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It's the isocyanates that are most dangerous in polyurethane paints. They stick instantly to wet surfaces such as your eye balls and the insides of your lungs.

If the bearing bore is too small you simply hone it on the line hone machine. You won't touch the rear seal bore. That goes out of round when you mill the caps to reduce the bore diameter.

You can jump with a pair of jump packs or you can also use one jump pack and another 12v vehicle. Same with two jump packs, put each source on a battery.

Caterpillar DEAC is the only conventional coolant that is still readily available that I am aware of. Caterpillar SCA can be used with straight water if you don't need antifreeze. Mix at 16:1. Caterpillar ELC is an extended life coolant with nitrites. Sometimes the only way you can figure these...

I recently have experienced a squeak on a new engine that roasted a pushrod immediately during run in. Pull the valve cover(s) and run the engine. Most can do idle without making too much mess.

"I also found mention of too much grease overheats from churning and lack of a place to go when it expands from heat, causing more resistance and more heat. So, there is a possibility of too much grease." That's a high speed problem such as electric motor bearings. Wheel bearings don't rotate...

You need to use an inorganic zinc coating. If you simply powder coat any defect in the coating will lead to a failure. Only inorganic zinc can protect the coating adjacent to a defect. ALL coatings have defects.

If you want to quantify the capacity of a battery you need to build a discharge curve. This can be as simple as putting a 10 amp load on the battery and taking a voltage reading every 10 minutes. Some industrial chargers can do this automatically but we can't afford those. In my experience...

The brass aftermarket radiators were junk. I'll bet the aluminum is better. I am currently running the aluminum with plastic tanks after my first aftermarket brass unit died only a few years old. Aluminum heater cores are another problem. Cavitation wore through one opposite the inlet hose...

If an injector line is leaking it won't make pressure to pop that injector. That would explain the roughness. Good luck getting a wrench on the bottom lines with the rest installed. They come off in pairs. Install and fully tighten two at a time. I forget the exact order.

I put the dust seal on the piston and stretched it until the caliper side was below the piston. This let me place the seal in the groove and then push the piston in. This is the dust seal, the piston seal was in its groove from the beginning.

There are no differences in components between a DOT 3/4 and DOT 5 brake system. All of the materials are the same so you can run either fluid system. It's all EPDM rubber. But! I feel (not know) that the combination of the two fluids is harmful. I don't have proof to back this up but I've seen...

Yeah, I'm really on the fence with the DOT 3 conversion. I'm annoyed with myself because I've done the brake system one item at a time over 10 years. Master cylinder, rear cylinders, and now front. I've never had a good opportunity to just swap everything. Oh well, it's 37 years old and still...

If you're running DOT 5 brake fluid it's probably time you opened and cleaned your calipers.

Well gosh darn, I'm full of manure. I just popped the inserts out of my original 1986 block and it has dates ranging from 1981 to 1986. Never seen that before. My 6.5 engine was all 2004. The factory service manual is available online and describes the markings on the block in relation to the...

Those bearings have two different dates on them, 81 and 85. No way the engine came new with those.

Does anybody know the name of the fittings where the oil cooler hoses tie in to the aluminum crossover pipes? The 6.5 GEP block has 1/2 NPT holes and the 6.2 is 3/8. No big deal, that's what bushings are for. The trouble is one of the hoses interferes with the van style exhaust manifold. A 45...

I had a good conversation about this with my local Yamaha dealer. The Japanese motorcycle manufacturers use select fit pistons and cylinders. Cylinders are A-D with A being largest and D being smallest cylinder The dealers stocks D pistons as they are the smallest and fit all bores. The point...

Technically, it only takes two fuses to fully protect a 3 phase ungrounded circuit.

I want to fill in some gaps on coolant tech. First, don't judge a coolant by its color. Primarily there are two types, one is sodium nitrite based and the other is carboxylic acid based with the latter being the newer tech. They both work well but the sodium nitrite based coolants require...