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August 11th 04, 04:50 AM
A friend of mine is in need of six sparkplug type of CHT probes. He
bought a engine analyzer with bayonette probes, but his GO-300 won't
accept those.
I think that he bought the JPI one, i'm not sure what flavor probes he
needs.
Anybody have any laying around they would like to part with, cheaply?

Thanks

Dave

August 11th 04, 04:53 AM
Please email to
remove nospan_

Thanks
Dave

wrote:

> A friend of mine is in need of six sparkplug type of CHT probes. He
> bought a engine analyzer with bayonette probes, but his GO-300 won't
> accept those.
> I think that he bought the JPI one, i'm not sure what flavor probes he
> needs.
> Anybody have any laying around they would like to part with, cheaply?
>
> Thanks
>
> Dave
>
>

tony roberts
August 11th 04, 06:05 AM
Tell the supplier that you have the wrong ones and would like to
exchange them.
That's what I did with EI - no problem at all.

--

Tony Roberts
PP-ASEL
VFR OTT
Night
Cessna 172H C-GICE




In article <8IgSc.235233$a24.38600@attbi_s03>, wrote:

> A friend of mine is in need of six sparkplug type of CHT probes. He
> bought a engine analyzer with bayonette probes, but his GO-300 won't
> accept those.
> I think that he bought the JPI one, i'm not sure what flavor probes he
> needs.
> Anybody have any laying around they would like to part with, cheaply?
>
> Thanks
>
> Dave
>
>

Maik
August 11th 04, 07:14 AM
if he bought a new jpi he could change them with jpi.
they have a very good service.

maik

wrote:

> A friend of mine is in need of six sparkplug type of CHT probes. He
> bought a engine analyzer with bayonette probes, but his GO-300 won't
> accept those.
> I think that he bought the JPI one, i'm not sure what flavor probes he
> needs.
> Anybody have any laying around they would like to part with, cheaply?
>
> Thanks
>
> Dave
>
>

August 11th 04, 01:39 PM
Also, just FYI... sparkplug CHT probes tend to read up to 75 degrees hotter
than bayonet probes. I know Lycoming specifies their CHTs WRT bayonet so I used to
worry about seeing 425-450. I added a bayonet one and the same cylinder read
350-400
at the same time.
Something to keep in mind.

-Cory


--

************************************************** ***********************
* Cory Papenfuss *
* Electrical Engineering Ph.D. Graduate Student *
* Virginia Polytechnic Institute and State University *
************************************************** ***********************

sidk
August 11th 04, 04:35 PM
Thermocouples common to CHT measurements can be either type J
(Iron,Copper-Nickel) or type K (Nickel-Chrome,Nickel-Aluminim). If
you use the "wrong" type....ie. a type other than that for which the
electronics were designed, the readout will be in error by roughly 30%
(at typical CHTs).

Sid Knox

Velocity N199RS
Starduster N666SK
KR2 N24TC
W7QJQ


wrote in message news:<8IgSc.235233$a24.38600@attbi_s03>...
> A friend of mine is in need of six sparkplug type of CHT probes. He
> bought a engine analyzer with bayonette probes, but his GO-300 won't
> accept those.
> I think that he bought the JPI one, i'm not sure what flavor probes he
> needs.
> Anybody have any laying around they would like to part with, cheaply?
>
> Thanks
>
> Dave

August 11th 04, 06:46 PM
True, but GA CHT probes generally all use the same *type* of thermocouple.
They're just shaped differently for different holes. The EGT uses the other type
since the temps are higher. I don't remember which one is which.

-Cory

In rec.aviation.owning sidk > wrote:
: Thermocouples common to CHT measurements can be either type J
: (Iron,Copper-Nickel) or type K (Nickel-Chrome,Nickel-Aluminim). If
: you use the "wrong" type....ie. a type other than that for which the
: electronics were designed, the readout will be in error by roughly 30%
: (at typical CHTs).

: Sid Knox

: Velocity N199RS
: Starduster N666SK
: KR2 N24TC
: W7QJQ


: wrote in message news:<8IgSc.235233$a24.38600@attbi_s03>...
: > A friend of mine is in need of six sparkplug type of CHT probes. He
: > bought a engine analyzer with bayonette probes, but his GO-300 won't
: > accept those.
: > I think that he bought the JPI one, i'm not sure what flavor probes he
: > needs.
: > Anybody have any laying around they would like to part with, cheaply?
: >
: > Thanks
: >
: > Dave

--

************************************************** ***********************
* Cory Papenfuss *
* Electrical Engineering Ph.D. Graduate Student *
* Virginia Polytechnic Institute and State University *
************************************************** ***********************

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