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Compression = heating - Expansion = cooling

October 2 2011 at 7:33 AM
Bill K  (Login needmoretoys)
Crosman Forum Member
from IP address 24.24.95.15


Response to Pumping oil into the port of a springer causes dieseling..

When a gas is compressed, it is heated. When it expands, it is cooled. The gas in a PCP or CO2 gun is already compressed, so there is only cooling when it is shot and expands. In a springer, the air is rapidly compressed, resulting in very hot local temps when it is shot. It is this local gas temp that ignites the oil.

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2 Mike Melick tuned up QB79
1 Mike Melick tuned down AR2078A (60 shots/CO2)
3 pistols (Daisy, Gamo and Beeman)
4 other rifles (3 old springers and Daisy target)
Crosman custom 2400KT - 18" .177

 
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