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Engine Specific Info and Questions => TDI Engine -General Info => Topic started by: paolomarks on November 22, 2011, 08:02:55 pm
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Hello, I have just installed a westach egt gauge and thermocouple in my Vanagon AAZ. How should I connect the two? More specifically, what gauge wire and should I solder the connections or crimp. On a similar note, how would a wire with more/less resistance effect the gauge reading. Thanks, Paolo
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It is dumb but you shouldn't soldier. I called westach and they want you to use only their crimps and wire. It makes sense to a point, but I think if they would disclose what they use you could find it elsewhere cheaper. If it is a K type gauge you can use up to 6 foot IIRC of K type thermocouple lead. Westach has some real small gauge stuff that they say to use that isn't K type, it is something different and they said you could use up to 20 foot without gauge inaccuracy. If you search their site you will find the crimps. I bought plenty just in case I needed to get it apart more than once. Also, their instructions on which probe wire goes to which gauge wire is a little sketchy in my opinion. At least the ones I got were.
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Yeah, you have to use crimp or plug-in connectors of the same type of material as the wires; one is inconel, the other alumel, for type-K I believe.
I'm looking for the same thing right now, too, an extension for my Syncro. aircraftspruce.com has extension cables & specialized connectors, as do other suppliers, like Grainger. Google thermocouple cable.
They are not cheap... :P