P38 air suspension reservior inlet? - Defender Source
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  #1  
Old October 24th, 2015, 12:26 PM
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Ben Goodwin
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P38 air suspension reservior inlet?

Does anyone know off hand what size the inlet fitting on a P38 air tank is? It is not a 1/2" npt so I am guessing it's AN?

It seems way too nice a little tank not to repurpose for on board air!
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  #2  
Old October 24th, 2015, 12:30 PM
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Quite possibly BSPT as I do not believe LR uses NPT anywhere on the truck.
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Old October 24th, 2015, 02:42 PM
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Ben Goodwin
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Quote:
Originally Posted by crown14 View Post
Quite possibly BSPT as I do not believe LR uses NPT anywhere on the truck.
The label on the tank warns that it is a sealed dry air system with an inline air dryer so I thought it might use AN cooling system fittings.

Either AN or BSPT I think I am just going to weld an NPT over the existing port.
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Old October 25th, 2015, 12:59 PM
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on my classic I removed one of the plugs at end of tank, it is npt. then used a reducer in order to fit a 3/8 quick release line from an arb compressor.
I left the factory line intact...
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Old November 1st, 2015, 03:53 PM
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On the classic tank from a 93 LWB that I have, the threads are 10mm 1.0 or damn close to it if not that.

Does anyone know what size alan key the bottom drain plug is?
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Old November 1st, 2015, 04:30 PM
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Quote:
Originally Posted by cgalpin View Post
On the classic tank from a 93 LWB that I have, the threads are 10mm 1.0 or damn close to it if not that.

Does anyone know what size alan key the bottom drain plug is?
C, I believe it is 8 mm allen, don't buy it I have a heavy duty kit...
let me know when you want me to swing by with it...
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Old November 1st, 2015, 05:35 PM
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Naah, I don't need you to go out of your way for this.

Are they measured across the flats? If so it's M12. The side on is 10mm across and I used a 3/8th on it.
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Old November 1st, 2015, 07:48 PM
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Quote:
Originally Posted by cgalpin View Post
Naah, I don't need you to go out of your way for this.

Are they measured across the flats? If so it's M12. The side on is 10mm across and I used a 3/8th on it.
I have always measured by the drive yes across the flats, when I was an apprentice someone told me to find a bolt to place in there, then look for the drive matching that bolt head and there is my allen tool size ... now a days that formula is more confusing than helping.
I have the gamut from 3 or 4 mm to 17 mm and standard size.. torx and security bit drivers...
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