How do you replace timing chain on 1991 Geo prizm?

To replace the timing chain on a 1991 Geo Prizm, first, disconnect the battery and drain the engine oil. Remove the timing chain cover by taking off any necessary components, such as the alternator and Power Steering pump. Align the timing marks on the crankshaft and camshaft gears, then remove the old chain and replace it with the new one, ensuring proper tension. Reassemble the components in reverse order, refill the engine oil, and reconnect the battery before starting the engine to check for proper operation.