John.
I tried to use the specified distance. It seems simple enough until you
start to measure on the curve. Do I measure the ID of the tube bend or the
OD of the tube bend? I chose to drill the hole so the tip of the probe came
out 70mm down the center line of the bend from the exhaust flange.
I also use CHT probes, located at the Rotax recommended place. Even though
that isn't a true CHT, because the probe is in a water jacket. Some combo
of water temp and CHT I guess. But that is what they use for the max CHT
measurement location. I also installed a water temp probe located in the
water line as it leaves the top of the cylinders, the hottest point.
Mark S.
701/912ULS
----- Original Message -----
From: "jf3sb" <jf3sb@yahoo.com>
To: <zenith701801-list@matronics.com>
Sent: Sunday, March 07, 2010 6:18 AM
Subject: Re: EGT probe locations for 912S with Zenith
exhaust?
>
> Sounds like you've got a good working installation that the rest of us
> strap-hangers can copy, Mark. Did you mount the probes at the Rotax's
> specified distance (even if on a curved part of the header), or move them
> downstream to a straight spot?
>
> Thanks...
>
> John
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=289488#289488
>
>
>
