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Author Topic: 8V92 fuel fitting  (Read 480 times)
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Posts: 280

1973 MCI MC-7 Combo


« on: July 14, 2014, 04:59:25 PM »

You may remember my post a while back about my fuel leak.....I had a 1/4" brass nipple as the fuel inlet fitting on the driver side head on my 8V92.  The brass nipple cracked in half and was leaking fuel down onto my exhaust manifold.  I was very lucky that it did not break off completely.  In that thread, Clifford said that the correct fuel fitting was a long hex nipple and he thought it was made by Parker.  I searched on the web for this and had no luck and replaced it with a regular steel nipple.  I always respect Cliffords opinion cause he has probably forgotten more than I will ever know about these engines so I kept looking for the right fitting and I found an old Parker catalog that had them as a part number 4-4 MHLN-4.  I took this to my buddies at the local NAPA store and they found a place that carries Parker and they crossed it to a new number 1/4X4.0 FFF-S and I managed to get one!  Since my engine is still apart while I replace all the coolant hoses, I decided to go back and change the fitting to the correct one.  You could argue that a standard steel nipple is plenty strong enough in this application and your right but I enjoyed the challenge of finding the right one!  Its also easier to put in and take out since it is a 4" long full hex fitting.

I attached some photos.

Bruce & Nancy Fagley
1973 MCI MC-7 Combo Freighter
450HP DD 8V-92T 2000 Reman
HT 740 Allison
Woodbury CT.
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'60 PD4104-4355(sold) Now Freightliner Conversion

« Reply #1 on: July 14, 2014, 05:04:14 PM »

Persistence pays!  Good job!


Gary D

USBUSIN was our 1960 PD4104 for 16 years Ustruckin' is our 2001 Freightliner truck conversion
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Posts: 14967

« Reply #2 on: July 14, 2014, 05:07:24 PM »

There you go Bruce that one won't break  Roll Eyes

Life is short drink the good wine first
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1980 MCI MC-5C

« Reply #3 on: July 14, 2014, 05:18:36 PM »

I'm gonna check tomorrow and see if that's what I have!  good job!


1980 MCI MC-5C, 8V-71T from a M-110 self propelled howitzer
Spicer 8844 4 speed Zen meditation device
Tatamagouche, Nova Scotia
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