LBZ: AirDog II Install

[8100 Power]

Got my AirDog II pump in this week, I'm going to install today. Any special tips or pointers?

I know I need the fuel line disconnect tools to get the lines apart. Anything else special?

Also, is this a flow thru design pump? Say if the pump fails will the truck still run?

 

[wikdlmm]

I found it alot easier to pull the bed off.. Are u doing the 1/2 pick up?

 

[Alligator]

ADII doesn't require the Pickup.

Pump is flow through, so no worries about that. Nothing much to add on install, pretty straight forward. Good luck.

 

[wikdlmm]

Ok I didn't know that chad.. The one I bought from u had the pickup

 

[stacks04]

whats the differance between the ad and adII? when did they change?

eta, i did mine with the bed on, although i had a filter assm already on and when i did it i lowered the tank. so based on that you need the room to do it right. either the bed or the tank. while your in there do the kennedy mod to the sender by switching the feed line to the vent hose side more flow.

 

[maxaholic]

My AD came with a pickup, but I didn't put it in yet. My fuel pressure gauge is still reading 11psi at idle and drops to about 8 at WOT.

 

[8100 Power]

The way I understand it, you don't have to drop the tank or remove the bed, hence why I spent the extra money for the 2nd Generation. Hopefully there will be plenty of room.

 

[Alligator]

whats the differance between the ad and adII? when did they change?

eta, i did mine with the bed on, although i had a filter assm already on and when i did it i lowered the tank. so based on that you need the room to do it right. either the bed or the tank. while your in there do the kennedy mod to the sender by switching the feed line to the vent hose side more flow.

The original AD pumps 150 gph at 8-10 psi through the system all the time, which returns a lot of unused fuel back to the tank This creates turbulence and foam at the sending unit, which causes some of the 1/4 tank issues the LP's with filters cause. That's why they supply the suction tube, to get the port as low in the tank as possible, and to move it farther away from the sending unit.

The AD II is a new design, that is demand flow; Meaning that it only pumps as much fuel as the CP3 needs, which means less fuel/air being returned to the tank. This is why you can use the stock sending unit. It also has an adjustable pressure regulator, so you can choose what psi you want the pump to pressurize to.

 

[Durasizzle]

get ready to fight with the 1/2" line, took me a good 30 minutes to get that line apart because its fairly tight spot (depending on what route you go, there is two ways to install it) but after that its very easy. also check to make sure they sent you the right 3/8" female by 1/2" push-lock fitting, i got a 1/4" female instead of the 3/8" and had to wait 2 weeks for a new fitting to be sent to me but im up in Canada

 

[8100 Power]

get ready to fight with the 1/2" line, took me a good 30 minutes to get that line apart because its fairly tight spot (depending on what route you go, there is two ways to install it) but after that its very easy. also check to make sure they sent you the right 3/8" female by 1/2" push-lock fitting, i got a 1/4" female instead of the 3/8" and had to wait 2 weeks for a new fitting to be sent to me but im up in Canada

Yep, sent a 1/4 instead of a 3/8". Also shorted me 2 on the main connectors that plug into the side of the airdog.

My friend has a better idea of me just cutting into the metal lines and hooking it up that way.

 

[8100 Power]

It's installed, it's pretty quite.

I like it so far, I don't know if I can feel a difference though?

Is the pressure preset on this, or do I have to turn it up?

 

[Durasizzle]

should be preset at 10 psi

 

[crider4_6]

i am going to do mine on my LBZ CREW CAB is there a way to bypass the stock filter or am i needing to go through 3 filters cause i know on cummins the run there owne line to the cp3 ??? any help would be awsome !!!!!
Thanks Casey Crider 918-314-4712

 

[dirttymaxx]

i am going to do mine on my LBZ CREW CAB is there a way to bypass the stock filter or am i needing to go through 3 filters cause i know on cummins the run there owne line to the cp3 ??? any help would be awsome !!!!!
Thanks Casey Crider 918-314-4712

just run a new line from the pump to the inlet on the cp3,or just remove the filter housing,and hook them to lines to each other its as easy as that

 

[crider4_6]

thanks i just a broke farmer that needs to save 50 bucks on a service...
o fyi i built this trk it was a role over

 

[1lowmax]

How long did it take to install I'm going todo mine this weekend . I got 06 lbz ccsb. Hope i don't have to remove the bed.

 

[radix7508]

Has anyone encountered a leak at the fitting for the fuel return going to the tank? I installed my ADII several months ago and the fitting at the pump that routes the excess fuel back to the tank inlet leaks. Is there supposed to be a seal on that hose prior to putting it into its seat? I have checked it several times and the fitting is seated appropriately in its socket.

 

[1lowdiesel]

Has anyone encountered a leak at the fitting for the fuel return going to the tank? I installed my ADII several months ago and the fitting at the pump that routes the excess fuel back to the tank inlet leaks. Is there supposed to be a seal on that hose prior to putting it into its seat? I have checked it several times and the fitting is seated appropriately in its socket.

There is an o-ring inside that quick connect fitting. Are you sure it's from the ftting and not from just above it where the rotor cover is? Spray it down with brake clean then run the truck to see where the drip is. If it's an ADII check the two little plugs on the bottom of the rotor cap, i've seen where a few of them were machined too deep and the plugs weren't tight enough.