1n73r.net

MR2 Head Job

On my way home one day I downshifted in my 1987 Toyota MR2 going up a big hill and downshifted a bit too far. I over-revved the engine and the engine died on me. I was able to get the car running but there was obviously something wrong. I did a little bit of troubleshooting the next weekend and found I had lost all compression in my number two cylinder. I didn’t have the time/money/place to fix it so I just let it sit for a couple months while I decided what I was going to do. However, with my DMV renewal quickly approaching I realized I had to do something. Last month I brought the car to a friend of my dad who does some mechanic work on the side. He quickly narrowed the problem down to something wrong with one of the the exhaust valves and I left the car with him to fix it. Of course this meant pulling the head, replacing gaskets, and obviously doing some head work. While he was going to be doing that, I gave him a few other things to look at since I knew the car would be there for at least a couple weeks.
I just got the car back last week, after many trips dropping off parts and getting status updates, and I don’t think the car has ever run this well since I have owned it. I just wanted to share a couple before and after pictures of the head in case anyone else is planning on having head work done on their own cars. In total the head machining cost $210 and included 2 valve replacements, a 3 angle valve job, and decking the head (making sure it is level). Enjoy the pictures, I think I might go for another drive!