I have a 2005 Giant OCR3 road bike that has Shimano Sora index shifters. These Sora shifters have the shift lever integrated with the brake lever.
My chain is rubbing against the front derailleur cage and I'd like to adjust the derailleurs to fix this problem. My bike's rear derailleur has a barrel adjuster on the back of the derailler and I've been using this barrel adjuster to adjust the wire tension for the rear derailleur However, I'm not sure if I've been adjusting the cable tension for the front derailleur properly.
Here's a picture of the shift cable and housing for my front derailleur,
A higher res version of the same image can be found here,
How do I adjust the cable tension for my front derailleur with this type of cable housing and adjuster? Do I turn the knurled/splined silver cylinder to adjust tension? If so, which direction to increase the tension. I've been trying to use the silver cylinder to increase/decrease cable tension, but I'm not sure if it is making a difference. There's also a little knurled black cylinder that's next to the silver cylinder and between the silver cylinder and the break lever - do I need to turn this thing to adjust the cable tension?
Also, even though my rear derailleur has a barrel adjuster on the actual derailleur, can I also adjust the cable tension for the rear derailleur using the silver cylinder that is also present on my rear derailleur cable housing (just like the front derailleur)? If so, which way do I turn the adjuster to increase tension?
Thanks in advance