I Doubt very much that there would be any Colour to the combustion, let alone a yellow flame. The valve timing seems wrong. The exhaust valve opens late, and there appears to be no scavenging from the exhaust. ....It must be a mock up.
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Bluebell
Carrier Armoured O.P. No1 Mk3 W. T84991
Carrier Bren No2.Mk.I. NewZealand Railways. NZR.6.
Dodge WC55. 37mm Gun Motor Carriage M6
Jeep Mb #135668
So many questions....
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