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Is 60/40 solder fine for splicing wires that have to endure hot engine bay temps?

up vote 14 down vote favorite

I need to splice the pigtail connectors from my old O2 sensors onto the new O2 sensors since the new connectors have a different shape.

As the sensor is right behind the engine and will experience high temperatures, I want to know whether regular 60/40 solder will hold up.

2 Answers

up vote 4 down vote accept

It should hold up. It melts at around twice the temperature where water boils, which I don't think you'll ever experience in the engine bay (unless it's touching the exhaust). But the greasiness in the engine may make for a poor adhesion.

BTW: I am one of those people who would rather crimp than solder.

up vote 3 down vote

Yes it will be fine...if you correctly solder it. If you dont know how to solder then i would suggest a crimp.


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Is 60/40 solder fine for splicing wires that have to endure hot engine bay temps?

up vote 14 down vote

I need to splice the pigtail connectors from my old O2 sensors onto the new O2 sensors since the new connectors have a different shape.

As the sensor is right behind the engine and will experience high temperatures, I want to know whether regular 60/40 solder will hold up.


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up vote 9 down vote

It should hold up. It melts at around twice the temperature where water boils, which I don't think you'll ever experience in the engine bay (unless it's touching the exhaust). But the greasiness in the engine may make for a poor adhesion.

BTW: I am one of those people who would rather crimp than solder.

edit

@Paulster2, if the heatshrink touched the exhaust it wouldn't last very long. I'd solder clean, freshly-stripped wires, cover them in heatshrink and strap them out of the way. - Chris H Feb 9 at 11:23

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