What To Know About Diesel Rotating Assemblies. Whether you think diesel crankshafts are the same as or different from their smaller gasoline counterparts, you're right. Diesel crankshafts and rotating assemblies - like their cousins in the gas engine - turn a linear motion from combustion into a rotating motion that can move a vehicle, supply power through a generator, pump oil from an underground or otherwise give measurable activity. They require balancing and attention to selection of appropriate components. But doing so requires a lot more of everything. They're big, they're heavy and they're expensive. They may be harder to find in certain applications. But whether your shop handles heavy-duty diesel engine repair, light or medium duty diesel service or you build engines designed to produce as much performance as possible, understanding the crankshaft's importance in the equation - and your abil- ity to affect that - can be a rewarding challenge.
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