1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Clutch and Tranny Question

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Old Nov 20, 2006 | 06:20 PM
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Question Clutch and Tranny Question

One of my friends and I were just finishing with his car and it wont go into gear. Checked and reblead clutch hydraulics and of coarse we installed the clutch right torqued and everything. But anyway can a 85 clutch assembly work with an 82 transmission because thats what the combination is? I know some stuff changed between those years so I was maybe thinking it might be something with the transmission being different. But I'm not sure. Oh yea one of my other friends kinda had the same problem when he bought his car..it wouldnt go into 5th gear so he took it back to the guy and the guy put a different transmission into it and it worked fine, so thats kinda why I think it might be the transmission. But still not sure so you guys or possibly girls tell me.

Peace..
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Old Nov 20, 2006 | 06:34 PM
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did you try to replace the slave cylinder?
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Old Nov 20, 2006 | 07:29 PM
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^^^^^ can you see the throwout bearing fork moving when you press down on the clutch? doe sit grind? does it go into gear with the engine off? need more info so that we can help you out.
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Old Nov 20, 2006 | 09:29 PM
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It goes into gear when the car is off, just doesnt go in when the car is on. Slave cylinder is new and same as the master. The clutch fork does move when the pedal is pressed.
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Old Nov 20, 2006 | 09:33 PM
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can you put it in 1 st gear with the clutch pressed down and start the car? does it move? how is the pilot bearing on the end of the e-shaft in the big nut of the flywheel?
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Old Nov 20, 2006 | 10:13 PM
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yea I can put it into 1st and start the car but makes a wierd noise so we shut it off, never left it on in gear long enough to see if it moved. The pilot bearing is new also.
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Old Nov 20, 2006 | 10:18 PM
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Check the fork and make sure it didin't come undone when you mated the trans to the engine. Maybe the fork came off it's holder or the throw bearing is not on properly. Does it make noise when the car is running and then you push in the clutch? Clutch may not be working properly. You'd have to check.
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Old Nov 20, 2006 | 10:18 PM
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Got to run. Let me know how things go. Good luck
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Old Nov 21, 2006 | 03:15 AM
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I wana say that the 79-82 clutch is different form the 83-85. In fact, i think the 83-89 clutch is the same. I think this may be your problem.
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Old Nov 21, 2006 | 03:15 AM
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Which flywheel did you use? The answer is no if you used the 82 fly.
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Old Nov 21, 2006 | 04:05 AM
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so the splines to the clutch disk on a 85 is different to the 82 transmission input shaft? Or is the diameter of the clutch disk different for that flywheel? What 's up with the 82 fly? Just trying to relearn about the rotary setup. Thanks, J.
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Old Nov 21, 2006 | 04:10 AM
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If this 85 clutch was installed on an 82 engine with the oem flywheel, it won't work. The later clutch and pp are 225 mm, earlier ones are 215 mm.
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Old Nov 21, 2006 | 10:01 AM
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Oh ok. But wouldn't the pressure plate sit on the flywheel awkwardly if that were the case? Could it still bolt up with the stock bolts? I'm assuming everything fit because he said he torqued the bolts down. Well I hope it all works out. Thanks again, J.
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Old Nov 21, 2006 | 07:46 PM
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Its an 85 flywheel and clutch. The engine and clutch and flywheel are all 85 and the rest of the car itself is 82 even the tranny is 82.
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Old Nov 21, 2006 | 09:07 PM
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You will know what went wrong after you repull the trans out. Was it a new clutch setup or used?
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Old Nov 21, 2006 | 09:51 PM
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It goes into gear when the car is off, just doesnt go in when the car is on.

Its an 85 flywheel and clutch. The engine and clutch and flywheel are all 85 and the rest of the car itself is 82 even the tranny is 82.


Absolutely screams pilot bearing.

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Old Nov 21, 2006 | 11:37 PM
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He said the pilot bearing is new.
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Old Nov 22, 2006 | 11:40 AM
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Lightbulb

Originally Posted by RXnos1200
He said the pilot bearing is new.
Never assume that because something is new that it is not defective or worse yet, not the correct part for the vehicle. Reference to clutch disc and pressure plate. Were they also new?
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Old Nov 22, 2006 | 12:06 PM
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Well he now has time off of school so I'm gonna get him to go out and take off his tranny and find out if anything is put on wrong. And I'll update later when we get it checked.
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Old Nov 22, 2006 | 02:36 PM
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Still need to know. Is the clutch disc and pressure plate brand new parts?
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Old Nov 22, 2006 | 07:26 PM
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From: so cal
Originally Posted by rx7doctor
Never assume that because something is new that it is not defective or worse yet, not the correct part for the vehicle. Reference to clutch disc and pressure plate. Were they also new?

^^^^^ Duly noted. You are right. " Assumption is the mother of all f''' ups. " I did hear this in a movie once.
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Old Nov 23, 2006 | 03:48 AM
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I've had problems with sticky aftermarket clutches but not with OEM clutches from mazdatrix.
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Old Nov 23, 2006 | 03:21 PM
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Brand new clutch assembly.
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Old Nov 23, 2006 | 05:53 PM
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I hoped you saved the old pressure plate for comparison. What happened to me once is that I bought a new complete clutch kit. Matched up everything visually for bolt pattern, size, etc... Good to go right? Wrong!. Put everything in, it all fit properly. Took it off the jack stands, put in reverse and backed it up. No problem, until the next day when it was time to go to work. Pulled onto the street and started to accelerate, car would not go more then 10mph.

Finally took it apart. found that the height of the pressure plate was different not allowing the full engagement of the disc. I took that trans out 3 times in the same week. It got down to about 20 minutes to completly disassemble everything.
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Old Nov 23, 2006 | 05:57 PM
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Adjust the clutch pedal's push rod before assuming its the clutch,
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