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Thread: Does your C180 cylinder baffle look like this?

  1. #41

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    What about #6? I've had 3 or 4 versions of a plate over #6, also because Steve K. suggested it.

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  2. #42
    WhiskeyMike's Avatar
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    I had an O-520 in an L-19 Bird Dog and could never figure out why???? they put the oil cooler in front of the cylinders, blocking the cooling air, and perhaps pre-heating the air going over the cylinders? Am I just being stupid, or was this a bad idea?

  3. #43

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    The cooler doesn't block any air. There's a baffle behind the cooler to prevent air from going down in front of #5. The cooling of #5 comes from the pressure cowl doing it's job. Ram air to an exposed head isn't very important judging by how both my front cylinders are blocked and I have really even temps as a result. The dam in front of #6 improves the cooling of #4 in my engine. Maybe I'll pull the shroud on #5 and see if the temp distribution changes. Naw, too much work. It's been a journey to get my temps where they are. I'm not messing with it.

    The question remains, does the #5 shroud increase or decrease the CHT at #5?

  4. #44

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    Quote Originally Posted by stewartb View Post
    The question remains, does the #5 shroud increase or decrease the CHT at #5?
    The SB discusses this. Don't have the # handy right now, but they are available free on Cessna's site.

  5. #45

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    A brief search of the Skywagon site says #5 shroud reduces #5 CHT by 25*. That's what I remembered being told when told to add it.

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