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This is the place where the majority of the warbird (aircraft that have survived military service) discussions will take place. Specialized forums may be added in the new future
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Ranger engine hotspot/Gipsy manifold heat

Thu Mar 08, 2012 10:29 pm

It appears that both engines had a system on the induction manifold where some of the exhaust was routed to an area just downstream of the carb in order to heat the fuel/air mixture piot to it entering the cylinder. Most engines now have this system deactivated due to corrosion issues.

Anyone know why it was used to begin with and why it is no longer necessary?
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