Recent content by Wreckclues

The whatsit appears to be a pressure regulator. The top part vents freely to atmosphere. I filled the lower part with penetrating oil and charged the vent lines to 15 psi. Observed air fizzing through the oil. See attached video . So this isn't a static situation and the length of tubing...

Just checked the Manual Fig. 46 TM 9-2320-260-20P lists the assembly as "vent". Parts list doesn't get into a lot of detail of the "whatsit", looks like the pipe bushing fits into it, but it's not shown.

Guess that degree in Marine Biology finally paid off...:unsure::rolleyes:

So if the "Whatsit" isn't venting then the fuel vapor in the tubing is in a static system. If I'm reading Pascal's principal correctly, the pressure at the measurement point (the "Whatsit") will be the same as at the source (the fuel tank) regardless of tubing length, because pressure in a no...

After making more twists and turns crossing port to starboard my line plumbs into this "doohicky" or perhaps it's a "whatsit"? At least now I have a port to blow air through to clear the line.

Now I can't get that image out of my mind...thanks JD :oops:

Here's the link to the NSN 2910-00-409-4016, Part Number 11648586 fuel tank advertised on Eastern's website. Aside from the capacity, dimensions, position of the filler hole and fuel gauge sender it looks nothing like the tank I purchased. With that said it was the only 78 gallon tank they...

Aside from "DO NOT FILL ABOVE THIS LINE TO ALLOW FOR EXPANSION" There's nothing on the tank. The invoice from Eastern Surplus lists the National Stock Number as 2910-00-409-4016, Part Number 11648586, identified as coming from an M809 series 5 Ton truck.

Before I modify the M39 tank to vent like an M809, how did the M39 tanks vent?

Long story short, the fuel tank on my M813 rotted out, check out my recent post on "What have you done to your 5-Ton" Pictured are my old and replacement tanks side by side. The dimensions are the same just the fuel pickup points and plate size are different and there are no vent holes...

Pulled the fuel tank on my M813 this weekend preparatory to a new...ish one coming up from Eastern Surplus. Used a Rube Goldberg suction rig to drain the last of whatever was in the tank because fuel it was not. Couldn't figure out why my "fuel" was always opaque. The tank rotted out under the...

Found this unit in "Cummins Diesel Engines Unit Shop Manual...Bulletin No. 3379084" Labeled "Manual shut-down valve" but whenever I search for one all I can find are the emergency shutdown valves. Looks like a modified solenoid. Does anyone know where I can source one of these?

Too funny, when I was airing up last year, found one of the duallies had zero air pressure but wasn't flat. As far as I could tell it had always been that way with me repeatedly crawling over a stone wall in my yard and driving around town...go figure. :)

Update: Tearing into my checklist I found that the gasket between the fuel filter bell housing and the upper part may not have been diesel certified, it had swollen to the point that it no longer fit the groove. Also found the water trap petcock was clogged solid. Currently waiting on new...