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  • November 30, 2023, 08:08:49 PM

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Author Topic: Fuel sender Replacement  (Read 4863 times)

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Offline MIPS

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Re: Fuel sender Replacement
« Reply #30 on: June 18, 2023, 10:36:02 PM »
Heat did it. I put it in a micro-vice with smooth clamps and applied heat. Reshaped itself back to nearly straight.
Bakelite and phenolic composites shouldn't do that. At least, not at temperatures this low. Don't like that at all.




What kind of silicone specifically did you use? I typically don't stock materials that are long-term resistant to fuel vapor or immersion because it's normally quite expensive.

Offline rmick

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Re: Fuel sender Replacement
« Reply #31 on: June 18, 2023, 11:31:52 PM »
I used a red RTV. It is fuel resistant May fill the gap the length of the board. May prevent it from warping again.  Be sure to let it cure completely before exposing it to fuel again. May also rework the tabs a little on the board to allow for expansion at the slots.
« Last Edit: June 18, 2023, 11:36:58 PM by rmick »
72 Javelin AMX
72 Javelin SST
72 Gremlin with 4.0
81 SX 4

Offline MIPS

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Re: Fuel sender Replacement
« Reply #32 on: June 19, 2023, 10:01:42 PM »
Permatex RTV Red is NOT rated for partial or total immersion in petroleum. This is outlined on the tube and the back of the packaging.
Instead I will be using "Seal-All" which states on the packaging it is resistant to alcohol, paint thinner, most solvents and gasoline once fully cured.

My solution for a backing support is a piece of phenolic bar, sanded down to just slide underneath and clear the rivet and the tabs on the ends of the wafer were filed to allow more room for expansion.
Also while you mentioned you already altered yours as well, APD did get back to me and offered an out-of-warranty replacement if I paid shipping both ways. If people are seeing repeated failures like this they want to know and so does the manufacturer. Unfortunately I already started tweaking with mine before I got the reply and I need to be back on the road Wednesday, so we'll see how long my fix holds out and if it fails, I'll have to order another sender.



Offline rmick

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Re: Fuel sender Replacement
« Reply #33 on: June 20, 2023, 12:03:41 AM »
Looks like a good fix. Hopefully APD works with the vendor to resolve this issue for future customers.
72 Javelin AMX
72 Javelin SST
72 Gremlin with 4.0
81 SX 4

 

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