Hello everyone. So I got a little bit of a problem. I recently bought a 2000 Prelude that had a H23 swapped in. The transmission was bad so this past weekend I took the old trans out a swapped in another M2y4 trans. I put a new Clutch and Pressure Plate from Oreillys on but left the old Flywheel. Got everything all hooked back up. Bleed the clutch and it won't go into gear while the car is running. But will when the car is off. Which is a problem.. So I started the car while it was in reverse and it backed up and died. Then I could get it out of reverse without rocking the car. Does anyone know what could be wrong. Slave cylinder ? Needs more bleeding ? I'm just lost on what it could be.. So any and all help will be greatly appreciated !

 

Your clutch pressure plate is not releasing correctly, and because the input shaft is still rotating because of this, getting into gear is next to impossible without potentially damaging the transmission. I would first ask, is the release bearing and fork installed correctly?

Then, start with bleeding the clutch. If the system worked prior to this changeover, this should be the only thing you need to worry about. If you are sure the clutch is bled correctly, have an assistant watch the slave cylinder push rod for retraction when the clutch is pressed to the floor. If it creeps back towards the resting position, you have air in the line, a leak, a faulty slave (this will leak fluid somewhere), or a faulty master (may leak externally or internally).

A two man bleed operation is preferable in situations where the clutch behaves like this. It is also desirable to not disconnect the hydraulic lines during service to prevent this problem in the future.