Nah, as long as the edge of the nipple is still smooth (not corroded and rough) the vacuum line will still slide on and off, just with some extra tension. I've yet to have a silicone hose not just slide back on even with the zip tie on it... like I said the stuff is slick... in a bad way for this kind of application. Besides, you don't get a choice really; Do it now or do it later after getting pissed about numerous vacuum leaks.
__________________
If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum.
If you're so inclined I'm always more than happy to accept tips via PayPal. 
Tip Jar ---> 
|