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  #1  
Old 10-24-2016, 10:27 AM
russe russe is offline
 
Join Date: Mar 2016
Location: Clarendon Hills, IL
Posts: 19
Default Replacing EGT probes

I've got two EGT probes that are acting up on my -10.

I'm going to buy replacements and hopefully tackle the job of swapping out the flaky ones myself. I'm not the original builder, so was looking to tap the accumulated wisdom of the Vans air force about anything special to keep in mind during the job.

Thanks in advance for ideas,
Russ
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  #2  
Old 10-24-2016, 11:39 AM
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bruceh bruceh is online now
 
Join Date: Mar 2008
Location: Ramona, CA
Posts: 2,370
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Assuming there are spade connectors somewhere between the probe and the EMS box, it should be an easy job. Just loosen the worm clamp that hold the probe around the exhaust pipe. Pull the probe out, disconnect the connector and replace. Don't over tighten the hose clamp, or it may crack.



My first set of Dynon EGT probes had a few flakey ones that started going in and out with the temp readings. The newer ones have been solid over the last year.
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  #3  
Old 10-24-2016, 12:04 PM
Ralph Inkster Ralph Inkster is offline
 
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Location: Calgary, Alberta
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More than a few EGT issues I ran into were caused by poor connections on the EGT leads. I'd try cleaning & tightening them before buying replacements.
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  #4  
Old 10-24-2016, 01:01 PM
russe russe is offline
 
Join Date: Mar 2016
Location: Clarendon Hills, IL
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Thanks for the tip to clean and check the connectors.
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  #5  
Old 10-24-2016, 01:47 PM
larosta larosta is offline
 
Join Date: Dec 2010
Location: Redlands, CA
Posts: 176
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Small probability. We have encountered lead or other conductive material deposits between the thermocouple bead and the sheath. Use an ohm meter to check for electrical isolation between the thermcouple and the air frame. If you find conductive material on across the insulation between the TC ans sheath try scraping it off, this usually works.
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