1988 Toyota tercel. How do I change timing belt?

SOURCE: 1999 Tercel. Timing belt/water pump interval change?

Hello tinaromano1: The factory specification are to replace the belt every 90,000 miles in severe service. I would recommend to replace at 90,000 no matter what the service would be. Keep in mind should the belt break there is always a chance engine damage may occur. Should you need further help just ask. Thank You for using FixYa. Roger

SOURCE: 1999 Tercel. Timing belt interval change - calendar limit?

Assume that an average driver does between 10-15K per year. If recommendation is 90K, then average change interval in years should be seven to eight years. Driving is not the only thing that causes the belt to fail...as with any rubber item, the rubber hardens over time (dry rot) and will begin to crack.
This can often be seen on old tires that have hard rubber compounds (such as perelli) cracks appear in sidewalls about an inch from wheel. Your belt is not a tire, but the rubber reacts the same way!
Some people say you can leave the timing belt on for up to 140-150K. I would never do this on anything I owned and would therefore not recommend anyone else do it. (even though it's expensive, it's less than a new engine}

SOURCE: Toyota tercel 1998 How to

The best way to get this procedure is to acquire a repair manual for that vehicle -- Pep Boys or similar will likely have one.

SOURCE: To change the oil pan gasket in a 93 Tercel

Stock the car doesn't come with an oil pan gasket but you can order one from rockauto.com you don't have to remove the A/C compressor for any of the jobs you listed. If you want to change the timing belt you need to remove the plastic rock guard under the motor on the passenger side. remove the spark plugs and using the socket turn the engine from the crankshaft clockwise until you are at TDC on #1 cyclinder. (compression stroke) Next remove the upper and lower plastic timing belt covers. The idler pulley is the one with the spring. Loosen the nut and remove the spring then you can remove the timing belt. It really isn't that hard to do. Maybe one afternoon.