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Boxer engine, 250 cm³, functional valves.
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Information (Please read it)This model features a 2-cylinder boxer engine with two valves per head operated via pushrods. The camshaft is located below the crankshaft and is driven by a spur gear.camshaftfront view with spur gears The bearings used in this model were sourced from this user. However, you can also use real steel bearings. The crankshaft uses 6004 bearings, and the camshaft uses 608 bearings. The cylinders and connecting rods are connected with M3 screws. The stand is attached to the housing with M4 screws. You can use countersunk screws with Phillips heads or external hex screws. The engine can be driven with a crank on the clutch side or via the camshaft gear. When driven via the camshaft gear, the engine turns quickly, allowing a clear view of the valve lift operation. crank on the clutch side When driven via the camshaft gear (real speed)<img src="https://makerworld
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