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External Tanks - how to wire them

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Yakjumper

Joined: 28 Nov 2016
Posts: 21
Location: Germany

Posted: Fri Jul 06, 2018 12:04 am Post subject: External Tanks - how to wire them

Hi,



got a Yak 52 which has external tanks, but they were not used by the previous owner. Pumps and cables were removed and not installed again after the plane was shipped in a container.



So I got a new cable set and switch box from the avionics shop, pumps and parts.



But there is no fuel level sensor/switch in the external tanks. My other 52 has a fuel level sensor and the light shows red/green. So I know when the tank is empty.



Is there a way to use a fuel pressure switch (6psi), or a fuel flow sensor in line instead ? Or must it be a level switch/float in the tank ? That would not be that easy to install. 

thx

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dsavarese0812(at)bellsout
Guest

Posted: Fri Jul 06, 2018 5:24 am Post subject: External Tanks - how to wire them

You can install one of these off of a T fitting on the output of the pump.  Wire it so it shuts the pump off when fuel pressure is lost.

https://www.jegs.com/i/JEGS/555/11206/10002/-1?CAWELAID=1710870554&CAGPSPN=pla&CAAGID=39714413703&CATCI=pla-457013475083&CATARGETID=230006180040357466&cadevice=c&jegspromo=nonbrand&gclid=EAIaIQobChMIt9C3o8aK3AIVUSWBCh3xWwaXEAQYAiABEgK0KfD_BwE



Dennis



       From: Yakjumper <tobias(at)macnews.de>

 To: yak-list(at)matronics.com 

 Sent: Friday, July 6, 2018 4:07 AM

 Subject: External Tanks - how to wire them

  

 

--> Yak-List message posted by: "Yakjumper" <tobias(at)macnews.de (tobias(at)macnews.de)>



Hi,



got a Yak 52 which has external tanks, but they were not used by the previous owner. Pumps and cables were removed and not installed again after the plane was shipped in a container.



So I got a new cable set and switch box from the avionics shop, pumps and parts.



But there is no fuel level sensor/switch in the external tanks. My other 52 has a fuel level sensor and the light shows red/green. So I know when the tank is empty.



Is there a way to use a fuel pressure switch (6psi), or a fuel flow sensor in line instead ? Or must it be a level switch/float in the tank ? That would not be that easy to install. 



thx



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