[DeTomaso] Fuel level sender removal

Larry Stock larrys at panteraparts.com
Tue Feb 12 16:00:12 EST 2019 

You can remove and install the fuel tank sender without removing the
window.
Larry

On 2/12/19, 12:53 PM, "DeTomaso on behalf of Mike Drew via DeTomaso"
<detomaso-bounces at server.detomasolist.com on behalf of
detomaso at server.detomasolist.com> wrote:

>Thanks Doug,
>
>Sender is still in the box. I am just trying to confirm its possible to
>remove the sender from the tank without removing the window before
>starting the surgery. I will probably do it Monday.
>
>Mike
>
>Sent from my iPhone
>
>> On Feb 12, 2019, at 12:49, Doug <doug351c at gmail.com> wrote:
>> 
>> Mike,
>> 
>> You'll cause no harm if you connect the Yellow and the White/Black
>>wires to the sender wrong.
>> Both of the sender's terminals work by pulling the voltage towards
>>ground, one does so with a switch and the other with a variable resistor.
>> 
>> I'm assuming you've already installed the sender in the tank and hence
>>you can't move the sender's float arm.
>> If you have an Ohm-meter, it's likely that even with the gas tank
>>empty, the gauge terminal will measure as a higher Ohm reading than the
>>tank-empty lamp terminal.  Both of these measurement should be made
>>between the respective terminal and the sender's ground terminal.
>> 
>> Doug Braun
>> Blue 73L #5505
>> 
>> -----Original Message-----
>> From: DeTomaso [mailto:detomaso-bounces at server.detomasolist.com] On
>>Behalf Of Mike Drew via DeTomaso
>> Sent: Monday, February 11, 2019 7:39 PM
>> To: Julian Kift <julian_kift at hotmail.com>
>> Cc: De Tomaso List <detomaso at server.detomasolist.com>
>> Subject: Re: [DeTomaso] Fuel level sender removal
>> 
>> Julian,
>> 
>> Right, got that.  That¹s not the issue.
>> 
>> The issue is, which contact ON THE SENDER is for the needle and which
>>for the light?  Both are connected to wires that disappear inside the
>>sender. I would like to be able to simply tell visually which is which
>>without having to install and hook them up.
>> 
>> Worst case, I have a 50/50 chance of success.  Actually probably more
>>like 75/25 because one would hope the new sender follows the same scheme
>>as the old one. 
>> 
>> This whole thing is being driven not by a bad sender (my existing one
>>is perfect), but instead by a bad gas tank.
>> 
>> Somebody gave me a free perfect-looking tank 25 years ago. When my old
>>tank started leaking (from the top it turns out) I reconditioned the
>>free replacement inside and out, after carefully inspecting it of
>>course, and then installed it (a non-trivial undertaking since it
>>required engine removal).
>> 
>> Come to find out that free gas tanks are free for a reason!  The fuel
>>pickup pipe inside the tank apparently has a pinhole about 2/3 of the
>>way up. It works perfectly when the tank is full. At about 2/3 full fuel
>>pressure drops to less than 1 psi and when the level is less than that,
>>it doesn¹t feed fuel at all.
>> 
>> The later cars had the fuel pickup built into the sender. So by
>>installing a later sender into my early tank, I can move the fuel hose
>>over to the sender and fix my problem without having to pull and change
>>the tank again.
>> 
>> And, I will have a perfect Pre-L sender available for sale afterwards
>>too. 
>> 
>> Mike
>> 
>> Sent from my iPad
>> 
>>> On Feb 11, 2019, at 19:29, Julian Kift <julian_kift at hotmail.com> wrote:
>>> 
>>> Of course you could just go to Pantera Place and look at those wiring
>>>diagrams Bill spent so much time developing!
>>> 
>>> Yellow low fuel warning light and white/black fuel gauge.
>>> 
>>> Julian
>>> 
>>>> On Feb 11, 2019, at 19:22, Julian Kift <julian_kift at hotmail.com>
>>>>wrote:
>>>> 
>>>> Mike,
>>>> 
>>>> Once you get the unit out it should be pretty evident which wire
>>>>feeds what and wether that is oriented the same on the new sender. In
>>>>theory it shouldn¹t matter as the wires are just connected to either
>>>>side of a variable resistor one side to the wound resistor coil the
>>>>other the resistor wipe arm (float).
>>>> 
>>>> Julian
>>>> 
>>>>> On Feb 11, 2019, at 18:40, Mike Drew via DeTomaso
>>>>><detomaso at server.detomasolist.com> wrote:
>>>>> 
>>>>> Hmm,
>>>>> 
>>>>> Server seems to have stripped my photo away....
>>>>> 
>>>>> 
>>>>> <image1.jpeg>
>>>>> 
>>>>> 
>>>>> Mike
>>>>> 
>>>>> 
>>>>> Sent from my iPad
>>>>> 
>>>>>> On Feb 11, 2019, at 18:34, Mike Drew via DeTomaso
>>>>>><detomaso at server.detomasolist.com> wrote:
>>>>>> 
>>>>>>    Thanks Curt.
>>>>>> 
>>>>>>  Turns out I had a photo of my sender, and my recollection was
>>>>>>  completely wrong. Mine is two-wire with a ground tab.
>>>>>> 
>>>>>>  image1.jpeg
>>>>>> 
>>>>>>  I have to just hope that the new sender respects the old sender
>>>>>>wiring
>>>>>>  orientation.
>>>>>> 
>>>>>>  Still waiting to hear from somebody who has successfully pulled the
>>>>>>  sender without removing the window?  It may not be possible.
>>>>>> 
>>>>>>  Mike
>>>>>>  Sent from my iPad
>>>>>>  On Feb 11, 2019, at 17:29, Curt Hall <[1]cuvee at sbcglobal.net>
>>>>>>wrote:
>>>>>> 
>>>>>>  Mike...
>>>>>>  Here is a photo of my 73. I had problems last year with gauge
>>>>>>reading
>>>>>>  on E? Pull the sender and found the Float was full of fuel,
>>>>>>replaced
>>>>>>  the float and all is good. 50/50 chance of wires bring wrong, I
>>>>>>have my
>>>>>>  windows out so I was able to hook up and test things before
>>>>>>installing.
>>>>>>  Good Luck Curt
>>>>>>  <20190211_172047.jpg>
>>>>>>  [2]Sent from Yahoo Mail on Android
>>>>>> 
>>>>>>  On Mon, Feb 11, 2019 at 3:00 PM, Mike Drew via DeTomaso
>>>>>>  <[3]detomaso at server.detomasolist.com> wrote:
>>>>>> 
>>>>>>  All,
>>>>>>  It seems to me it's possible to remove the fuel level sender
>>>>>>without
>>>>>>  removing the side window glass. In fact I'm fairly certain I've
>>>>>>done
>>>>>>  it, years ago, but can't remember for certain. Can anybody confirm
>>>>>>  please?
>>>>>>  Also does anybody know which wire goes where on a two-wire sending
>>>>>>  unit? My old one has three wires but new one has no provision for
>>>>>>  ground, so I will have to fabricate one. I have a 50/50 chance of
>>>>>>  getting the other wires correct but would like to improve my odds.
>>>>>>I
>>>>>>  have no reason to believe the new sender will respect the wiring
>>>>>>  orientation of the old one?
>>>>>>  Mike
>>>>>>  Sent from my iPad
>>>>>>  _______________________________________________
>>>>>>  Detomaso Email List is not managed by POCA
>>>>>>  Posted emails must not exceed 1.5 Megabytes
>>>>>>  DeTomaso mailing list
>>>>>>  [4]DeTomaso at server.detomasolist.com
>>>>>>  [5]http://server.detomasolist.com/mailman/listinfo/detomaso
>>>>>>  To manage your subscription (change email address, unsubscribe,
>>>>>>etc.)
>>>>>>  use the links above.
>>>>>>  Members who post to this list grant license to the list to forward
>>>>>>any
>>>>>>  message posted here to all past, current, or future members of the
>>>>>>  list. They also grant the list owner permission to maintain an
>>>>>>archive
>>>>>>  or approve the archiving of list messages.
>>>>>> 
>>>>>>  <20190211_172047.jpg>
>>>>>> 
>>>>>> References
>>>>>> 
>>>>>>  1. mailto:cuvee at sbcglobal.net
>>>>>>  2. 
>>>>>>https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrow
>>>>>>th_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Gl
>>>>>>obal_YGrowth&af_sub3=EmailSignature
>>>>>>  3. mailto:detomaso at server.detomasolist.com
>>>>>>  4. mailto:DeTomaso at server.detomasolist.com
>>>>>>  5. http://server.detomasolist.com/mailman/listinfo/detomaso
>>>>>> _______________________________________________
>>>>>> 
>>>>>> 
>>>>>> Detomaso Email List is not managed by POCA Posted emails must not
>>>>>> exceed 1.5 Megabytes DeTomaso mailing list
>>>>>> DeTomaso at server.detomasolist.com
>>>>>> http://server.detomasolist.com/mailman/listinfo/detomaso
>>>>>> 
>>>>>> To manage your subscription (change email address, unsubscribe,
>>>>>>etc.) use the links above.
>>>>>> 
>>>>>> Members who post to this list grant license to the list to forward
>>>>>>any message posted here to all past, current, or future members of
>>>>>>the list. They also grant the list owner permission to maintain an
>>>>>>archive or approve the archiving of list messages.
>>>>> _______________________________________________
>>>>> 
>>>>> 
>>>>> Detomaso Email List is not managed by POCA Posted emails must not
>>>>> exceed 1.5 Megabytes DeTomaso mailing list
>>>>> DeTomaso at server.detomasolist.com
>>>>> http://server.detomasolist.com/mailman/listinfo/detomaso
>>>>> 
>>>>> To manage your subscription (change email address, unsubscribe,
>>>>>etc.) use the links above.
>>>>> 
>>>>> Members who post to this list grant license to the list to forward
>>>>>any message posted here to all past, current, or future members of
>>>>>the list. They also grant the list owner permission to maintain an
>>>>>archive or approve the archiving of list messages.
>> 
>> 
>> ---
>> This email has been checked for viruses by AVG.
>> https://www.avg.com
>> <Fuel gauge and Sender.pdf>
>
>_______________________________________________
>
>
>Detomaso Email List is not managed by POCA
>Posted emails must not exceed 1.5 Megabytes
>DeTomaso mailing list
>DeTomaso at server.detomasolist.com
>http://server.detomasolist.com/mailman/listinfo/detomaso
>
>To manage your subscription (change email address, unsubscribe, etc.) use
>the links above.
>
>Members who post to this list grant license to the list to forward any
>message posted here to all past, current, or future members of the list.
>They also grant the list owner permission to maintain an archive or
>approve the archiving of list messages.

More information about the DeTomaso mailing list