| 摘要 |
A measurement platform for an overhead cam shaft type internal combustion engine having at least one piston reciprocable within a cylinder formed in a block; an intake valve and an exhaust valve for the cylinder, wherein intake and exhaust cam lobes on the cam shaft engage upper ends of respective intake and exhaust valve stems, the platform comprising at least one relatively rigid bridge component including a pair of mounting flanges at opposite ends thereof, the mounting flanges having fastener holes aligned with fastener holes in the engine head on opposite sides of the cam shaft, the relatively rigid bridge having a plurality of holes therein adapted to support one or more measuring devices adapted to engage the intake and exhaust cam lobes on the camshaft.
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