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Nose bowl cold air hole?

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16 May 2020 15:18 #1 by Ken Thompson
Replied by Ken Thompson on topic Nose bowl cold air hole?
I do not have that small hole in my nose bowl, not a Cabin Fresh Air knob.

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05 Apr 2020 21:20 - 05 Apr 2020 21:21 #2 by Robert Regester
Replied by Robert Regester on topic Nose bowl cold air hole?

Larry Snyder wrote: Doesn’t the shroud around the muffler provide carb heat?

Some people disconnect the cabin heat scat and leave it open, but I think that would reduce cooling air through the cooling fins. Better to block it off, IMHO.


The shroud around the left stack provides cabin heat. The shroud around the muffler provides carb heat. Carb heat inlet from the baffling is near the back so it is already warmed going over the cylinders.
Last edit: 05 Apr 2020 21:21 by Robert Regester.

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23 Feb 2020 12:14 #3 by Larry Snyder
Replied by Larry Snyder on topic Nose bowl cold air hole?
Doesn’t the shroud around the muffler provide carb heat?

Some people disconnect the cabin heat scat and leave it open, but I think that would reduce cooling air through the cooling fins. Better to block it off, IMHO.

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  • Lawson Laslo
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23 Feb 2020 11:13 #4 by Lawson Laslo
Replied by Lawson Laslo on topic Nose bowl cold air hole?
Ok
Ours does not have another flapper and control for cabin air
Would it be ok to just connect the cabin heat tube to the cold air intake?
If I did that would it be ok for the heat shroud around the muffler to be open? ie no tube hooked to it?

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23 Feb 2020 10:07 #5 by Larry Snyder
Replied by Larry Snyder on topic Nose bowl cold air hole?
It’s just for cabin air. Mine has a separate valve and control knob for the vent.

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  • Lawson Laslo
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23 Feb 2020 09:49 #6 by Lawson Laslo
Replied by Lawson Laslo on topic Nose bowl cold air hole?
Oh good!
So could I hook the cabin heat scat tube to that port in summer to get the cabin cooler?
The hole isn’t for oil cooling or anything correct? Just for cabin cooling

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