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GM has been using gelled calcium sulfonate as an undercoating lately. It's self-healing and can be applied to marginally prepared surfaces. https://www.daubertchemical.com/store/product-list/corrosion-prevention/nox-rust-x-121b It's wax-like so you don't want to use it in places it might rub...

The heater just needs power. If it's present your current power circuit will run it. I think the WIF sensors are continuity based so any filter that uses a continuity WIF sensor will work. Some filters use floats and those may work but I'd have to do some investigation on that. The float closes...

I just had a Cat 3516 with an intermittent no start. We noticed a hard spot while cranking. Identified cylinder 16 as being at TDC during hard spot. Pulled the injector and found a rolled o-ring. Cat wanted to replace all injectors at $1500 a pieced plus labor.

On a closer look of the left pic I see a third crack. I would also condemn that pre-cup as that could allow a large piece to break away and damage the cylinder.

In the right pic the pre cup is starting to lose material. That's bad. Do replace that one. In the left pic, that cracking is normal. In turbo machinery we call that stress relief cracking. The general rule is that you don't want the cracks to extend across the head gasket fire ring. I think...

The 1/2 ton springs are the wrong length. A 1/2 ton has 3 leaves, the K30 has 10. I think I'm going to remove leaves and then use 2" lift blocks.

A stripe at the end is all I want to see. IEEE45 cables are often not color coded by usual standards (red is ground for single phase AC) but will have a number and the color printed in letters on the wire. I guess this isn't enough so many will tape the entire length of the exposed wire. I hate...

I want to convert my M1008 to a 1/2 ton while maintaining height. I can't find a shop that will re-arch springs. I'll need to take 7 leafs out which causes significant height loss. Maybe it can't be done? My engineering background says this practice shouldn't be possible. Guess I'll use blocks...

Water shooting out? Engine is dead. You don't get a lot of time from when a cylinder fills with water before you must have the engine running again to prevent corrosion from causing irreparable damage. Pull the heads ASAP for the best chance of saving the engine if you can't start it.

How do you feel about the 6L80? It seems like it would be an ideal alternative to the Allison.

I do quite a bit of electrical work from time to time. My industry isn't very regulated, oddly. There isn't exactly code but there are standards. The standards do explain how to do things correctly and is simple. IEEE 45 is our most relevant standard. Everybody tapes cables where they strip them...

The more gears the merrier. The direct injection diesel engines of yesteryear had very narrow power bands, basically 1800-2300 rpm. It took a lot of gears to keep it there which is why big diesel trucks have 18 speed transmissions. The 12V Cummins engine isn't quite so limited but they still...

With the exception of the volt meter I believe all of the CUCV dash runs in 12V

I usually do one pass with the roller and then tip immediately.

Try roll and tip. Apply with a foam or shirt nap roller and immediately knock down the orange peel with a dry brush.

You can calculate this. The batteries have an amp-hour capacity. If it takes 10 amps to keep your truck running and you have 100Ah capacity then you can assume you can run for 10 hours. This number decreases as the batteries age. Batteries in series have the same Ah as a single battery...

I think you really need to look at the weight of the rotating assembly and it's ability to shock load the transmission. Or, consider the duty of the synchronizers. They may not be able to handle all of that inertia.

Those must be important because the blackout switch doesn't turn them off 😉

100 mph was the standard speedo for trucks before the oil embargo. My 1976 short wide would point that needle nearly straight down. I estimate 130 mph 😈. My sister's 1983 Mustang GT had a 85mph speedo. My problem on my CUCV is that the bluish plastic part behind the gauges is disintegrating. I...

I'd rather it be off by a lot than a little. That way you know something is wrong.