Timing chain

Need more information like why was it changed? Also how did it run before it was changed?

Alright then when the timing chain failed the engine could have bent a valve. If the engine is timed correctly then a compression test should be performed. Didn't your mechanic suggest that when it ran so bad?

If it ran fine before unless he broke a spark plug or did not time it right or something else was not done right. Then the only other thing I can think of is when the chain failed a piston might have hit a valve and bent it. An engine draws in air to compress to make pressure for a explosion inside the engine. Then fuel is put in the pressurized combustion chamber and ignited for the explosion to make the engine rotate and make power to go down the road. If there isn't enough pressure made in some or all the cylinders those cylinders will not run or contribute power. The mechanic should know all this. Ask him if he did a compression test that checked the pressures in each cylinder. If spent take very long to do on that engine.

Please let us know what you find out so it will help others.

So how did he time the engine when he changed the chain.

Here you go.

Your welcome so the timing when he put it all together was just off?

That sucks sounds like the guy just didn't know what he was doing.