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Changing a thermocouple issue

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The new thermocouples I bought are slightly longer than the ones I am replacing. Should I extend them slightly out the back of the holder, add washers to increase the outside clearance, or is it okay for them to touch the end of the sleeve they are in?

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Cut them to length. One wire is Cromel (positive) one is alumel the only thing that matters is the junction so cut them to the exact length you need at the back end to match the length of the original exactly and reinstall per manufacture. Protection tube type must be long enough to  extend all the way down the tube and touch  as Neil mentioned. Oh if you accidentally lose track or cut off the red marker, the red is magnetic and the yellow is not.

Edited by Bill Kielb

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