fuel rail plug size - Ford Powerstroke Diesel Forum
 
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post #1 of 6 Old 05-20-2010, 11:45 AM Thread Starter
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fuel rail plug size

anyone know the tread size for the o-ring plugs in the back of the head on a 7.3?

2012 F-250 4X4 FX4, SCLB, 3:55's , Camper & Tow package, air lift bags and pump, Edge insight. Dark Pearl Blue.
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post #2 of 6 Old 05-20-2010, 11:57 AM
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cant remember for sure but i want to say 1/4 thread....but actually that sounds too small...maybe 3/8"?
Pull the front banjo fuel bolt and see. It will be the same.

2003 6.0 F350 dually on high cholesterol fuel (WVO)
2000 7.3 Excursion also on a high cholesterol fuel



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post #3 of 6 Old 05-20-2010, 12:01 PM Thread Starter
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the one in the back of the fuel rail that seals in th ends of the fuel rails with the 1/4 square drive loos like treads are 7/16 or metric

2012 F-250 4X4 FX4, SCLB, 3:55's , Camper & Tow package, air lift bags and pump, Edge insight. Dark Pearl Blue.
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post #4 of 6 Old 05-20-2010, 12:04 PM
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might be different than a 6.0?

2003 6.0 F350 dually on high cholesterol fuel (WVO)
2000 7.3 Excursion also on a high cholesterol fuel



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post #5 of 6 Old 05-26-2010, 09:14 AM Thread Starter
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7.3 12 mm x 1.75

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post #6 of 6 Old 05-26-2010, 09:16 AM
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Yes, different then a 6.0.

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