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When you buy the test kits you have to buy a special fluid for diesel engines. They don't have less CO2 in their combustion products than gas engines. With that said, the only time I have tried to use a kit was on a Cat 3512 that was blowing bubbles. The test never indicated anything. We used...

I think they use grease for damping which gets hard over time. I don't know what viscosity.or consistency grease should be used but if you never want to do it again Krytox GPL 200 series should have what you need.

That's exactly what my 6.2 was doing. It would push coolant into the reservoir when running but would hold pressure for months when the engine wasn't running. This kept it from pulling coolant from the reservoir. It ran this way for quite some time but gradually got worse. Disassembly revealed...

Pshhh, I've done 850 miles in one day in my M1008. 🤪

That means your Gen 1 isn't working.

There are inorganic aluminum-zinc coatings that are far superior to plated fasteners and perform almost as well as stainless with less seizing issues.. Dacromet is a common trade name. https://www.nofmetalcoatings.com/ I am a little embarrassed to share the link to their website. It has...

The injection pump will cause over fueling and black smoke if it has been turned up or built to a higher output spec which is quite possible to have been done during a rebuild.

On the civvy engines 88.5 and earlier had long bodies and later had short. Your application likely has shorts. You can tweek the injector lines to fit shorts if you have to.

Some engine manufacturers want sodium nitrite in the coolant to prevent liner cavitation. These are the HOAT coolants. If you have a Caterpillar dealership nearby buy their ELC coolant. It is a HOAT. You will not find an IAT coolant at an automotive parts store. If for some reason you want to...

The Nox-Rust product is a newer technology based on gelled calcium sulfonate. It resembles a wax or bitumen coating but it is not. The gelled calcium sulfonate coatings are not oily so they don't mess with painted surfaces but they also don't soak into crevices like the Fluid Film products do.

The epoxy zinc on blasted metal is by far the best route but if you're patching up you're existing coatings under your truck there is a product from Daubert called Nox-Rust 121B. This is the "wax" coating used by GM on some of their frames. It's suitable for marginally prepared surfaces. It's...

We do oil samples in our fleet because we can show them to auditors. The like to see them but they don't provide much value to us as operators. Coolant samples are much more preventative but it's very hard to convince the oil is the most important fluid establishment that this is the case. Your...

It's very hard to start a diesel engine after water ingestion. A recent example I had was a Cat C9. The water cooled aftercooler failed and fogged the engine with so much water the engine shut down. I hired the local Cat dealer to replace the aftercooler which they did but could not get the...

Your glow plugs were bad. That's what probably caused the no-start.

Just back the plug off a few threads. If there is water in the pan it will drip water first. Don't bother with oil samples. You don't have time. The goal here is to get the engine started as soon as possible. Crack the drain plug and pull the glow plugs.

For piston rings in general, it appears that the bevel should be on the top unless the ring has a tapered face.

24V DC has a tendency to weld switches and relays shut.

Whatever you do, work fast. Get the engine running ASAP to stop the corrosion. Important, before you start cranking with the starter crack the drain plug. If you've got water there you'll want to change the oil first.

Resistors NEVER fail in a mode that causes full voltage to pass through. If you are getting full voltage through that means all of your glow plugs are dead.

Sounds like your batteries are dead. How did bypassing the glow plug resistor solve your problem? Did you install 24v glow plugs.l?