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> new uro cht sender question, Bought a uro cht sender with a washer on it
buck toenges
post Oct 29 2017, 05:18 PM
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I bought a uro cht sender that has a steel colored washer on the threaded area. Does this replace the copper washer? It isn't steel since it won't stick to a magnet.

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Buck
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Mikey914
post Oct 29 2017, 10:05 PM
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Why did you buy the URO version?
Send it back I'll meet any URO price.Again we made these and they decided to try to step on us. SO F-em!

There is more than just the washer that a problem there.
The body is steel and they zinc plated it. So you put Zinc plated steel into aluminum and use it to measure resistance (read small current as it is grounded to the head) Sound like a recipe for corrosion? It gets better. As you get corrosion the part will measure or not measure differently changing your cold start map.

We made ours from stainless.

What did it cost?
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Van B
post Jul 13 2022, 10:31 AM
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QUOTE(Mikey914 @ Oct 30 2017, 12:05 AM) *

Why did you buy the URO version?
Send it back I'll meet any URO price.Again we made these and they decided to try to step on us. SO F-em!

There is more than just the washer that a problem there.
The body is steel and they zinc plated it. So you put Zinc plated steel into aluminum and use it to measure resistance (read small current as it is grounded to the head) Sound like a recipe for corrosion? It gets better. As you get corrosion the part will measure or not measure differently changing your cold start map.

We made ours from stainless.

What did it cost?


Mike, I know this is an old thread, and don't take this the wrong way, but the effort you put into that post would be far better spent on your product listing so that everyone can know.

I would also say that on a galvanic corrosion index, zinc is much closer to aluminum which is why zinc plating is so effective in automotive parts. Stainless on the otherhand may have strong resistance to oxidation on it's own, but its anodic properties are on the other end of the scale and can heavily corrode aluminum.

https://www.monarchmetal.com/blog/galvanic-...tions-answered/

Van
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