[TA Forbes]

Hello, Kevin: I feel your pain, as I had to do some extensive work on my 128 that had supposedly been electronically reconditioned by someone's "technician."

Yes, you can ALWAYS replace a cap with one that has a higher voltage rating. Personally, I only order 450V electrolytics to be able to cover most applications, and 630V film caps for .001mFd-.68mFd values.