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HPOP Plug?

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Old Jul 16, 2012 | 04:58 PM
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HPOP Plug?

2001 F-350 4x4
Lost the plug out of the top of the HPOP tank.
The little check plug , I took it out and dropped it into the engine somewhere never to be seen again.

Need the truck right away so ordering and new plug from the US isnt a option.

Does anyone know what size bolt with what kind of threads would fit?

The truck is needed and is in a remote camp up on the Alaska Hyw , so any info would be appreciated.
 
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Old Jul 16, 2012 | 05:15 PM
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I am not sure of the size, I hope someone on here does. Just an idea, what about one of those rubber oil pan drain plug repair plugs. The rubber one that you tighten the wing nut to expand the rubber.

I can pull mine and see if I can figure it out when I get home.
 
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Old Jul 16, 2012 | 05:17 PM
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Just thought, not sure if a bolt would seal it anyway without the oring.

It appears that it is the same size at the pressure port adapter

Fuel Bowl and HPOP reservoir plug
 
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Old Jul 16, 2012 | 05:18 PM
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ken im guessing you didnt check out dieselorings.com did ya?

heres the link: Fuel Bowl and HPOP reservoir plug
 
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Old Jul 16, 2012 | 05:25 PM
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After a quick check on riffraff it appears that the thread would be 1/8" FNPT

Riffraff Diesel: Pressure Port Adapter - Straight 1/8 FNPT
 
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Old Jul 16, 2012 | 05:32 PM
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The thread size for the HPOP reservoir port is 7/16” -20 TPI. It is a #4 ORB (o-ring boss).
 
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Old Jul 16, 2012 | 05:34 PM
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Originally Posted by mueckster
The thread size is the HPOP port is 7/16” -20 TPI. It is a #4 ORB (o-ring boss).
See I knew someone would know. The 1/8 fnpt is on the other end of the adapter, that makes sense.
 
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Old Jul 16, 2012 | 06:19 PM
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Originally Posted by indyF-350psd
ken im guessing you didnt check out dieselorings.com did ya?

heres the link: Fuel Bowl and HPOP reservoir plug
I need to do something today .
Ordering isnt a option unless all else fails but thanks.
 
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Old Jul 16, 2012 | 06:20 PM
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I dont think mines got a o-ring
 
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Old Jul 16, 2012 | 06:30 PM
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Can you find a short bolt that size and fab a gasket to seal it?
 
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Old Jul 16, 2012 | 06:35 PM
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Originally Posted by Vinford
I need to do something today .
Ordering isnt a option unless all else fails but thanks.
missed that part....you have a spare fuel bowl laying around?
 
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Old Jul 16, 2012 | 06:37 PM
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Keep looking on the motor. Maybe you'll find it.
 
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Old Jul 16, 2012 | 06:56 PM
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Originally Posted by mueckster
The thread size for the HPOP reservoir port is 7/16” -20 TPI. It is a #4 ORB (o-ring boss).

If I was buying a bolt from a bolt outfit I would ask for a 7/16-20 TPI?
Whats the TPI?
What type of threads is what I need to know I think.
 
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Old Jul 16, 2012 | 07:04 PM
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tpi

threads per inch
 
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Old Jul 16, 2012 | 07:23 PM
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Originally Posted by spooky01
threads per inch
I wonder if its metric or imperial threads?
 
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