Bicycle Tutor

My cable guide on bottom bracket is a press on type and doesn't have a screw.
Looked around the 'net for a replacement but all of them have a screw.
This is for an older Black Diamond, "Ascent" model mountain bike that I just got and need to get in shape.
thanks

Get a cable guide with a screw.

Then you have two choices:
1. drill and tap a hole in you BB housing - remove the bottom bracket first, and stuff something in there to contain the metal shavings. A wad of duct tape sticky side out works well.

2. Use 3M VHB tape to secure it on the outside. Clean the surfaces to be bonded with isopropyl alcohol (pharmacy), let try, then apply the tape. After you have in place, heat it up with a hair dryer to fully cure the adhesive.