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                           Europa-List Digest Archive
                                      ---
                     Total Messages Posted Mon 10/25/21: 2
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Today's Message Index:
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     1. 01:55 AM - Re: Rotax Cooling Air Baffle  (GTH)
     2. 11:22 AM - Re: Re: Rotax Cooling Air Baffle  (D McFadyean)
 
 
 
________________________________  Message 1  _____________________________________


Time: 01:55:56 AM PST US
Subject: Re: Europa-List: Rotax Cooling Air Baffle
From: GTH <gilles.thesee@free.fr>

Le 24/10/2021  19:04, rparigoris a crit:
>
> Hi Group Has anyone flying with Rotax Cooling Air Baffle modified the internal
flow to give cylinders #3 and #4 a little more flow compared to the front two
cylinders? How about with a 914 even giving #3 a little more flow compared to
#4? This coming week going to test mine with a leaf blower. Thx. Ron
>
>

Hello Ron and all,

We installed the Rotax air baffle on our 914 and made some measurements 
at the time.

Here are some considerations :

With adequate sealing around the baffle and some pressure recovery 
(expanding inlet), all 4 cylinders get enough cooling air.

Only the #1 gets some extra blast from the "bizarre" Rotax inlet.

Due to liquid cooling, the cylinder heads are good "temperature sources" 
and the cylinder temps never exceeded 100/120 C.

FWIW,

-- 
Best regards
Gilles
http://contrails.free.fr
http://lapierre.skunkworks.free.fr

________________________________  Message 2  _____________________________________


Time: 11:22:42 AM PST US
From: D McFadyean <ami-mcfadyean@talktalk.net>
Subject: Re: Europa-List: Re: Rotax Cooling Air Baffle


https://www.rotax-owner.com/pdf/IM_912_Series_Ed3_R0.pdf
Page 132 et seq.

Duncan Mcf.
> On 24 October 2021 at 20:27 rparigoris <rparigor@hotmail.com> wrote:
> 
> 
> 
> Hi Duncan Thank you for reply. Do you by chance have any pics or documentation
of under baffles? What Rotax document speaks of using a cylinder thermocouple
for monitoring cylinder wall temp? Thx. Ron P.
> 
> 
> 
> 
> Read this topic online here:
> 
> http://forums.matronics.com/viewtopic.php?p=503612#503612
> 
> 
> 
> 
> 
> 
> 
> 
>


 

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