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Fuel Sender Wire Length

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Paul Valovich

Joined: 11 Jan 2006
Posts: 75

Posted: Sun Sep 23, 2007 7:52 am Post subject: Fuel Sender Wire Length

The answer to this may be staring me in the face, but I can't figure it out.



-8A QB, so I haven't had the pleasure of a lot of fuel tank work. Also, since the tank is closed, access is restricted. I'm trying to install Van's float- type fuel senders, but can't figure out the wire dimensions. Plan 16A makes one reference to the nearly horizontal segment as "Approximately 3 inches". However, the ½ scale view is drawn showing that segment over 4 inches. No reference at all to the "vertical" segment length.



Can anyone help by both giving me the dimensions you used - and pointing out how you determined them? Is there a missing directions page that I may have filed away so securely 2+ years ago that it's missing?



I checked the archives with more confusion than success -  some folks were talking about different left and right tank dimensions. Where did that come form?

Paul Valovich

N192NM Reserved

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n616tb(at)btsapps.com
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Posted: Sun Sep 23, 2007 8:37 am Post subject: Fuel Sender Wire Length

I have to admit I am not sure how you would do this very accurately in a

closed tank.  I presume the quick built tanks come with no senders

installed.  Maybe another quick build kit builder will respond with

something more sensible but is it possible to take your senders to another

builder with an open set of tanks to get those cut, bent, and fitted for

maximum effectiveness?  There probably still is some minor differences

between one tank and another, but you may be able to get pretty close.



Tim



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N777TY

Joined: 09 Apr 2006
Posts: 69
Location: Charlotte, NC

Posted: Sun Sep 23, 2007 8:54 am Post subject: Re: Fuel Sender Wire Length

There's a separate drawing that you should have received with the senders (if you bought them from Vans) w/ these dimensions.



It'd probably be best to contact Van's for a copy.

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jim jewell

Joined: 09 Jan 2006
Posts: 82
Location: Kelowna B.C. Canada

Posted: Sun Sep 23, 2007 2:22 pm Post subject: Fuel Sender Wire Length

Hi Paul,



Take a look at the outside end of the fuel tank in profile. The fuel sender 

flange and gasket will eventually be installed mounted on the rear face of 

the rear baffle of the tank.



For fine tuning;



If you take great care as to the sender's correct vertical height and it's 

orientation as to left or right tank and clamp the sending unit onto the end 

flange outside the tank end. You should be able to adjust the float 

actuating wire length and shape to provide the correct movement of the 

sender arm.

Be sure to check electrically with a meter or the gage itself. mark the gage 

as to left or right for later installation.



I would use a piece of scrap material about the thickness of the gasket 

clamped to the tank rear flange with the sender temporarily mounted to it 

with a couple of screws or clecoes.



Careful measuring with correct positioning and alignment of the sender 

mounting face with the rear tank baffle will be important.



Jim in Kelowna

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