ok i have a boosted ef civic z6 with zc tranny ok now when the car is off it wants to go in all the gear fine.. but now when i turn the car on and try putting it into gear nothing happens nothing but a grind and it just doesnt want to go in i replaced the pressure plate with the act heavy duty. i have a act 4 puck street flywheel. aftermarket clutch cable . shift linkage is fine. i did not crack the case of the tranny to see what was going on internally. does anyone know or think what my problem is. any answer is great thank you

 

if its cable i would check to see if you cable went goofy and is pulling up on the bar it connects to in the front of the tranny i had the same problem and it turned out the the cable was slighty pulled and the point it was adjusted.

 

Sounds like a throw out bearing problem

 

ok now i put a new throw out bearing in, when the car is lifted off the ground it goes through all the gears perfectly fine. now when i put the car down on the ground same thing its like hitting a brick wall. no gears.

 

anyone.

 

Well if your sure you put everything together right, I would say a synco in the trans. is fucktard. I just rebuilt my crx si transmission last week at my work. Replaced the all the bearings and reverse and 5th gear syncros. Its tight and shifts like brand new.