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 heat from {HEAD ~ 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 heat from { HEAD ~ the exhaust manifold } 18
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