I know exactly zip about Honda engines and I'm trying to learn. I've rebuilt and repaired plenty of V8's but I'm picking up this Prelude to be used as an open track/autocross car. It has some engine problems and I want to learn some things about it so I can attack and repair my brother's screw-ups.

First, the timing belt broke and he replaced it (didn't check valves). I can't remember if it's a SOHC or DOHC so it may or may not have bent some of them. They drove it for a while then it ran hot and quit. It wouldn't start but after sitting for a while, it will start but the idle fluctuates up and down. No coolant in the oil so that's a good sign. I'm just not familiar enough with this engine to know what all could have gone wrong with it. I haven't pulled the head yet.

Thanks to all.

 

only 9 views, eh?

Anyone?

 

Adjust the valves. It could be that the valves are bent a little and leaking when they expand when the engine gets warm. thats why it runs good cold. Either DOHC or SOHC will bend valves.
good luck