I changed my timing chain because it broke and had the timing lined up and new spark plug and wires and car still wont run it fires but wont run Its a 1991 Olds cutlass supreme?
The 3.1l engine is a interference engine. Being dual over head cam if the chain is not properly set the pistons will come into contact with the exuast valves in the heads. This can bend the valves and even puncture holes in the pistons. What results is a total loss of compression. You may have set everything properly, but when the chain snaped if the engine was running, the damage is most likely already done. Sorry.