when the car is in 1,2 or 3 its grinding and then going away...then coming back and going away. also when its in neutral. sometimes when i push in the clutch it goes away, but not all the time. i think some of the missy meet crew knows what im talking about, but its starting to get worse. any ideas? it could be the clutch, but i just replaced the clutch in oct. help please

Throwout bearing?

If you used an aftermarket clutch kit, did you discard thae bearing that came in the kit and use a dealer part? The metal sleeve on aftermarket t/o bearings grind our input shafts.

i used the aftermarket part. are you saying that i should have used the stock mitsu part?

YES!

Someone please correct me if I'm wrong, but I think that t/o bearing may be damaging your transmission.

well, the local DSM experts in montreal at camo tuning told me not to use any throwout bearing except the mitsu part, for the exact reason you gave Rob. I think its cheap insurance for 65 bucks

Aftermarket throwout bearings are metal sleeved, and once the grease on the shaft dries up, the metal on shaft it slides on peels off every time you push the clutch in. That means new bellhousing in a year. The oem one is plastic sleeved.

Or check your tranny fluid level.

I had the same problem, thought it was my master cyl over pushing my slave but turned out after a highway drive the problem went away.

Figured it wasnt enough fluid getting high up enough in the transmision at lower speeds.

What do you mean by grinding? It it more a rasping, rattling sound? Does it sound like a bad bearing?? Sorry dunno how else to put it, but once you hear it you know what it is.

I think it's an input shaft bearing, less likely throwout bearing (though metal sleeved t/o is bad for the reasons mentioned above). With input shaft bearing the noise should go away any time you disengage the clutch. Maybe it's just that your clutch doesn't completely disengage all the time, grabs just enough to keep the shaft spinning.

who ever shows up tomorrow will hope fully have a better idea @ yorkdale. THx j

You never asked me at the meet. But I thought I heard bearing noises when you were revving her. Then someone distracted me and I forgot to point it out. Did you figure it out?

i just bought a 91 and mine has the same noise that you're describing but its in all of the gears! It's only when there is any stress on the engine ie on gas, or after downshifting but since its only not making the sound when im coasting, the noise is all of the time.

Jason B, that's bearings, most likely intermediate or output shaft bearings. I know cause my tranny was making constant noise like that too. Then the diff broke a tooth and eventually the whole thing seized. I don't think it had anything to do with the bad bearings.

The tranny I rebuilt and is in there now had noise when decelerating (engine breaking). I replaced some of my bearings in the tranny, but obviously I missed one cause there's still a faint hiss coming from my tranny whenever the car's moving. Nothing like before though. I like my tranny again.

If you find somebody on the board who'll redo the bearings for you, and a few hundred bucks, you'll have a quiet tranny again. Not me though, sorry, no time

Thanks! so you think its the tranny and it really sounds like the tranny but my dad thinks its the clutch. Is that possible too?
Im having it go into a garage for a total assesment on the 23rd so hopefully i can get it fixed soon.

Nah clutch shouldn't make noise. If it's a rattly, raspy kinda noise, it's bearings. Bearings are a huge weak spot of these trannies(along with every other spot). I dunno what mitsu was smoking while designing these trannies, but it wasn't good sh!t.

The shop won't tell you anything most likely. They don't know sh!t. I've heard of people with the deceleration tranny noise who've been told by the tranny shop that that's normal engine braking noise

But try. If it's something else you're laughing. Bearings is pretty much the worst case, but unfortunately most likely.

Yeah i figured it might be the tranny. That sucks. It'll probably be a couple hundred bucks to fix? I gotta save every penny im broke now. Do you know of any other common problems on the early 90's Talon's? Cause mine has a few.
My temp gauge is screwed up cause on my way home from Hamilton it never quite made it up to the middle and most of the time it was stuck on the "C". Also my rear wiper doesn't work but i think that's just the motor. My radio turns on and functions, but i can't get any stations. Could the antenna be disconnected?

Yeah tranny rebuild is 500 bucks plus.

Temp-wise, that's not your gauge, that's your thermostat stuck open. Get a new one. Just don't get the fail-safe one.

Take out your radio and check that the antenna is plugged in. Black cable with jack.

i checked out all behind the radio and everything looks good. But while in under there i found a sony amp that is powering the speakers right now. I think maybe the radio isn't working becuase it isn't hooked up to any speakers. Im not sure of the wiring from the amp to the speakers and to the cassette deck but maybe that's the problem

Bahh Its the synchro's in your gear box guaranteed, a very time consuming repair as well as expensive(220per gear) thats my insight.

If the grinding is happening while it's in gear and neutral it's definitely not synchros. Synchros only come into play while shifting - not when you are already in gear.
Synchros are not expensive either. They are $17.00 per gear. The $220 mentioned is probably for each Hub and Sleeve which already come with their respective synchros.
As for being time consuming, it would be no more time consuming than replacing the bearings themselves. The tranny has to be cracked open anyways and the bearings need to be pressed off the shafts to get access to the synchros.

Like Steve said, its bearings that are most likely causing your noise.

If your bellhousing shaft is worn because of the T/O bearing, the entire bell housing does not need to be replaced - the shaft can be pressed out and be individually replaced.

As for cost, a basic tranny re & re from the car is about 400 bucks. Then there's the labour to rebuild it/ take it apart - about 300-500 bucks. And finally, there's the cost of parts which could range anywhere from 200 bucks all the way past a grand. The parts cost can (and will) add up very quickly.