1994 Isuzu Amigo timing belt & water pump replacement

You need a copy of the manufacturer's service manual. There will be many pages of instructions with line drawings and torque specs. Don't waste your time with Chilton's or Hayne's manuals. Those only cover things do-it-yourselfers can handle, and this is beyond that. You can also go the top of this page, point to "Repair and Service", then click on "Manuals" to go to a site where you can buy a subscription to an online manual for your car.

This is an interference engine too, so you have to be real careful when turning the crankshaft and camshaft by hand. If you feel any resistance, stop and back up. If you're replacing the timing belt because it broke, you'll have bent valves too, so you'll be in for a lot more work.