Re: Galena National
Posted by Guscha On 2011/7/20 12:45:43
Quote:
John, thank you for taking the swing at this ball. The engine has
[OI IO IO][OI IO IO]
from the first to the last cylinder. I'm with the idea, that this valve arrangement has at least thermal aspects. If the engine designer tried to string out the outlet valves this would have been a creative possibility. On the other hand the heads have an imbalanced heat distribution. Well, no head gasket necessary, that tempers the wind to the shorn lamb, so to speak, since the head gasket would be the weakest link.
Thanks again John!
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Gerd, may I take a swing at this ball? I believe the valve arrangement is to have no two exhaust valves next to each other. Possibly, the thinking was that having two exhaust valves closely situated would result to too much heat in a small area. Two intake valves next to each other would not cause excessive heating of the area. Engine metallurgy at that time was developing to cope with increasing power demands and hence more heat generation. Let's see what the experts say about this.
(o{I}o)
Edit: Cylinders 3 and 4 do have adjacent exhaust valves, but they are in different block castings.
Edit, edit: Plus the same casting could be used for both cylinder blocks.
John, thank you for taking the swing at this ball. The engine has
[OI IO IO][OI IO IO]
from the first to the last cylinder. I'm with the idea, that this valve arrangement has at least thermal aspects. If the engine designer tried to string out the outlet valves this would have been a creative possibility. On the other hand the heads have an imbalanced heat distribution. Well, no head gasket necessary, that tempers the wind to the shorn lamb, so to speak, since the head gasket would be the weakest link.
Thanks again John!
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