It should also be appreciated that the housing 20 is placed on or near {TAIL ~ the engine} 12 and, as illustrated in FIG 2, receives {HEAD ~ heat} from the exhaust manifold 18 
It should also be appreciated that the housing 20 is placed on or near { TAIL ~ the engine } 12 and , as illustrated in FIG 2 , receives { HEAD ~ heat } from the exhaust manifold 18
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