If you had a choice of only one EGT sensor on four-cylinder Lycoming, which cylinder would you choose to install it on?
Typically #3 runs hottest on most RVs.
what if we assume that #3 already has CHT probe?
what if we assume that #3 already has CHT probe?
And I only have the one CHT & EGT. Both on #3
L.Adamson --- RV6A
If I had only one, I'd put it into my 4 into 1 collector...
If I had only one, I'd put it into my 4 into 1 collector...
I think the issue is that if you are running a single probe egt, you want to get it on the leanest cylinder. That may vary from installation to installation. You will not know if you got it on the leanest cylinder until you can fly the aircraft and lean the engine. A lot of times the leanest cylinder is number three so that might be a good place to start. If that decision turns out wrong you need to move the probe to another cylinder until you find the leanest cylinder. When you lean to the leanest cylinder, you will not get different leaning characteristics then if you were using a multi probe setup.... only more information. So, your fuel burn should be the same, leaned to the leanest cylinder and only sensing that cylinder or leaning to the leanest cylinder and being able to see what the others are doing.
Good Luck,
Mahlon
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Thank you Sir,
The leanest one it will be.
If you had a choice of only one EGT sensor on four-cylinder Lycoming, which cylinder would you choose to install it on?
A boat, or something else less sensitive to causing death if it fails. Then I'd buy and install a real 4-sensor package on my airplane.
There are a whole lot of certified planes out there with just one cht and egt, if even that. They don't all seem to be falling out of the sky...
L.Adamson
And those manufacturers likely conducted flight testing with four EGTs and four CHTs, so they could see which cylinder was critical. Then, on production aircraft, they only installed EGT and CHT on the critical cylinder.There are a whole lot of certified planes out there with just one cht and egt, if even that. They don't all seem to be falling out of the sky...
And those manufacturers likely conducted flight testing with four EGTs and four CHTs, so they could see which cylinder was critical. Then, on production aircraft, they only installed EGT and CHT on the critical cylinder.
There are a whole lot of certified planes out there with just one cht and egt, if even that. They don't all seem to be falling out of the sky...
L.Adamson