Amen to Wayne's advice to look at simpler causes before you mess with color circuits/adjustments. To quote various old manuals, make sure you have a perfect (well, darned good and stable) black and white picture before you tackle color stuff.
If your 3.58-Mhz oscillator wasn't working, you'd more likely have rolling "rainbow" bands of color, not stable bars, as I learned in struggling with my sad old CTC-4.
Phil Nelson
Phil's Old Radios
http://antiqueradio.org/index.html
