Mazda Repair Questions? Ask Mechanics for Answers ASAP
I'd agree that this sounds like the clutch isn't fully disengaging
as you've already replace most of the clutch part I'd sya to check the condition of the clutch pedal itself
as I've known these to crack along the welds and so you end up just flexing the pedal instead of moving the master cylinder pushrod
also I'm sure you have done already but try bleeding the clutch hydraulics and ensure that you replenish the all fluid in the system and get any trapped air outI favour having a clear hose from the nipple to a jar 1/2 full of old fluid and with the nipple closed your assistant pushes the pedal up and down a few times, then holds it down whilst you then crack open the nipple and close it again whilst fluid is still flowing.the use of a pressure or vacuum bleeding system may also help here
Ah sorry I misunderstood what you meant
when you said clutch assembly I thought you meant the clutch friction disc and clamp plate fitted to the engine?
so in that case it sounds like the clutch is stuck on, so even tho the hydraulics are fine the plate remains attached to the flywheel.
so you can try leaving the clutch pedal pressed down overnight with a piece of wood or similar jammed between the pedal and seat base.If its no different in the morning then you're going to either have to remove the gearbox and prise the plate off manually or get a little brutal with it and start the car with it in gear.I'd go for the latter as if this doesn't work you'll have to take the box off anyway.If you do try try to start it in gear then make sure you've got plenty of room for manoeuvres and accelerate hard then try pumping the clutch. It'll probably go free with a bang and might feel a little rough for the next few gearchanges but keep changing gear and it should smooth out