2003 VW Jetta TDI- have been reading posts on how to change the timing belt. This car has 100,000 miles on the original belt. Seems like it takes alot of special tools to hold things in place or to hold parts so that you can retighten them. After you are done with the physical replacement of the belt and other parts there still is the timing of the injector pump. Can anyone give me some helpful advice? Thanks in advance