Mechanics

TOYOTA MR2 CLUTCH PROBLEM

1991 Toyota MR2 • 60,000 miles

Hi there I have a problem with my 1991 toyota mr2 turbo. The car has been rebuilt recently and has about 60 000 kilometres on the engine and tranny. The problem is in the car when I press the clutch in any gear or in neutral, my rpms drop by about 200. Sometimes the car will even stall out due to the rpm drop. Whenever I press the clutch down, it also makes a weird grinding noise but the noise goes away when the car warms up. However when the car warms up, although the noise dissapears, the rpm drop is more severe and usually stalls out the car. Im hoping its just the clutch throw out bearing thats causing this although Id be happy if it were something easier. Im hoping its NOT crankwalk and my thrust washers have fallen off my crankshaft. Do you guys have any idea what it could be? The car runs perfect other then when you press the clutch in. Thanks alot for your time.
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Mr2boyyyy
February 7, 2013.




The throwout bearing is a possibility. However I would get the fuel pressure checked as you might have a failing pump as they get quiet when they get warmed up. You are correct to think that there is also a possible problem with the clucth. Did you replace the pressure plate as that is what it sounds like to me.

I bought the car with an ACT HD clutch kit recently installed (less then 10 000 kilometres on it). It might be the act throw out bearing dying on me since I heard after market tob will crap out faster then oem. I don't think there is a problem with fuel pump as that grinding clicking noise only appears when the clutch is depressed and goes away when I let off the clutch. Does this help narrow down what the problem is? And thanks for the quick reply. I really do appreciate it!

Tiny
Mr2boyyyy
Feb 8, 2013.
It is either the throwout bearing or the pressure plate might have broken some fingers or springs.

OK thanks, that's nice to hear. Do you think at all there's a chance I have crankwalk though? (Worn thrust bearings that have fallen out of the crankshaft)
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Tiny
Mr2boyyyy
Feb 8, 2013.
That is always possible. The next time you change your oil, look for small particles of metal in it. Get in good light and it usually settles to the bottom of the pan. If it is silver in coler the outer layer of bearing is worn. If it is brass or copper in color, this is the next layer of the bearing and you should be prepared for a rebuild soon.


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