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ScottA

Joined: 05 Jan 2006
Posts: 100
Location: Park City, UT

Posted: Mon Jun 19, 2006 7:46 pm Post subject: CHT

I have CHT on #3, 6, and 9.  #3 runs 20 to 25 C hotter than the other two.

Baffling is sealed up pretty good all around.  It would seem 3 and 9 would

be similar as far as air flow.  This is a Murphy Moose with the main outlet

on the bottom and two smaller air outlets on the side cheeks.



 



For starters what is the best way to test the CHT probe and make sure it is

not off?



 



Thanks,



Scott

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Claytonfly(at)comcast.net
Guest

Posted: Mon Jun 19, 2006 8:09 pm Post subject: CHT

Scott



I would start by changing one of the probes on the #6 or #9 cylinders with

the one that is indicating hotter.

This should tell you if the probe is bad.



John

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n395v

Joined: 10 Jan 2006
Posts: 450

Posted: Tue Jun 20, 2006 3:48 am Post subject: Re: CHT

Set up a pot of boiling water on a hot plate within reach of th probe and drop the probe in. It should read close to 212F or 100C.



If it is close in this ramge it is probably ok.



Alternatively you can get cooking oil up over 300 deg F if you have a good thermometetr to measure it.

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_________________
Milt

dsavarese(at)elmore.rr.co
Guest

Posted: Tue Jun 20, 2006 4:02 am Post subject: CHT

You can also use a laser temperature sensor and read the CHT's on each 

cylinder with the probes exactly at the same point where the probes are 

installed on each cylinder.

Dennis



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ScottA

Joined: 05 Jan 2006
Posts: 100
Location: Park City, UT

Posted: Tue Jun 20, 2006 8:24 pm Post subject: CHT

Thanks for all the ideas.



Scott

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