Neutral Observer, has answered the question to my satisfaction. Neutral Observer 4 weeks ago Each cylinder of that Packard V12 had four valves: 2 intake, 2 exhaust. Each of the exhaust valves had an individual exhaust pipe. 12 cylinders X 2 exhaust pipes/cylinder = 24 pipes, or 12 pipes on each side.
@@simonlane1277 No. This engine was developed by Packard alone before war time and though it was intended for aircraft, it handily fit the bill for use in PT boats and actually saved Packard from losing a gamble with this engine otherwise. This engine is ~2500 cu. in. displacement, much larger than the Packard Merlin of WW2..
I am confused, there are comments that it is a Packard V12, if that's the case can someone explain to me why there are twelve exhausts on both sides of the engine, 12 exhaust ports each side equals 24 cylinders, so it's a Packard 42 litre V24.
Each cylinder of that Packard V12 had four valves: 2 intake, 2 exhaust. Each of the exhaust valves had an individual exhaust pipe. 12 cylinders X 2 exhaust pipes/cylinder = 24 pipes, or 12 pipes on each side.
G Lukes 1 second ago Neutral Observer, has answered the question to my satisfaction. Neutral Observer 4 weeks ago Each cylinder of that Packard V12 had four valves: 2 intake, 2 exhaust. Each of the exhaust valves had an individual exhaust pipe. 12 cylinders X 2 exhaust pipes/cylinder = 24 pipes, or 12 pipes on each side.@Charles Henley
