Glad the pistons are the same height!

Apologies for using the term "ground strap." Too many years of British car ownership. (How's earthing strap sound? lol) It means: The large ground cable, that goes from the transmission bell housing, to the firewall. The battery will have a ground cable that goes to the body.

It's been a loooooooong time since I was under the hood of a 220 Diesel, so take a look at how your car's battery ground cables are routed and connected. What I describe above is a typical connection style, where the battery connects to the body, and then the body connects to the engine/transmission assembly, via one of the bell housing bolts. The reason why the ground cable from the body to the engine/trans is important is because, when you use the glow plugs, the current draw is extremely high. In a gasoline car, it would be the starter cranking that's the highest draw. Without that large ground strap, the current flow to ground will seek out anything metal that's grounded, like throttle cables, speedometer cables, temp sensor wires, etc. It will turn them into glowing red-hot wire, and guess where those all go.......inside the dash, setting the car on fire at a location that can't be extinguished.

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