OK, I've looked at loads of posts on here and elsewhere that are along similar lines but not really describes my problem exactly. So here goes...
About a month ago, I suddenly got a grinding noise and struggled to get into gear sometimes. I could hear the clutch whirring for some weeks beforehand, so I assumed it had 'gone'. So I had the clutch changed. Not sure if my MX5 had a new clutch ever before, if not then 140,000 miles isn't too bad.
After picking up the car, it was ok going home - job done I thought. But then the grinding came back.
The noise basically happens when my clutch is depressed, either in gear or in neutral. It sounds like 2 pieces of rough metal being rubbed together.
I took it to Halfords Autocentre on my travels one day, and the guy said he would check gearbox oil first. I emptied and replaced it - there was plenty in there but it was black and flamin' stank. So although it didn't solve the problem, a good job done.
Next I read about slave cylinders and clutch fluid, so I replaced the fluid. That was also black, so a good job done anyway. But again, clutch is grinding/grating when pedal is pressed in. I managed to replace clutch fluid so the slave must be ok....
So what on earth is it? I've been finding out about thrust/spiggot bearings, this is obviously the next port of call but it's such a big job to do for a DIY mechanic. I'm tempted to get the clutch guy to sort it, the clutch is guaranteed for 18000 miles and he wants me to return periodically for checks anyway so if there's an issue it looks like he'll sort it.
Anyone got any ideas?
1995 1.8iS in Classic Red, with modest modifications such as Eunos seats with speakers, and a nice and growly induction kit...