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Thread: Allison/RR 250-C20 Engine Coking
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Old 5th August 2019 | 08:25
  #11 (permalink)  
paco
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From: White Waltham, Prestwick & Calgary
"Mr Hughes, how can turning the engine over damage the wheels?"

Cooling too quickly. The purpose of the 2 minute rundown is to stabilise the temperature, not reduce it.
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