1984 Chevette change timing belt

My first suggestion is calling a qualified mechanic, as this is a delicate job, and any mistake can compromise the integrity of the engine.

To DIY, you have first to remove the flat cover on the passenger side of the engine. It goes around the crankshaft gear,water pump gear,exaust gear,intake gear.
If you have never done such a kind of job you risk to damage the engine in a bad way.

If you want to do it yourself buy the Haynes manual, and refer to it for pictures and procedure

Regards

The fact that you ask the question indicates you do not have the expertise to do this. Severe damage can be done to the engine if this is done incorrectly. Find a good trustworthy mechanic and pay the expert to do this job.

hlo