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