Ok..heres my problem..i replaced everything in my clutch set up..fly wheel..pressure plate, master and slave cylinder, hydrolic line...you name it..its new...anyways...it grinds when i try to shift into 1,2,rev...acts like something is holding it back when i shift into low and 4..but shifts into 3 fine...clutch has been bled..no air in the line...please tell me some things that could be causing my problem...ive dropped the transmission again and would like to get this fixed quickly as i need the truck for a long drive soon!..thank you!
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Re: transmission or clutch problem
Did you remove the packing blocks out of pressure plate? sometimes they have them in there for shipping, also did you get the right throut bearing, ithink they have a long and short one. Is clutch in backwards?
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this happens because the clutch plate is still spinning with the fly wheel. If you have just replaced the clutch it will be because the clutch plate is in the wrong way and the hub is hitting on the fly wheel bolts. If you haven't touched the clutch so far then you will have to check that the clutch slave cylinder is moving the throw out arm or if the pivot has broken off. IF that is ok then there is a case of the fly wheel and clutch plate contaminated with oil and sticking
together or lastly the lining of the clutch plate has become un secured (broken) and jamming on the flywheel/pressure plate. I am betting on the plate in the wrong way round.
it could be either the master cylinder or the slave cylinder,it could also be the clutch pressure plate check the master & slave cylinders first because if it's the pressure plate the gear box will have to be removed to replace the pressure plate, even if you are uncertain it is most likely cheaper to replace the master & slave cylinders than it would be to replace the pressure plate.....hope this helps......cheers.
Your clutch is both complicated and simple ( confused? That's because there are many types and variations of clutches) OK, I'll give you the simplest version. When you step on the clutch pedal, it is either attached to mechanical linkage, a cable, or a master cylinder that works the same as the one for your brakes. Jeeps use a master cylinder. The fluid pressure at the master cylinder pushes a slave cylinder on the bellhousing (just like the wheel cylinder on a drum brake...only difference is that a wheel cylinder has a piston on each end, a clutch slave has one piston) When you make the piston move, it pushes on a part called a clutch fork which is a simple lever...push on one end and the other end travels in the opposite direction. That lever is attached to a bearing (called a throwout bearing) that is positioned around the input shaft of the transmission, sliding back and forth on it. When the bearing is pushed against "fingers" on the clutch pressure plate assembly, it forces the actual plate to move back away from the clutch disc. The disc is normally held tightly sandwhiched between the plate and the flywheel by springs in the plate cover. Further clamping force is sometimes applied by counter weights on the "fingers" that react to engine rpm. (depending upon clutch design) So, when you step down on the pedal, you are moving the slave piston, the fork and the bearing which causes the clamping force on the disc to be relieved, allowing it to spin free and since it is connected to the input shaft of the transmission which is splined so the disc (also splined)can drive it. Bottom line is that when the disc is compressed between the flywheel and the pressure plate it turns the transmission gears, moving the car. When you push the clutch pedal down, it releases that pressure and no power goes into the transmission. Jeep also uses an alternative design that eliminated the clutch fork but essentially everything else still works the same.
The one item I would suspect is the through-out-bearing not completely
disengaging the pressure plate from the fly wheel. If the vehicle is in neutral
and you slowly depress the clutch and release it do hear a singing or whining
sound? Since you cannot adjust the clutch any more the through-out-bearing is
the component which moves the pressure plate from the fly wheel to stop the
power from the engine to the transmission. It is difficult to shift when the
engine is on because the fly wheel is still engaged and powering your transmission.
Possible solution! Daewoo Lanos 98-99
Had the same problem suddenly the clutch pedal went rock hard!
The clutch was around 3 months old.
Mechanic checked - Master, Slave, Clutch Components, and inside the box, all looked okay.
Turned out the top arm of the clutch pivot rod had twisted, replaced pivot rod around AU$100.
You need to remove the transmission (and transfer case if its 4 wheel or all wheel drive) to access the clutch assembly. Be prepared to replace the clutch disk, pressure plate, thrust bearing, throwout bearing, and in your case since its a Ford/Mazda the slave cylinder and plastic line to the master cylinder. A very big job for the do-it-yourself-er.
the mechanic should place or connect the clutch pedal spring to the clutch pedal .connect the push rod to the clutch pedal.then connect the push rod to the clutch master cylinder then refill the clutch master cylinder .by means of pressure tube connect the clutch slave cylinder .then connect the clutch slave cylinder to the push rod .And the push rod connect it to the clutch pork. the clutch pork connect to the spring. then connect the fly wheel , the clutch linning ,the clutch disk ,the release bearing,then the clutch pork to the transmission shaft . then connect the transmission assembly.And you can goon with your date.