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Submitted 260 days ago...

DoorLatch258

DoorLatch258

New User (1)

What is the construction of dohc engines and what kind of motorcycles use these engines more?

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Answer 1 / 1 - Submitted 39 days ago...

Kneedragon

Kneedragon

Beginner (30)

DOHC stands for Double Over-Head Cam. Two strokes don't have cams. Four-strokes have valves, and need cams to open them. Cams may be mounted low, and use pushrods and rockers, or high. An Overhead cam puts the cam above the combustion chamber. This is generally called Single Over-Head Cam. It still needs rockers but not pushrods. A double overhead cam usually opens the valves by bearing directly on them.

Most modern fourstroke motorcycles are DOHC.

http://en.wikipedia.org/wiki/DOHC#Double_overhead_camshaft

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