I suppose you could weld in egt threated weld-o-lets for the probes and install the probes only when tuning the engine and perhaps at annual time to check the mixture distribution and injector differential wear. You can have them plugged with a same size plug as the probe threads the rest of the time. Probably the best solution. Then just use the one TOT after the turbine for egt monitoring.....and overtemp monitoring of the turbine.
Marc
>
> From: Bulent Aliev <atlasyts@bellsouth.net>
> Date: 2005/01/10 Mon PM 11:49:14 GMT
> To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
> Subject: [FlyRotary] Re: turbo EGT probes
>
> I'm not worried about that Marc. I would like to be able to tune each rotor
> so they match. I think this is more important?
> Buly
>
> On 1/10/05 9:35 AM, "cardmarc@charter.net" <cardmarc@charter.net> wrote:
>
> > Only problem is that if a tip piece of the probe breaks off, it will go thru
> > the turbine and make a mess. Just a thought. Many people only put one probe
> > after the turbine because of this possibility. I do not have any firsthand
> > experience with this happening but have heard of it.
> > Marc W
> >>
> >> From: Bulent Aliev <atlasyts@bellsouth.net>
> >> Date: 2005/01/10 Mon AM 01:51:58 GMT
> >> To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
> >> Subject: [FlyRotary] EGT probes
> >>
> >> Hi Guys,
> >> I removed my turbo manifold today for ceramic coating, so I want to install
> >> two EGT probes, one for each rotor. I want to drill and tap into the cast
> >> iron manifold about 1" away from the exhaust ports. My questions are:
> >> 1. Any draw backs?
> >> 2. Recommendations for probes that will stand up to the heat in this
> >> location and will work with the EM2.
> >>
> >> My engine starts instantly every time. At the beginning I kept the mixture
> >> knob to the center position. Any movement to the left and the engine would
> >> stumble. Now I'm noticing the knob is fully to the left and it is rich. Not
> >> too rich but more than before? I guess it is time to get into the
> >> programming stuff?
> >> I'm drawing big crowds at the airport with this engine. Today I had to put a
> >> yellow rope on the hangar doors so I can work. Handed chairs to the old
> >> timers, the youngins had standing room only :)
> >>
> >> Buly
> >>
> >
>
>
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>