Hello, I have a question for those who have a better understanding of the mechanics involved. If old, loose fan belts are removed, replaced with new, and tightened to new specs, but the original aging timing belt is left in place, could the presence of the new belts increase the risk of the old timing belt failing? This timing belt is very old and I intend to replace it soon, but I am able to replace the fan belts now. Should I do this or should I continue to use the old belts and bring them to used tension specs until I am ready to replace the timing belt? Should I consider using the old belts at old tension specs?