A loose timing chain should be replaced.
Your mechanic has put the distributor in wrong or he has the plug wires on the cap wrong.
If it broke, yes.
timing belt has nothing to do with transmission so it is possoble for you to have a timing belt it may be a timing chain also the purpose of the belt or chain is to keep the crank shaft turning in time with the cam shafts yes, the timing belt is independent of the transmission.
timing chain timing chain
Timing Chain
timing chain timing chain
timing chain timing chain
No Belt=It has a Timing Chain.=
It has a timing chain
Take the valve cover off of one bank of cylinders, have someone turn the engine over, and watch to see if the cam is turning. If not, the timing chain or belt is broken.
Timing chain
It has a timing chain.