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GRT probes

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dlm46007(at)cox.net
Guest

Posted: Mon May 17, 2010 11:12 am Post subject: GRT probes

Changed the EGT  probe on #2 today. This is the second time to replace #2 EGT probe. Note  the black shrink wrap near the connectors. These are the cheaper probes from  GRT. Note that I did not say inexpensive.; the price from GRT is about $10 less  than their "higher quality" probe. I did not know this when I received  and  installed my EIS 6000. They are not inexpensive because in 278 hours I have had  four failures using these probes. Each time a failure occurs, the  aircraft must be uncowled and a part obtained from GRT. Each failure cost about  2 hours of my labor and acquisition and AOG freight charges to remedy. If you  use GRT probes at least insist on the EGT probes with the white shrink wrap near  the connectors; they are the "higher quality"   probes.

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scottmschmidt(at)yahoo.co
Guest

Posted: Mon May 17, 2010 12:37 pm Post subject: GRT probes

I have now replaced all six probes after 650 hours of flying. 

If you have not flown I would return everyone of them and get the higher quality probe that GRT offers. So far, no problems with them. 

-Scott Schmidt



Sent from my iPhone



On May 17, 2010, at 1:09 PM, "DLM" <dlm46007(at)cox.net (dlm46007(at)cox.net)> wrote:



[quote]  Changed the EGT  probe on #2 today. This is the second time to replace #2 EGT probe. Note  the black shrink wrap near the connectors. These are the cheaper probes from  GRT. Note that I did not say inexpensive.; the price from GRT is about $10 less  than their "higher quality" probe. I did not know this when I received  and  installed my EIS 6000. They are not inexpensive because in 278 hours I have had  four failures using these probes. Each time a failure occurs, the  aircraft must be uncowled and a part obtained from GRT. Each failure cost about  2 hours of my labor and acquisition and AOG freight charges to remedy. If you  use GRT probes at least insist on the EGT probes with the white shrink wrap near  the connectors; they are the "higher quality"   probes.  

 

<IMG_0732.JPG>

[b]

Tim Olson

Joined: 25 Jan 2007
Posts: 2879

Posted: Mon May 17, 2010 1:03 pm Post subject: GRT probes

I've been following this with interest because I've been

flying 625 hours now with only one probe failure on

the same probes, in fact the black labeled ones. In

fact, the failure I had was due to the crimped end.

I've removed them twice or so, when I removed the exhaust,

and reinstalled.  I'm not sure why mine have been

reliable, but they have been.

Tim Olson - RV-10 N104CD

do not archive

Scott Schmidt wrote:

 	  Quote: 	
		   I have now replaced all six probes after 650 hours of flying. 

 If you have not flown I would return everyone of them and get the higher 

 quality probe that GRT offers. So far, no problems with them. 

 

 -Scott Schmidt

 

 Sent from my iPhone

 

 On May 17, 2010, at 1:09 PM, "DLM" <dlm46007(at)cox.net 

 <mailto:dlm46007(at)cox.net>> wrote:

 

> Changed the EGT probe on #2 today. This is the second time to replace 

> #2 EGT probe. Note the black shrink wrap near the connectors. These 

> are the cheaper probes from GRT. Note that I did not say inexpensive.; 

> the price from GRT is about $10 less than their "higher quality" 

> probe. I did not know this when I received  and installed my EIS 6000. 

> They are not inexpensive because in 278 hours I have had four failures 

> using these probes. Each time a failure occurs, the aircraft must be 

> uncowled and a part obtained from GRT. Each failure cost about 2 hours 

> of my labor and acquisition and AOG freight charges to remedy. If you 

> use GRT probes at least insist on the EGT probes with the white shrink 

> wrap near the connectors; they are the "higher quality"  probes.  

> <IMG_0732.JPG>

 *

jdriggs49(at)msn.com
Guest

Posted: Mon May 17, 2010 1:08 pm Post subject: GRT probes

Just how expensive are the better ones?



Date: Mon, 17 May 2010 13:35:28 -0700

From: scottmschmidt(at)yahoo.com

Subject: Re: GRT probes

To: rv10-list(at)matronics.com



I have now replaced all six probes after 650 hours of flying. 

If you have not flown I would return everyone of them and get the higher quality probe that GRT offers. So far, no problems with them. 

-Scott Schmidt



Sent from my iPhone



On May 17, 2010, at 1:09 PM, "DLM" <dlm46007(at)cox.net (dlm46007(at)cox.net)> wrote:



 	  Quote: 	
		    Changed the EGT  probe on #2 today. This is the second time to replace #2 EGT probe. Note  the black shrink wrap near the connectors. These are the cheaper probes from  GRT. Note that I did not say inexpensive.; the price from GRT is about $10 less  than their "higher quality" probe. I did not know this when I received  and  installed my EIS 6000. They are not inexpensive because in 278 hours I have had  four failures using these probes. Each time a failure occurs, the  aircraft must be uncowled and a part obtained from GRT. Each failure cost about  2 hours of my labor and acquisition and AOG freight charges to remedy. If you  use GRT probes at least insist on the EGT probes with the white shrink wrap near  the connectors; they are the "higher quality"   probes.  

 

<IMG_0732.JPG>

http://www.matronics.com/Navigatwww.matronics.com/contribution">http://www.matronics.com/contribution 	
 		 	   		  Hotmail has tools for the New Busy. Search, chat and e-mail from your inbox. Learn more.  [quote][b]

rleffler

Joined: 05 Nov 2006
Posts: 680

Posted: Mon May 17, 2010 2:43 pm Post subject: GRT probes

Scott,

 

How do you determine which ones are the higher quality?

 

I only see reference to a standard set of probes on their site.

 

Thanks,

 

Bob

 

 

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Scott Schmidt

Sent: Monday, May 17, 2010 4:35 PM

To: rv10-list(at)matronics.com

Subject: Re: GRT probes

 

I have now replaced all six probes after 650 hours of flying. 



If you have not flown I would return everyone of them and get the higher quality probe that GRT offers. So far, no problems with them. 



 



-Scott Schmidt



 	  Quote: 	
		   	


  [quote][b]

_________________
Bob Leffler
N410BL - Phase I
http://mykitlog.com/rleffler

Ron.McGann(at)ausawd.com
Guest

Posted: Mon May 17, 2010 2:52 pm Post subject: GRT probes

I have not checked the archives over at VAF on this topic, but it might be worthwhile starting a thread over there.  There are a bucket load of RVs using the GRT system and their probes.  I have found GRT great to deal with, and I’m sure they will take appropriate action if there is any hint of negative press.  

   

Cheers  

Ron  

VH-XRM, flying in Oz  

   

Do not archive  

   

         

  

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of DLM

 Sent: Tuesday, 18 May 2010 5:10 AM

 To: rv10-list(at)matronics.com

 Subject: GRT probes  

  

     

Changed the EGT probe on #2 today. This is the second time to replace #2 EGT probe. Note the black shrink wrap near the connectors. These are the cheaper probes from GRT. Note that I did not say inexpensive.; the price from GRT is about $10 less than their "higher quality" probe. I did not know this when I received  and installed my EIS 6000. They are not inexpensive because in 278 hours I have had four failures using these probes. Each time a failure occurs, the aircraft must be uncowled and a part obtained from GRT. Each failure cost about 2 hours of my labor and acquisition and AOG freight charges to remedy. If you use GRT probes at least insist on the EGT probes with the white shrink wrap near the connectors; they are the "higher quality"  probes.    

  

       [quote][b]

dlm46007(at)cox.net
Guest

Posted: Mon May 17, 2010 3:22 pm Post subject: GRT probes

$10 more per probe



   From: owner-rv10-list-server(at)matronics.com  [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Danny  Riggs

Sent: Monday, May 17, 2010 2:08 PM

To:  rv10-list(at)matronics.com

Subject: RE: GRT  probes

 

Just how expensive are the better ones?



  Date: Mon, 17 May 2010 13:35:28 -0700

From:  scottmschmidt(at)yahoo.com

Subject: Re: GRT probes

To:  rv10-list(at)matronics.com



 I have now replaced all six probes after 650 hours of flying. 

 If you have not flown I would return everyone of them and get the higher  quality probe that GRT offers. So far, no problems with them. 

 



 -Scott Schmidt



Sent from my iPhone

 

On May 17, 2010, at 1:09 PM, "DLM" <dlm46007(at)cox.net (dlm46007(at)cox.net)> wrote:

 

  	  Quote: 	
		        Changed the EGT probe    on #2 today. This is the second time to replace #2 EGT probe. Note the    black shrink wrap near the connectors. These are the cheaper probes from GRT.    Note that I did not say inexpensive.; the price from GRT is about $10 less    than their "higher quality" probe. I did not know this when I received     and installed my EIS 6000. They are not inexpensive because in 278 hours I    have had four failures using these probes. Each time a failure    occurs, the aircraft must be uncowled and a part obtained from GRT. Each    failure cost about 2 hours of my labor and acquisition and AOG freight charges    to remedy. If you use GRT probes at least insist on the EGT probes with the    white shrink wrap near the connectors; they are the "higher quality"     probes.  



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http://www.matronics.com/Navigatwww.matronics.com/contribution">http://www.matronics.com/contribution 	


  Hotmail has tools for the New Busy. Search, chat and e-mail from your inbox. Learn more. [quote]



href="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.com/Navigator?RV10-List

href="http://forums.matronics.com">http://forums.matronics.com

href="http://www.matronics.com/contribution">http://www.matronics.com/c

[b]

dlm46007(at)cox.net
Guest

Posted: Mon May 17, 2010 3:22 pm Post subject: GRT probes

Sandy indicated that there were two different quality probes;  she indicated that the standard (black wrap) probes work for most. Perhaps they  got a bad batch. She said that the white wrap are available for about $10 more  per probe. I have also researched GEM, Alcor and EI and may buy a replacement  set from EI. My Glastar had all EI engine instruments and in 530 hours I never  had a EGT or any of their probes fail. On my C177RG I had a GEM603 and had  one or maybe two EGT probe failures over at least 15 years and 2000+  hours.

   From: owner-rv10-list-server(at)matronics.com  [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Bob  Leffler

Sent: Monday, May 17, 2010 3:44 PM

To:  rv10-list(at)matronics.com

Subject: RE: GRT  probes

Scott, 

How  do you determine which ones are the higher quality? 

I  only see reference to a standard set of probes on their  site. 

Thanks, 

Bob 

From:  owner-rv10-list-server(at)matronics.com  [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Scott  Schmidt

Sent: Monday, May 17, 2010 4:35 PM

To:  rv10-list(at)matronics.com

Subject: Re: GRT  probes

I have now replaced all six probes after 650 hours of  flying. 

If you have not flown I would return everyone of them and get  the higher quality probe that GRT offers. So far, no problems with  them. 

-Scott Schmidt

[quote] 

href="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.com/Navigator?RV10-List

href="http://forums.matronics.com">http://forums.matronics.com

href="http://www.matronics.com/contribution">http://www.matronics.com/c

[b]

scottmschmidt(at)yahoo.co
Guest

Posted: Mon May 17, 2010 5:02 pm Post subject: GRT probes

Bob, Sandy just mentioned that they offered a higher temp option when I called the first time. And $10



I am not sure why I have had probe problems Tim and you have not.  I do have ceramic coated exhaust that may store more heat inside the system.  I also located my probes as close as the plans discussed to the cylinders (I think that was 2.5"). 

If I did it again I would probably locate them further down the exhaust, maybe that would make the difference.  The new probes appear to fix the problem as I have not had one issue with them.  



I also have some skin friction heat caused by the speed of my plane that increases the heat of the exhaust.  That is most likely the problem 

 

Scott Schmidtscottmschmidt(at)yahoo.com



From: Bob Leffler <rv(at)thelefflers.com>

To: rv10-list(at)matronics.com

Sent: Mon, May 17, 2010 4:43:50 PM

Subject: RE: GRT probes



 

 

Scott,

  

How do you determine which ones are the higher quality?

  

I only see reference to a standard set of probes on their site.

  

Thanks,

  

Bob

  

  

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Scott Schmidt

Sent: Monday, May 17, 2010 4:35 PM

To: rv10-list(at)matronics.com

Subject: Re: GRT probes

  

I have now replaced all six probes after 650 hours of flying. 



If you have not flown I would return everyone of them and get the higher quality probe that GRT offers. So far, no problems with them. 



  



-Scott Schmidt



[quote]

  

[b]

Tim Olson

Joined: 25 Jan 2007
Posts: 2879

Posted: Mon May 17, 2010 5:13 pm Post subject: GRT probes

I think mine are 2" or so.  When mine do go bad I'll just get 6 new ones and the good ones then.  But for now I'm a happy camper.

I think you're right about the skin friction heat....that's the hot tunnel reason too.  Have you noticed your wing leading edges glow slightly orange at night too?

Tim 





On May 17, 2010, at 8:00 PM, Scott Schmidt <scottmschmidt(at)yahoo.com (scottmschmidt(at)yahoo.com)> wrote:



[quote]Bob, Sandy just mentioned that they offered a higher temp option when I called the first time. And $10



I am not sure why I have had probe problems Tim and you have not.  I do have ceramic coated exhaust that may store more heat inside the system.  I also located my probes as close as the plans discussed to the cylinders (I think that was 2.5"). 

If I did it again I would probably locate them further down the exhaust, maybe that would make the difference.  The new probes appear to fix the problem as I have not had one issue with them.  



I also have some skin friction heat caused by the speed of my plane that increases the heat of the exhaust.  That is most likely the problem 

 

Scott Schmidtscottmschmidt(at)yahoo.com (scottmschmidt(at)yahoo.com)



From: Bob Leffler <rv(at)thelefflers.com (rv(at)thelefflers.com)>

To: [url=mailto:rv10-list(at)matronics.com]rv10-list(at)matronics.com (rv10-list(at)matronics.com)[/url]

Sent: Mon, May 17, 2010 4:43:50 PM

Subject: RE: GRT probes



 

 

Scott,

  

How do you determine which ones are the higher quality?

  

I only see reference to a standard set of probes on their site.

  

Thanks,

  

Bob

  

  

From: owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com) [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Scott Schmidt

Sent: Monday, May 17, 2010 4:35 PM

To: [url=mailto:rv10-list(at)matronics.com]rv10-list(at)matronics.com (rv10-list(at)matronics.com)[/url]

Subject: Re: GRT probes

  

I have now replaced all six probes after 650 hours of flying. 



If you have not flown I would return everyone of them and get the higher quality probe that GRT offers. So far, no problems with them. 



  



-Scott Schmidt



 	  Quote: 	
		  

  





 href="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.com/Navigator?RV10-List

href="http://forums.matronics.com">http://forums.matronics.com

href="http://www.matronics.com/contribution">http://www.matronics.com/contribution



	


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