Sorry to hear about your laser. This is what happened, you broke a cylinder head (piston head). It shakes the whole engine when running, I had a 91 eclipse do this to me. Its probably cheaper to replace the engine then have someone dig around in the block trying to rebuild it. I went through a huge trial and error before I found out what was wrong with mine. You might want to try this aswell. First check all spark plugs and plug wires (do not disconnect all plug wires at once, its hard to remember which one goes where) to see if they are clean and clear. Then have your coil pack (like a distirbutor) checked to see if it is operating right, this could fail and cause misfires to happend. Like I said the worst is that you broke a head, now you are lucky seeing that you are driving the 1st generation of these cars and the motors are cheap. It is a 2.0L and not the 1.8L? What you are looking for is an 89-94 4g63 engine(if it is a 2.0L). Well thats all that comes to my mind copy and paste this web address to your web search bar, here you will find the results for a new engine I know a few people around here that have these cars and motors in a junk yard if need be email me and I will see what they want for one of thier motors. (Mike)
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http://search.ebay.com/4g63-engine_W...chiZQQsaprcloZ