Re: Your Opinion

Bill Allen

Bad Carb heat again; 


On Mon, 4 Jan 2021 at 19:32, Bill Allen via <> wrote:
Uh-oh! If it’s a Certified engine in a certified airframe, it should be able to idle with carb heat without stopping. That’s just bad maintenance. 
A Lycoming with the Marvel Schebler carb is straightforward to set up - 1930’s tech. :^)


On Mon, 4 Jan 2021 at 17:06, Richard Thomson <richard@...> wrote:

It wasn't on my 0200, it was a club Cherokee with a Lycoming, but it taught me a lesson that sticks in the mind for the future reference. :-Br



On 04/01/2021 10:47, Bill Allen wrote:
Hi Rich - what engine do you have?  If it rich-cuts at idle, it should be possible to alter the setup so that it doesn’t....


On Mon, 4 Jan 2021 at 11:35, Richard Thomson <richard@...> wrote:

 Thanks Bill, that is some interesting information to consider.

    The reason I select carb heat cold on late final is not damage to the engine but Rich Cut, and even then that is not a problem if you are landing, but on T&G's and on short fields can be a decider if you end up in the hedge ( or at Henstridge in the fence or girders), so I my norm is Carb Heat Cold on late final and a gentle cycle of the throttle to check its still there.



On 04/01/2021 08:13, Bill Allen wrote:

Hi Kieth,

You wrote: <<  I was hoping for some info regarding the use of Prist. >>r

Joel Ventura did quite a detailed article on Prist etc here: 


Note: Prist wont stop carb ice, which comes out of the atmosphere. Prist deals with water already in suspension within the fuel. 

On Mon, 4 Jan 2021 at 03:58, Keith Welsh <klw544@...> wrote:
Hi again,
All your comments, experiences and knowledge no doubt turned out to be a real education.  I don’t know about y’all but icing is normally not a discussion item.  I’m glad I took the chance to post the article.  Learned more than I thought I would.  And thank you all for “Your Opinions”
I must admit I was hoping for some info regarding the use of Prist.  I did actually use it in the Quickie for a time.  Reckon it did ok..that was several years ago.  My Q does not have carb heat nor does the carb have access to outside air, only hot air off the engine and is why the interest in the Teflon coating.  The carb on the newer Onan sets higher so to accommodate a new heat box I would need to make a new cowl that was gonna happen!  Not surprised no one had much to say about it.  
Like Jay I’m sure ice will form Teflon or not but I’ve never used a Teflon coated anything that anything would stick to it.  I once froze water in both a steel pan and a Teflon one.  Guess which one the ice slid out of.  The steel pan had ice remnants sticking to it after most was chipped out.  Yeah, pretty unscientific but....  Think about your plastic ice server bucket when guest come over, the ice sticks to everything even fingers.  At least modern technology has provided us with some options.

Thanks again,

Please note: message attached

From: "Mike Dwyer " <q200pilot@...>
Subject: Re: [Q-List] Your Opinion
Date: Sun, 3 Jan 2021 17:00:40 -0500




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