors_Car_Truck_Parts_Accessories&hash=item338c67c1e3&vxp=mtr
Hmmm, no shortage of options.
 
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Old Jan 3, 2015 | 12:45 PM
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Thanks Chevy, I was that Tractor Supply this morning as well kind of looking around at some separator options. I'll have to crawl under the hood today and see exactly how it was bypassed even though I just 're adjusted the fuel screw and read timed it yesterday lol
 
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Old Jan 4, 2015 | 09:36 AM
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i would look for a 7.3 filter assembly and put that on leaving the stock setup bypassed. the 7.3 filter has the water separator under it, and the aftermarket one piece filter design from napa and wix has the water drain in the bottom of the filter.
 
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Old Jan 4, 2015 | 12:14 PM
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From: Manteca
Originally Posted by tjc transport
i would look for a 7.3 filter assembly and put that on leaving the stock setup bypassed. the 7.3 filter has the water separator under it, and the aftermarket one piece filter design from napa and wix has the water drain in the bottom of the filter.
True I forgot about that route as well, I'll probably have to hit up eBay or something simply because I don't have a junkyards here in susanville that have a lot of diesel stuff
 
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Old Jan 6, 2015 | 11:19 AM
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This might help, I just snagged this pic from OB and properly titled it:

 
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Old Jan 6, 2015 | 11:32 AM
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About a year ago I installed a new water separator. My truck previously had a Racor unit from the 80's that was letting a lot of air into the system. I did some research and ordered the Stanadyne FM100 system (ordered from thedieselstore.com). It seemed a bit cheaper than the equivalent Racor units. I should note that it uses push-on filters as opposed to the standard spin on kind.

I'm not out to say that this system is better than a Racor system or even going the route of the 7.3 setup, however, I'm just posting it so you can see that there are different options out there. I've been happy with my system.




 
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Old Jan 6, 2015 | 05:08 PM
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push on, that seems weird.
 
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Old Jan 6, 2015 | 05:15 PM
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Originally Posted by Skip1970
push on, that seems weird.
Yes, the filter itself is push on, and the plastic ring around the top of the filter screws onto the housing to hold the filter on. It's an interesting design.
 
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Old Jan 6, 2015 | 09:30 PM
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From: Manteca
I was at Tractor Supply and saw this

http://m.tractorsupply.com/en/store/...r?cm_vc=-10005

And was thinking about getting it with the exception of, the inlet and outlet ports are 1 inch lol. I like the setup but that is an awful lot of reducers to get it down to our fuel line size
 
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Old Jan 6, 2015 | 09:32 PM
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From: Manteca
Originally Posted by Chevy_Eater
This might help, I just snagged this pic from OB and properly titled it:
Awesome Thanks man saving that picture for sure
 
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Old Jan 7, 2015 | 12:30 PM
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Originally Posted by 86-IDI
Yes, the filter itself is push on, and the plastic ring around the top of the filter screws onto the housing to hold the filter on. It's an interesting design.
One of my dad's tractors has that design, probably takes the same filter. It's a John Deere 6300. The ring has come loose a couple times and the filter falls off.
 
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Old Jul 5, 2015 | 11:12 AM
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Water Separator Mod by Dieselamour.




Here is a look at my separator mod. The center control rod (sealed drain controller) was removed completely, with the exception of the upper nut. The lower hose is run down the wheel well area and is plugged with a bolt and hose clamp.






I plugged the upper nut with an inexpensive weld all rod and drilled and tapped to fit a barbed fitting, although barbed fittings usually have a nut at the threaded area. Maybe it is nothing more than a threaded union, sorry I do not remember.





I installed a clear filter and applied vacuum until filled to prime the line. The fuel in the filter, I think, will indicate that the fuel line has not gone empty due to air intrusion. Plus, this gives me a filtered port to tap from if I ever need fuel in the future. If I need to drain the separator, I can apply vacuum to this tap to prime my lines.
 
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Old Jul 18, 2017 | 07:03 PM
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6.9l water separator

Hi I just bought an 86 idi and my fuel water separator is giving me problems. I really like your separator setup you're running on your idi I had a couple questions about it. Would you mind texting or emailing me? 650-455-4851 coryradov@gmail.com thanks a lot! -Cory Radov
 

Last edited by Coryrad; Aug 1, 2017 at 05:24 AM. Reason: Don't
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Old Jul 26, 2017 | 10:00 PM
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From: Semper Fi tell I die!
there has to be a cheap option, i just run without them
after disabling the stock seperatpr
 
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