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oil temp sender

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zipper

Joined: 17 Jul 2013
Posts: 14

Posted: Sat Oct 04, 2014 11:53 am Post subject: oil temp sender

I am sorry, this has been covered before, but I have oil temp indication problems. My 3300 indicates on a Dynon D-180, normal readings until the engine gets warmed up well, usually 10 minutes into a flight. Then I get instantaneous changes from the 180 range up to around 250F, for various random times; several a minute maybe. This is obviously inaccurate and false. After landing, taxiing in things settle down and believable readings reappear. Wiring has been checked thoroughly and the connector to the sender has been cleaned and safety wired so it doesn't vibrate.

My next thing to do is attack the sender. Is there a way to prove its reliability, or should I just pull it and replace. Which leads me to question two, what is the preferred or best option to acquire. I see the Jabiru sender is in their book as VDO 320 028. Should I stick with that or is there another, better choice? There is only one wire going to my present sender, and I am in USA.

thanksâ€¦George AndrÃ©, Arion Lightning, Jab 3300 S/N 987.

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AirEupora

Joined: 01 Nov 2009
Posts: 186
Location: Dixon, CA

Posted: Sun Oct 05, 2014 7:38 am Post subject: Re: oil temp sender

I have read that others have had a problem with their sender.  You can get a replacement at an auto store.  It a quick change out.  A number of builders have mounted the sender on the firewall.  This seems to help as the engine vibrations cause the sender to fail.



Rick Stockton

N120EJ

Europa XS, Jabiru 3300L

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matronics(at)rtist.nl
Guest

Posted: Sun Oct 05, 2014 8:48 am Post subject: oil temp sender

Rick,



That is valid for the oil pressure sender, not for the oil temperature 

sender.



Rob



On 10/5/2014 5:38 PM, AirEupora wrote:

 	  Quote: 	
		   



 I have read that others have had a problem with their sender.  You can get a replacement at an auto store.  It a quick change out.  A number of builders have mounted the sender on the firewall.  This seems to help as the engine vibrations cause the sender to fail.



 Rick Stockton

 N120EJ

 Europa XS, Jabiru 3300L





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=431533#431533

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BARRY CHECK 6

Joined: 15 Mar 2011
Posts: 738

Posted: Tue Oct 07, 2014 12:50 pm Post subject: oil temp sender

Glan:

Start by checking the probe.  

1 - Remove it from the engine .

2 - Get a portable heat source - Hot Plate or Camp Stove

3 - Get a CONTROL unit...  Some means of reading a separate temperature that you KNOW is accurate.  Lab thermometer or similar.

4 - Get a OLD pot or can that can be heated - Get some OLD OIL.

Oil works best.  It holds temps better than water and can be heated well into the 300 F range without boiling.

5 - Set up the equipment and test - COMPARE away.  

6 - Submerge the probes but keep them off the bottom and sides of the pot/can.

7 - Both probes - Thermometers should read the SAME.

If not then which one reads HIGH?

Barry





 

[quote]I am sorry, this has been covered before, but I have oil temp indication problems. My 3300 indicates on a Dynon D-180, normal readings until the engine gets warmed up well, usually 10 minutes into a flight. Then I get instantaneous changes from the 180 range up to around 250F, for various random times; several a minute maybe. This is obviously inaccurate and false. After landing, taxiing in things settle down and believable readings reappear. Wiring has been checked thoroughly and the connector to the sender has been cleaned and safety wired so it doesn't vibrate.

 My next thing to do is attack the sender. Is there a way to prove its reliability, or should I just pull it and replace. Which leads me to question two, what is the preferred or best option to acquire. I see the Jabiru sender is in their book as VDO 320 028. Should I stick with that or is there another, better choice? There is only one wire going to my present sender, and I am in USA.

 thanks&hellip;George André, Arion Lightning, Jab 3300 S/N 987.

 

 [b]

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UK Clive

Joined: 17 May 2013
Posts: 27

Posted: Tue Oct 07, 2014 1:23 pm Post subject: oil temp sender

Or drop it in a kettle and boil it up for a spot check at 212/100.

On 7 Oct 2014, at 21:49, FLYaDIVE <flyadive(at)gmail.com (flyadive(at)gmail.com)> wrote:

[quote]Glan:

Start by checking the probe.  

1 - Remove it from the engine .

2 - Get a portable heat source - Hot Plate or Camp Stove

3 - Get a CONTROL unit...  Some means of reading a separate temperature that you KNOW is accurate.  Lab thermometer or similar.

4 - Get a OLD pot or can that can be heated - Get some OLD OIL.

Oil works best.  It holds temps better than water and can be heated well into the 300 F range without boiling.

5 - Set up the equipment and test - COMPARE away.  

6 - Submerge the probes but keep them off the bottom and sides of the pot/can.

7 - Both probes - Thermometers should read the SAME.

If not then which one reads HIGH?

Barry





 

 	  Quote: 	
		  I am sorry, this has been covered before, but I have oil temp indication problems. My 3300 indicates on a Dynon D-180, normal readings until the engine gets warmed up well, usually 10 minutes into a flight. Then I get instantaneous changes from the 180 range up to around 250F, for various random times; several a minute maybe. This is obviously inaccurate and false. After landing, taxiing in things settle down and believable readings reappear. Wiring has been checked thoroughly and the connector to the sender has been cleaned and safety wired so it doesn't vibrate.

 My next thing to do is attack the sender. Is there a way to prove its reliability, or should I just pull it and replace. Which leads me to question two, what is the preferred or best option to acquire. I see the Jabiru sender is in their book as VDO 320 028. Should I stick with that or is there another, better choice? There is only one wire going to my present sender, and I am in USA.

 thanks…George André, Arion Lightning, Jab 3300 S/N 987.

 

 



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