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And that is another battery failure mode. You know the difference between a 36 month battery and a 48 month battery? It is the depth of the battery sump under the plates where the flakes and scale from the plates collect.:) This scale builds up until it shorts the plates… So for all you...

The fuel lines are -6 JIC…

Got a break in the rain showers long enough to run a load test. Needed to run the truck anyway:) Every alt I have ever worked with had a spec of +/- 0.5V. I have always assumed that to include/apply up to full load/output, and that has always been my experience. Setup: I no longer have a...

The seal between the primary filter and the water separator bowl is also a common place for leaks, that and cracks in the old bowls. You need to be able to pull a Vacume from tank all the way to the lift pump on the governor…

Should be no problem running without it. Are you sure that dash light is “CTIS OFF“? There is a CTIS overspeed light in the dash and CTIS will light this light when you go too fast for a particular tire pressure, then it will initiate an automatic inflate to get to the appropriate pressure for...

Yea they ran out of the older alts at some point, and you will find some A0 trucks with the newer alt if they had a failure…

@chucky its an A0, so probably no lights on the alternator/regulator… A bad connection can do the same thing to the run solenoid on the governor…

The primer doesnt have a “plunger” other than that handle that is part of the diaphragm assembly. If you hold a seal on the inlet and push the black button in, it will stay in if it is sealed. Just took a vid of mine, stays in untill I remove my finger… give me a bit to upload it… ok, here...

You should be able to get fuel at every fitting after the primer when pumping. If the primer is working, you should be able to pump fuel completely thru the system in under 40 or so pump strokes if the filters are full of fuel. In the first vid I showed a plug on top of the secondary filter...

It does sound like fuel. If you pump the system full of fuel you should have a firm primer bulb, as you hydraulically push fuel past the pressure regulator. You should be able to hear fuel falling back into the tank from the return line as you pump if its quiet. it is also redicously easy for...

Battery AH capacity is a factor of the volume of electrolyte. A battery with 1 gallon of electrolyte and 100 sq/in of plate surface area has the same AH capacity as a battery with 1 gal of electrolyte and 1000 sq/in of plate surface. Plate surface area determines current capacity(both in and...

Should be top and bottom where large alt and battery leads attach. The load terms should be the middle pair with only one large lead on each terminal. Should also be able to measure at batt terminals... unless you have really bad connections between alt and batts, should not have significant...

Thats how i would have found it... the cat sensors are not listed in the mil documentation and the cat coolant sensor does not appear to have a pigrail... If it is for the ether, then it is probably a 35F switch(mine was)...

If your alt is making 14.1/28.2, it should be charging your batteries just fine at ~1hr run time per day. Start the truck, are you getting 14.1/28.2 AT THE ALT TERMINALS, and at the battery terminals? If not, either the alt is overloaded(more than 100A combined load), probably due to...

I would suspect it is the sensor for the ECU. I just went to look for wire/connector info and discovered the A1 and A1R diagrams don’t show the engine temp sensor connection to the ECU… got wire numbers off that sensor and the one to the rear of the housing?

It is either a gauge temp sensor or a temp switch or an ECU coolant temp sensor. On the A0, they put a gauge sender on the rear side of the housing(upper port), off of a T that circulates coolant to the expansion tank. The heater feed is the lower port, both can be seen upper left in your...

That wire to the AC terminal on the reg feeds RPM info to a LBCD, which the A0.5s dont have(no LBCD, remote or manual battery disconects)... so no youvare not missing anything if you dont have a LBCD...

What causes sulfation: when you draw electrons out of a battery the plates obsorb sulphur ions from the electrolyte. The deeper the discharge the more sulphur is absorbed. When you add electrons to a battery it pushes the sulfur back into solution. When the plates hold sulphur too long it...

I have seen some of the solargizer panels installed on top of the Air op hydraulic pump or air filter as they are not that large. Plenty of room up on the roof of the cab...

Here: https://www.steelsoldiers.com/threads/fmtva1-electrical-schematics.158229/