Quick fix for stiff Clutch pedal MGF2002

If there are no leaks, it sounds like master cylinder is faulty (fluid is by passing seals) because it's a new cylinder It doesn't mean it's not faulty

Start the engine and select a gear leaving the parking brake firmly applied. Take a quick look underneath to check if a drive shaft or propellor shaft is turning. If it is the cause of the problem is fairly obvious...

If nothing visible is turning the fault is either the clutch or gearbox and as the gearbox must be removed to inspect the clutch, at this stage it isn't necessary to know any more...

to get to the clutch you have to remove the gearbox the clutch is between motor and gearbox

It really sound like you are going to need a new clutch. If the slave or master cylinders were bad they would feel loose, a stiff pedal usually means something came apart in the pressure plate.

no simple way you need to remove the gearbox ,which includes the front suspension as well to get the drive shafts out .big job and not a quick fix

Stiff pedal on a Honda is always a cable problem unless you have an hydraulic clutch. No amount of adjustment will cure the problem. Replacement of the cable is the only option. In the event of an hydraulic clutch the problem may be a bit more serious as the only point where binding occurs is inside the bellhousing and the only way to get at it is removing the engine and/or gearbox.

I don't know the clutch operating system on Subaru vehicles as I don't see them in my workshop. We mostly work on off-road vehicles.
Nevertheless, the basics always remain the same.
1. If the clutch operating system is not hydraulic, but work with a cable, unhook the cable from the clutch fork and test the ease of movement. Clutch cables can sieze up due to rust and/or lack of lubrication.
2. If the clutch operating system is hydraulic, bleed the system. If it is easy to bleed, you can take for granted that the master cylinder and pedal box bushes are ok. Master cylinders can also become stiff due to a bent pushrod.
3. Undo the slave cylinder from the bellhousing and move the slave cylinder pushrod backwards and forwards with the aid of a pair of soft grip pliers. Some cloth on the pushrod will do just fine. The outcome of the test is rather obvious.
4. The cluch fork may be stiff in it's bushes. To find out, you will have to pull the clutch , usually by removing the gearbox, sometimes it is easier to remove the engine (an old Series II Land Rover with modified suspension and 3 Litre Ford V6 engine fitted is currently in my workshop and it is impossible to pull the gearbox with engine still in vehicle).
5. Your pressure plate may also be the culprit. To test, the gearbox must come out. Specifications on operating pressure is available from clutch manufacturers. A testing rig can be made up with a sturdy drillpress, a tension scale and a little math to compensate for leverage.
6. The clutch plate splines may be worn, or siezed up or even distorted. With the gearbox out, you should be able to move the clutch plate freely on the pilot shaft of the gearbox, with hardly any lateral movement (wobble).
7. I once found a bunched-up carpet behind the clutch pedal which caused a very hard clutch action.
8. This is definately not a full list of possible causes, but could point you in the right direction. Remember not to take anything for granted. The most obvious tend to be the hardest to spot.
Happy hunting.

A few things can cause your symptoms. Check the slave cylinder, see if the res. is full, any leaks, or if the pedal changes if you pump it. If it checks out then you may need a new pilot bearing, throw-out bearing, and/or clutch assembly.

sounds like your pressure plate has given up u will need to replace it sorry no quick fix

I have been having similar problems. The clutch is slipping as thats how you get the variable gears when in full auto, but this is where the problem comes from, some garages (auto gearbox specialists) are now able to fix it. Do not go to Audi as all they do is replace the gearbox (very expensive). There is no quick fix though! Sorry for the bad news!!