[jcclark]

I have a front wheel drive Civic that I put a new clutch and pressure
plate in 40K ago. For the last couple of months it has been getting
harder to shift. I also have to be going slower to downshift then I used
to be. I believe the clutch plate is still good, I replaced the
master cylinder and slave cylinder.
When I stop in reverse, it's really hard to shift to 1st, unless still rolling.
Could this be a pressure plate problem?

[Gringo]

Did you get all the air bleed from slave cyl ?

[willowbilly3]

I'm not familiar with those cars but you might also check the firewall where the m/c mounts. If it is stressing or flexing a little you would be loosing stroke. I have seen it on other makes.
Did you have the flywheel resurfaced? Did you use a crankshaft shim? Since the days of adjustable clutch linkage are long gone, that stuff becomes pretty critical. If it was assembled on the ragged edge of being out of specs, then a small amount of wear would put it over the edge so to speak.

[jcclark]

Originally Posted by Gringo

Did you get all the air bleed from slave cyl ?

Yes, I know to bleed those things a lot, they are notorious
for leaving a air bubble since the lines run uphill on the firewall.

[jcclark]

Originally Posted by willowbilly3

Did you have the flywheel resurfaced? Did you use a crankshaft shim? .

No, I just installed a clutch kit while I had the engine out.
What and how should I check things if I tear it down again?