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EarlyBay Forums
General Earlybay Chat
[Poll] Fan Shroud Flaps and Thermostat
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<blockquote data-quote="Clem" data-source="post: 606108" data-attributes="member: 15"><p>I dont think an engine will disasteraously explode/implode without thermo/flaps, but over sufficient time, I expect there would be a difference in wear rates of components. Possibly not an issue for the light use that many buses get, and the higher incidence of rebuilds that occur for performance gains that were not anticipated when these engines were designed.</p><p></p><p>The flaps direct the cooling air where its most needed during the warm up period and then focus its direction at optimum running temps - removal of the flaps means just a random load of air flying about - not a disaster, but not as designed. Same principal with the heat exchangers, not only do they provide heat but they also take heat away from the engine in a way that j-tubes cannot.</p><p></p><p>I get the logic regarding poor heating in the winter but I'm sure that's more to do with the heat loss over the distance from engine to dash, through leaky unlagged pipes outside rather than real ambient temperatures. Run an engine for five minutes in the deepest winter and there is still no way you want to rest your face on the exhaust :lol:</p></blockquote><p></p>
[QUOTE="Clem, post: 606108, member: 15"] I dont think an engine will disasteraously explode/implode without thermo/flaps, but over sufficient time, I expect there would be a difference in wear rates of components. Possibly not an issue for the light use that many buses get, and the higher incidence of rebuilds that occur for performance gains that were not anticipated when these engines were designed. The flaps direct the cooling air where its most needed during the warm up period and then focus its direction at optimum running temps - removal of the flaps means just a random load of air flying about - not a disaster, but not as designed. Same principal with the heat exchangers, not only do they provide heat but they also take heat away from the engine in a way that j-tubes cannot. I get the logic regarding poor heating in the winter but I'm sure that's more to do with the heat loss over the distance from engine to dash, through leaky unlagged pipes outside rather than real ambient temperatures. Run an engine for five minutes in the deepest winter and there is still no way you want to rest your face on the exhaust :lol: [/QUOTE]
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[Poll] Fan Shroud Flaps and Thermostat
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