breather pipe wont budge

The breather pipe that connects the oil filler cap to the throttle housing appears to have affixed itself to the metal at the throttle housing. I don't want to cut it off, just remove it for cleaning.

Has anyone any tips for removing a good pipe that is solidly fixed (no softening or damage) by heat to the metal.

Thanks

Try heating it gently with a hair dryer.

This has given me an idea.

How about this. After I next use the car, open the bonnet and attempt to loosen the pipe while things are warm, then reset the pipe and hopefully the next time I try to remove it, when the engine is cold, I,ll have more luck.

Thanks

Sp.

PS. Don't have a hair dryer