Location of timing belt in Saturn sc3 1992 on 1992 Saturn SC

Where is the timing belt/chain in a 1992 Saturn sc3 and how do you test to see if it is working?

Asked by for the 1992 Saturn SC
The SC engine is driven by a Timing Chain located in front of the engine, see #17 in the picture here

Failing timing chain can result in poor running, valve clatter, and loss of power. The timing chain is not an scheduled maintenance item.