Triumph Repair: TR6 Oil Pressure Gauge; tube installation, oil pressure gauge, gauge tube

Question
QUESTION: I'm trying to fit new 3/16th inch tubing on the oil pressure gauge; but, it is too tight.  If I heat it, it collapses.  What to do?

ANSWER: What kind of tube are you using? and what are you trying to force it on to? Or into?
Howard

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QUESTION: 3/16" nylon airbrake tubing

Answer
If you are trying to force this nylon tube over a metal tubing, don't try to heat the nylon but heat the metal tube if it is not to close to the gauge so as to damage the gauge. I would guess the same is true on the other end. first smooth the end of each metal tube with a file and then Emory cloth or sand paper before heating the metal so it will have a chance to soften the nylon and slide into it.
Howard