Re: Finding an Off the Shelf Gas Tank Fuel Sender for 47 Packard

Posted by HH56 On 2017/3/26 13:47:40
Very good. I like your approach and it may be the simplest solution and definitely cheaper than having KM Lifestyle make a sender in the old S-W range. Believe the 35-240 is the new S-W range and has become more or less a universal or aftermarket standard. There is one 0-100 ohm modern sender I found that MIGHT be able to be made to work but it seems to only be available in Australia. Their website shipping calculator didn't work for me to find an amount to ship to US but expect it is probably more than the sender. No specs as to which end is the 0 ohm side.http://www.s3performance.com.au/acewell-100-ohm-fuel-sender/ACE-TS

To carry your experiment farther, I wonder if the resistor in the 16-158 sender is linear.. If so, could the arm be longer and bent or else a sleeve or collar made to slip over the original arm mounting method to change the wire location. Make it so when float hits the top of tank sender is at 0 ohms. Use extra length on the wire to extend the float so it won't use the entire range of the resistor -- say have it long enough it hits the tank bottom at 100 rather than the 158. That would be roughly 3/5 or 2/3 of the travel allowed. That is what I did with the pot I used -- It was a 400+ ohm linear pot but I am only using something like 1/4 of the range.

While you still have your mockup in place would you test and guesstimate an idea of how long the wire would need to be so it stops at 100 and if the longer wire would fit in the tank?

If that approach doesn't work out, publishing your final ohm value on the 240 sender and the particulars of how the wire was sized and bent should help several out.

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