1991 Audi 90 20v quattro sport - ep5 - Timing belt service

Alright, more progress on the 1991 Audi 90 20v quattro sport! while it was running and driving the timing belt was at least 15 years old! not something that I would trust, my philosophy is that if you're not 100% sure that its been changed in less than 90 thousand miles, just replace it. These 20v motors are all interference, meaning if that belt snaps, you're going to be smacking pistons into valves and you're going to need a lot more work than if you had just changed the belt. I try to give some insight and good instructional video / explanations at critical parts, but isn't a step by step video with torque specs. Feel free to ask any questions below, i'll do my best to answer them. This information crosses over to the 7A and 3B but is also very applicable to the AAN ABY ADU as well as the 10v motor varieties (NG, WX, etc.). The work isn't hard but I try to stress the importance of the timing marks! know what you're getting into before starting!