Ok so i am about to tackle the task of replacing the water pump on my 91 164b i figured while i was at it i would do the timing belt as well. Now the problem i have is i am afraid to screw it up. I have worked on every other car i have ever owned/rebuilt simple chevy motors but this is a different breed. Are there any repair manuals out there? i searched and really came up empty handed. Any help will be greatly appreciated.