replacing sending unit

[azmichael1]

I recently purchased a sending unit for my '48 p-15 (6volt) from J.C. Whitney and thought it would be a simple drop in, wire up installation but they talk about shortening the arm as needed but don't tell how to determine what that length should be ........has anyone here installed one of these or have any info ? Any help will be greatly appreciated

[Plymouthy Adams]

first off..if this is not a two wire sender (post marked 1 abd 2 with base as ground)..you guage is not going to work..if it is also not 30 ohms across the sender it will not work...as for the arm..simulate the arm by measureing the depth of your tank and set the travel for to match outside of the tank unit..then install. ( now it is possible to have the single wire 49 series one unit..which still needs be the 30 ohms if my memory is correct)

Edited February 28, 2010 by Tim Adams

[Don Coatney]

Sending unit for what? Gas tank?

Is your original a 1 or 2 wire unit? I dont think the JC Whitney gas tank sending unit will work on a P-15.

[azmichael1]

Thanks for your input guys, the sending unit I got from J.C. Whitney is a single wire and although that was one my main concerns when ordering it,their customer service assured me it would work but as often happens, that may not necessarily be true. Thanks again

[aero3113]

I got this single wire sending unit from JC Whitney and modified it to work. It works great. I forget the part #. There is also a link on how to modify it forgot what that is also, I did mine a little different from the link. Im sure someone here knows what link I am talking about.

[aero3113]

I found the link

http://www.ply33.com/Repair/fuelsender.html

[HanksB3B]

as long as it's a 6volt single wire setup correct. I would like to order one from JCW.

Thanks,

Hank