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One could monitor spin on fuel filter blockage that way, and maybe the volume of the filter could act to dampen some pulsation, but it is hard metal piping from the filter to the injection pump, so more difficult of an install. But, aftermarket does make a banjo fitting for the injection pump...

The Bosch injection pump has a pressure relief valve on the return outlet side of the pump, built within the banjo fitting that the return line is connected to (front of pump). I believe that is rated to open around 25psi, therefore keeping about 25psi on the system delivery pressure between...

Mostly as received. Only thing I did was rubbed the lenses with 3M lens polish, but a few are still hazy. Night shot, cold start, idle:

A genuine Delco unit has "Delco Remy" cast into the rear housing, but they are not available new for $100 like the clones are. Have them exchange it for another, and put emphasis that is overcharging at 35V so they don't just test that it makes power and deny your claim. Your next one should...

Yep. That is a Chinese Delco clone (does not say Delco Remy anywhere on it). The regulator is bad on the unit you got. The China production plant probably just tests if the unit makes power or not, and it goes out the door. Spider doesn't test them prior to shipment. You could have a local...

Update to report that the "window" type lighting seems to be about the same intensity as the full clear case type, I was surprised. It illuminates same as the rest of the gauges, I'm excited. The resolution is so good that the needle dips 5psi at each and every trans shift point when...

Well put on WYSIWYG. Are you using a mil spec mechanical temp gauge? If so, what was it's original application, and how is the night lighting setup on it? Pic would be fabulous, thanks. I'd like to swap those next.

The bracket should look original, as it is a Cummins OE part. Did you have to change bolts or belt or did they both carry directly over? I have mine, but have not installed it yet, hence the questions. Flunky grounds will not create an electrical load. They mostly just contribute to...

Swapped out the electric engine oil pressure gauge for a mil spec mechanical one. VAST improvement in resolution and accuracy. Bought gauge on eBay, but was $70. Thread in 5T Mod section:

Having had enough of the low resolution and inaccurate electric engine oil pressure gauge, I purchased and swapped in a mechanical engine oil pressure gauge. This is a military part, spec'd for Willy's Jeeps and such, but this one has the windows in the case for lighting (M35A2 style?). Bought...

The voltage regulator inside the alternator is "stuck" on full effort. Either the voltage regulator is bad, or if the alternator has a remote voltage sensing lead, this lead is not reporting battery voltage correctly and the alternator is trying to boost system voltage until target charging...

Not a lot of info provided. Upon restart, does the cranking speed seem sufficient enough to start, yet it is not? If so, then the fuel stop solenoid is likely de-energizing due to low voltage which is a known issues with these. Have a buddy hold it in or zip-tie it into the fully retracted...

You're zeroing in on my exact concern. Sender and gauge both "work". With the combination of the angle fill neck not allowing a full fill (forced expansion room), and the sender not yet being calibrated (height via sliding sender bracket), my full fuel is at 3/4 tank, and the truck has run out...

How do you know your replacement engine is at 14 degrees? Did you measure this, the engine data plate says so, or somebody just says that is what it is at for the engine you acquired?

Replaced fuel level sender. New sender has plastic float, and is height adjustable via sliding bracketry and screws. It is working but not exactly accurate (ran out of fuel before reaching "E"). I once saw the adjustment procedure for this, and have not seen it since. If I remember...

I'd put a label that said "EJECTION SEAT" over the red switch cover.

No. I have a 4 pole gen head on a diesel construction site light tower that I use as my home standby genset, it is an 1800rpm Kubota D1105. It is no larger than the gen head as found on your typical 10hp gasoline portable 5000W 3600rpm genset. I have seen the generator (alternator) head of a...

So upon reading other forums where the Cummins 8.3L is used extensively (RV motorhomes), it appears that most of them recommend the injection pump timing be advanced to about 16 degrees to greatly improve mileage, and other mods will take a much better hold. It seems as if our MW injection...

I had pinion seals starting to leak on my M925A2. Removed all axle vents, confirmed they were clean and operating correctly, then changed over to open air vent tubes ran up the frame and such. Pinion leaks immediately stopped, and axles fluid level is correct. So, I presume the pinion seals...

If you want to double your mileage, sell the 250 engine and install the Cummins 8.3L. Mileage in the M939 series trucks goes from approx 4mpg to 10mpg when they made this change. Not sure of anything else that is able to double your mileage like that.