I'm working on a 1993 Mercury Capri with the Mazda B6D engine. I had to replace the timing belt along with a few other things. I aligned the cam gears and the crank gear to the marks in these pictures but the engine still does not seem to run right, i.e., prone to shutting off, unburnt fuel, and a rough idle. After talking to the owner/driver of the car I found out that she had been having to slightly depress the gas pedal at a stop to prevent the engine from shutting off. She also recalled someone mentioning the distributor to her as needing to be replaced, although I'm not sure how reliable that information is. However, based upon what she said about her preventative actions to keep the engine from shutting off, I raised the idle to the point to where it idles around 1000 rpm, which I'm guessing is probably closer to what it should be than 600 rpm. However, the idle is still somewhat rough and there is still a significant amount of unburnt fuel. Does it sound like to anyone that I still haven't aligned the gears right, or is it more likely something else, such as the distributor?
![Image](http://www.autozone.com/images/cds/jpg/small/0900823d80144233.jpg)