Fuel Sender

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rcode
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Re: Fuel Sender

#21

Post by rcode » 26 Dec 2016, 19:43

Technology being what it was in 69, normal would definitely include the false fickering. Thanks for the option though, spot on!
69 XR7 CJ Black plate Triple R car, original selling dealer:
Star Lincoln Mercury, Glendale, CA
03 Cobra (ordered new)
LaBelle Ford LaBelle, Fl
"Tonight, We Ride"!

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Cavallino
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Re: Fuel Sender

#22

Post by Cavallino » 31 Dec 2016, 17:28

Had a restored sender that I was planning on using until the repro units became available. Thought folks might be interested in a side by side.

The reproduction unit looks to be a better quality that the original. Stainless helps and there is a small guard over the float lever which looks like it would work better than the two bent tabs on the the original unit and looks more stable.

Hopefully the low fuel thermistor last longer than originals!
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1967 XR7 GT

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TheRktmn
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Re: Fuel Sender

#23

Post by TheRktmn » 25 Nov 2017, 17:16

Don Rush wrote:
22 Dec 2016, 12:28
They are now in stock!

https://secure.cougarpartscatalog.com/s ... el%20repro
I installed mine in a completely empty fuel tank - should the LF light come on with the key on & gauge reading empty? I didn't want to leave it on for long in case the unit needs some fuel to cool it, but I did wait about 30 seconds.
A couple of notes:
The light does come on during start so I know the bulb is working.
The light worked with my OEM sender until hippie gas ate it (thus the new sender).
Bob

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'69 Cougar XR7, 460/C6. Caution: This car fitted with optional Caution Fan Sticker option!
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Don Rush
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Re: Fuel Sender

#24

Post by Don Rush » 27 Nov 2017, 10:34

Yes, the light should always come on when the unit is not submersed in fuel.

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TheRktmn
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Re: Fuel Sender

#25

Post by TheRktmn » 27 Nov 2017, 11:15

Crap. That's what I was afraid of. I will check the connector.
Bob

CCOA Member #8195
'69 Cougar XR7, 460/C6. Caution: This car fitted with optional Caution Fan Sticker option!
Internet Rule #6: Never confuse post count with expertise

Tachometers, Voltmeters, Plug & Play Headlight and Horn relay kits and more modernized innovations at
Rocketman's Classic Cougar Innovations: http://www.rccinnovations.com

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TheRktmn
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Re: Fuel Sender

#26

Post by TheRktmn » 27 Nov 2017, 11:39

No light. I ran wires from the sender to the connector to insure good connections, no light.

The light does come on during start (prove out circuit)

I know that grounding the wire from the gauge will make the gauge read full - Is there any way to test the circuit back to the light or bench test the sender?
Bob

CCOA Member #8195
'69 Cougar XR7, 460/C6. Caution: This car fitted with optional Caution Fan Sticker option!
Internet Rule #6: Never confuse post count with expertise

Tachometers, Voltmeters, Plug & Play Headlight and Horn relay kits and more modernized innovations at
Rocketman's Classic Cougar Innovations: http://www.rccinnovations.com

I am usually parked at The Curb: http://www.thecurb.org

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TheRktmn
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Re: Fuel Sender

#27

Post by TheRktmn » 27 Nov 2017, 12:16

TheRktmn wrote:
27 Nov 2017, 11:39
No light. I ran wires from the sender to the connector to insure good connections, no light.

The light does come on during start (prove out circuit)

I know that grounding the wire from the gauge will make the gauge read full - Is there any way to test the circuit back to the light or bench test the sender?
Yes there is. Grounding the low fuel wire (thermister) makes the relay click & the light comes on.

So the wiring, components and circuit from the tank is good.
The sender to the tank and the tank to ground continuity is all good, as is the sender to chassis (all checked with digital ohm meter w/tone).

At the sender, I have three posts and it is 'keyed' so the connector can only go on one way.
Fuel gauge post = good ground as expected.
Thermister post = open - expected ground.
Third post = ground - expected open.

Ideas?
Bob

CCOA Member #8195
'69 Cougar XR7, 460/C6. Caution: This car fitted with optional Caution Fan Sticker option!
Internet Rule #6: Never confuse post count with expertise

Tachometers, Voltmeters, Plug & Play Headlight and Horn relay kits and more modernized innovations at
Rocketman's Classic Cougar Innovations: http://www.rccinnovations.com

I am usually parked at The Curb: http://www.thecurb.org

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TheRktmn
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Re: Fuel Sender

#28

Post by TheRktmn » 27 Nov 2017, 12:36

I just dug out my old XR7 sender (the one eaten by hippie gas) and the posts-wiring match what I am seeing. The third post is 'riveted' to the sender plate so getting a ground there makes sense.

Unfortunately the thermistor is destroyed so it's no good for functional testing.
Bob

CCOA Member #8195
'69 Cougar XR7, 460/C6. Caution: This car fitted with optional Caution Fan Sticker option!
Internet Rule #6: Never confuse post count with expertise

Tachometers, Voltmeters, Plug & Play Headlight and Horn relay kits and more modernized innovations at
Rocketman's Classic Cougar Innovations: http://www.rccinnovations.com

I am usually parked at The Curb: http://www.thecurb.org

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TheRktmn
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Re: Fuel Sender

#29

Post by TheRktmn » 27 Nov 2017, 16:49

Figured it out. Working now.
Bob

CCOA Member #8195
'69 Cougar XR7, 460/C6. Caution: This car fitted with optional Caution Fan Sticker option!
Internet Rule #6: Never confuse post count with expertise

Tachometers, Voltmeters, Plug & Play Headlight and Horn relay kits and more modernized innovations at
Rocketman's Classic Cougar Innovations: http://www.rccinnovations.com

I am usually parked at The Curb: http://www.thecurb.org

DaveK
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Re: Fuel Sender

#30

Post by DaveK » 28 Nov 2017, 07:22

What was the issue?

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