Any experience with Air Dog

HowieE · 08-22-2004, 05:54 PM

Has anyone had any experence witht he Air Dog filteration system? Is intrained air a problem with diesels?

Texas Diesel Guy · 08-22-2004, 08:15 PM

I've looked at them several times, and if they weren't so pricey I would have one. Caterpillar and I believe Cummins as well have Special Service Bulletins that address entrained air in the fuel system.

HowieE · 08-22-2004, 08:29 PM

Considering the size of the fuel bowl on a 6.5 I would assume air would seperate out there and require periodic bleeding at the bleed valve. What am I missing here?

Texas Diesel Guy · 08-22-2004, 08:45 PM

The entrained air they are talking about is not visible air...

Caterpillar Special Bulletin 651-1250:
“Normally, #2 Diesel Fuel contains about 10% air in
solution, although the air is not visible.”

Cummins Service Topic 5-135:
“The source of the vapor is the fuel itself.”

http://www.ekstamworldwide.com/fpoverview.htm

whatnot · 08-22-2004, 08:52 PM

But their injection systems run at much higher pressure don't they?

Texas Diesel Guy · 08-22-2004, 09:03 PM

well that depends on which particual system your talking about, but I guess in general, yes nozzle opening pressures are higher on unit injector systems. All they're saying is that there is 10% air present in diesel fuel, so a fuel preporator would remove the air theoretically giving you ~10% more fuel in the same volume.

spindrift · 08-23-2004, 11:11 AM

Don't use it but the following thread provides some detailed info:

http://www.turbodieselregister.com/f...d.php?t=108378

08-22-2004, 05:54 PM	#1
HowieE Diesel Fanatic Join Date: Sep 2003 Location: Princeton NJ Posts: 281 iTrader: (0)	Has anyone had any experence witht he Air Dog filteration system? Is intrained air a problem with diesels? __________________ HowieE 1997 Chevy 2500 4x4, Intercooler, BD Computer, BD Exhaust Brake, BD Torque Lock, Propane Assisted from Trailer, Remote trans cooler, and More on my page http://mysite.verizon.net/vze54tx9/
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08-22-2004, 08:15 PM	#2
Texas Diesel Guy Diesel Fanatic Join Date: Jun 2004 Location: Ontario, Canada Posts: 2,950 iTrader: (0) Ontario Diesel Place Chapter Member	I've looked at them several times, and if they weren't so pricey I would have one. Caterpillar and I believe Cummins as well have Special Service Bulletins that address entrained air in the fuel system. __________________ *'95 VW Passat 1.9L Turbo Diesel 5-speed, fresh cylinder head, new turbo 1000km (~600mi)/tank!*
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08-22-2004, 08:29 PM	#3
HowieE Diesel Fanatic Join Date: Sep 2003 Location: Princeton NJ Posts: 281 iTrader: (0)	Considering the size of the fuel bowl on a 6.5 I would assume air would seperate out there and require periodic bleeding at the bleed valve. What am I missing here? __________________ HowieE 1997 Chevy 2500 4x4, Intercooler, BD Computer, BD Exhaust Brake, BD Torque Lock, Propane Assisted from Trailer, Remote trans cooler, and More on my page http://mysite.verizon.net/vze54tx9/
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08-22-2004, 08:45 PM	#4
Texas Diesel Guy Diesel Fanatic Join Date: Jun 2004 Location: Ontario, Canada Posts: 2,950 iTrader: (0) Ontario Diesel Place Chapter Member	The entrained air they are talking about is not visible air... Caterpillar Special Bulletin 651-1250: “Normally, #2 Diesel Fuel contains about 10% air in solution, although the air is not visible.” Cummins Service Topic 5-135: “The source of the vapor is the fuel itself.” http://www.ekstamworldwide.com/fpoverview.htm __________________ *'95 VW Passat 1.9L Turbo Diesel 5-speed, fresh cylinder head, new turbo 1000km (~600mi)/tank!*
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08-22-2004, 08:52 PM	#5
whatnot Diesel Specialist Join Date: Sep 2003 Location: Wisconsin Posts: 657 iTrader: (0)	But their injection systems run at much higher pressure don't they?
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08-22-2004, 09:03 PM	#6
Texas Diesel Guy Diesel Fanatic Join Date: Jun 2004 Location: Ontario, Canada Posts: 2,950 iTrader: (0) Ontario Diesel Place Chapter Member	well that depends on which particual system your talking about, but I guess in general, yes nozzle opening pressures are higher on unit injector systems. All they're saying is that there is 10% air present in diesel fuel, so a fuel preporator would remove the air theoretically giving you ~10% more fuel in the same volume. __________________ *'95 VW Passat 1.9L Turbo Diesel 5-speed, fresh cylinder head, new turbo 1000km (~600mi)/tank!*
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08-23-2004, 11:11 AM	#7
spindrift Diesel Fanatic Join Date: Nov 2003 Location: Princeton, NJ Posts: 269 iTrader: (0)	Don't use it but the following thread provides some detailed info: http://www.turbodieselregister.com/f...d.php?t=108378 __________________ '98 Chevy Suburban 2500 4X4, 6.5TD, 94K, 4.10 gears, K&N air filter, 4" Magnaflow Performance Exhaust (cat modified), Isspro gauges (boost, tranny, pyro), Bilsteins, remote FSD, Turbo-Master, HO injectors, Max-E-Tork ECM, Jordan controller, Keystone Cougar 304 BHS, GCW 17,800# (without the 7 bikes)
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