air dog and donaldson p551315

[O2ShootTheJ]

Hey guys, went to replace my stock airdog filter w/ the donaldson p551315 today and it wouldn't seal. Fuel just kept running out and into the bucket (no the truck wasn't on). I ended up having to put my dirty stock filter back on for now. Any advice is appreciated I really want to get a clean filter on there.

 

[White_monster]

Did a seal get left on the pump by accident.

 

[WoodBoy]

:whs: Did the stock seal come out with the filter

 

[O2ShootTheJ]

yea i'm pretty sure it was in the air dog filter.

 

[Casey02L]

Hey guys, went to replace my stock airdog filter w/ the donaldson p551315 today and it wouldn't seal. Fuel just kept running out and into the bucket (no the truck wasn't on). I ended up having to put my dirty stock filter back on for now. Any advice is appreciated I really want to get a clean filter on there.

Check to make sure the bracket that holds the air dog to the truck isnt hitting the Donaldson filter. I had to move mine a little.

 

[O2ShootTheJ]

thanks I will look into that

 

[GROSSpolluter]

I ordered new air dog filters and they don't fit right. The center of the filter where the threads are is too high and it hits the plastic tabs that are on the air dog. Looked at my old filter and it sets lower and the holes are smaller where the check valve flap is. Kinda Wierd. Same p/n but the new filters have grey printing vs the blue . Check that maybe your filter is different.

 

[O2ShootTheJ]

its not the factory AD filter, it's another brand that filters better. Although I'm going to have to throw my spare AD filter in for the time being.

 

[GROSSpolluter]

I know...put them side by side and see if the threads set higher then the other.

 

[O2ShootTheJ]

is there any way to stop the fuel dumping out of the air dog when I pull the filter out?

 

[GROSSpolluter]

Mine didn't leak bad maybe a clean bucket under it and dump it back in the tank when your done.

 

[David S.]

how often should you replace the filters on an airdog?

 

[O2ShootTheJ]

i emailed them they said 15,000 for fuel filter and 50,000 for water separator. I just threw a replacement air dog brand filter on for now

 

[pog]

I think I'd do it sooner than their numbers. That seems like too many miles for filters.