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  #1  
Unread 04-29-24, 07:20 PM
Alainb Alainb is offline
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Original Gauges... removed or not

Hi all,
I will do an avionic upgrade on my 1977 FTB337G. I decided to install 2 x GI 275 EIS , 2 GI 275, Transponder Garmin 345, GTN 650 an AP Stec 55x and the BOM from Evil aviation.
My questions :
I'd like to keep the old engine gauges and instruments. In order to have redundancy.
Can the Garmin 275 EIS probes also be used for the old original gauges?
Is that a good idea to keep the old gauges ?
Thank you for your valuable advices.
Alain
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  #2  
Unread 04-29-24, 07:27 PM
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Learjetter Learjetter is offline
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Alain,
I removed all the old gauges when I installed 2xGi-275 as EIS 2 years ago. I also installed CiES fuel senders and display fuel quantity on the GI-275.

You need new probes for MP, RPM, oil P, oil T, fuel quantity, fuel flow, fuel pressure. The G3X sensor kit for 6 cyl engine has most of them.

Read all three GI275 installation manuals to get the full scope of the install.


-LJ

Last edited by Learjetter : 04-29-24 at 07:31 PM.
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  #3  
Unread 04-29-24, 07:32 PM
Alainb Alainb is offline
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Hello
Thanks for your answer. Sorry for my ignorance ... but what is the CiES fuel senders and display you installed ... The GI 275 EIS face their own display no ?
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  #4  
Unread 04-29-24, 08:47 PM
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Learjetter Learjetter is offline
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CiES is a company that makes digital fuel level float sensors. I thought since I was putting all new sensors in for the digital gauges I might as well include fuel quantity.

https://ciescorp.net/
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  #5  
Unread 05-01-24, 02:52 AM
wslade2 wslade2 is offline
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You mentioned stec 55x. Is it already in the plane? Or are you doing new installation? If new installation, where are you sourcing it from?
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  #6  
Unread 09-01-24, 11:24 PM
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mdrob1985 mdrob1985 is offline
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Reviving old fuel sender EIS combo question

Learjetter, I am purchasing a 77 P337G that has 2 old EDM 700’s and Shadin digiflo. I want to go with 2 GI 275’s for EIS and new CIES senders to get the most accurate fuel on remaining possible. Since you’ve had that same install for a while now, are you still happy with the performance. Thanks!
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  #7  
Unread 09-02-24, 03:48 AM
Alainb Alainb is offline
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Hello
Thanks for your reply. My installation will be done soon. I will finally have my plane back end of this week ...so I can't tell you but I guess it will be great. I wanted to keep the old gauges but my avionic work shop told me it was too complicated.
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  #8  
Unread 09-02-24, 08:16 AM
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Quote:
Originally Posted by mdrob1985 View Post
Learjetter, I am purchasing a 77 P337G that has 2 old EDM 700’s and Shadin digiflo. I want to go with 2 GI 275’s for EIS and new CIES senders to get the most accurate fuel on remaining possible. Since you’ve had that same install for a while now, are you still happy with the performance. Thanks!
Yes. The GI-275 EIS with CiES senders is a very nice bit of kit.
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  #9  
Unread 09-02-24, 11:17 AM
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mdrob1985 mdrob1985 is offline
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Thank you! Now I just need to determine how to place them in the panel so they are center facing the left seat. I'm going to move an Aspen pro to the right seat as the backup and locate it where the current RPM/MP gauges are setting. I'd love to just remove all the old gauges to reduce the bird's nest of old wires and cut weight, but I have heard they might somehow be connected to the AP system, so fearful of doing that for now.
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  #10  
Unread 09-02-24, 01:24 PM
Alainb Alainb is offline
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Hello
I send you a pic of my "almost finish panel.
I add a STEC 55 x auto pilot but I have some issue to find a BELCRANCK PN 1462000-2
Regards
Alain
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  #11  
Unread 09-04-24, 08:27 AM
TomeHill79 TomeHill79 is offline
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Quote:
Originally Posted by Alainb View Post
Hello
I send you a pic of my "almost finish panel.
I add a STEC 55 x auto pilot but I have some issue to find a BELCRANCK PN 1462000-2
Regards
Alain

This is what you need:
Its the RH bellcrank for your Autopilot servo. This has a bracket included.

https://www.ebay.com/itm/13515031935...mis&media=COPY
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