Manual Tranny help
jbbcd
03-15-2008, 03:21 PM
Hello,
1997 Geo
Manual Trans... quit working within 2-3 days notice. Had absolutly no advance warning. Car ran and shifted w/ no problems before Day 1.
Dosent seem like clutch went bad, The trany never slippped.
Day 1: tranny started to shift hard into all gears.
Day 2: Clutch pedal starting to feel hard & a bit jerky l can also hear small a grinding and or vibrating now.
Day 3: Clutch pedal very hard & does nothing to make clutch work & car will not shift into gear. Need to force in to gear with out depressing clutch to make it home.
All sympotoms stared within 100 miles.
Day 4: found this site! can anyone give me advice? I'd like to fix it myself to save some cash.
Question: From the symptoms above, can you tell me what causes this problem with the tranny or clutch??
I have never run across these symtoms before.
By the way, the nut at the end of the clutch arm is all the way to the end already. I have tried to adjust it forward & backward as much as possible still no help.
Thanks
John
[email protected]
1997 Geo
Manual Trans... quit working within 2-3 days notice. Had absolutly no advance warning. Car ran and shifted w/ no problems before Day 1.
Dosent seem like clutch went bad, The trany never slippped.
Day 1: tranny started to shift hard into all gears.
Day 2: Clutch pedal starting to feel hard & a bit jerky l can also hear small a grinding and or vibrating now.
Day 3: Clutch pedal very hard & does nothing to make clutch work & car will not shift into gear. Need to force in to gear with out depressing clutch to make it home.
All sympotoms stared within 100 miles.
Day 4: found this site! can anyone give me advice? I'd like to fix it myself to save some cash.
Question: From the symptoms above, can you tell me what causes this problem with the tranny or clutch??
I have never run across these symtoms before.
By the way, the nut at the end of the clutch arm is all the way to the end already. I have tried to adjust it forward & backward as much as possible still no help.
Thanks
John
[email protected]
91Caprice9c1
03-15-2008, 10:10 PM
Welcome to the Forum jbb.
This definitely sounds like a clutch problem. Pressure plates can fail in this manner, sometimes grooves wear deep enough into the fingers of the pressure plate to disable the throw-out action and sometimes they just seize up.
Disconnect the clutch cable from the clutch arm on the transmission and make sure the clutch pedal and cable operate freely, just to rule out any minor failures.
If everything moves freely you will need to pull the transmission out to replace the clutch.
Take your flywheel off and have it machined, acquire a clutch kit, throw it back together and off you go.
The key to all of this is making sure you adjust your clutch properly. With a little bit of play, but not so much that your clutch never full disengages.
-----------------------------------
Transmission removal instructions:
Raise and support vehicle on jack stands. Drain gear oil.
1. Disconnect the negative battery cable.
2. Disconnect the backup lamp switch electrical connector.
3. Disconnect the clutch release cable from the arm.
4. Disconnect negative battery cable from transmission.
5. Remove engine harness and speedometer cable from transmission.
6. Disconnect electrical connections to starter and remove starter motor and starter plate.
7. Remove the axles from the car.
8. Remove the flywheel cover.
9. Remove the shift shafts from the transmission.
10. Support the engine with cardboard or cloth between a floor jack and the oil pan.
11. Remove the rear mount through bolt and nut, and then the two nuts underneath and pull the mount out.
12. Remove the two trans mount nuts and three bolts and pull out the trans mount.
12. Remove the three transmission to engine bolts and one transmission to engine nut.
13. From above, pull the transmission away from the engine and set it down on the ground. You can use a jack if you like, the transmission weighs ~75lbs.
I think thats about everything
-MechanicMatt
This definitely sounds like a clutch problem. Pressure plates can fail in this manner, sometimes grooves wear deep enough into the fingers of the pressure plate to disable the throw-out action and sometimes they just seize up.
Disconnect the clutch cable from the clutch arm on the transmission and make sure the clutch pedal and cable operate freely, just to rule out any minor failures.
If everything moves freely you will need to pull the transmission out to replace the clutch.
Take your flywheel off and have it machined, acquire a clutch kit, throw it back together and off you go.
The key to all of this is making sure you adjust your clutch properly. With a little bit of play, but not so much that your clutch never full disengages.
-----------------------------------
Transmission removal instructions:
Raise and support vehicle on jack stands. Drain gear oil.
1. Disconnect the negative battery cable.
2. Disconnect the backup lamp switch electrical connector.
3. Disconnect the clutch release cable from the arm.
4. Disconnect negative battery cable from transmission.
5. Remove engine harness and speedometer cable from transmission.
6. Disconnect electrical connections to starter and remove starter motor and starter plate.
7. Remove the axles from the car.
8. Remove the flywheel cover.
9. Remove the shift shafts from the transmission.
10. Support the engine with cardboard or cloth between a floor jack and the oil pan.
11. Remove the rear mount through bolt and nut, and then the two nuts underneath and pull the mount out.
12. Remove the two trans mount nuts and three bolts and pull out the trans mount.
12. Remove the three transmission to engine bolts and one transmission to engine nut.
13. From above, pull the transmission away from the engine and set it down on the ground. You can use a jack if you like, the transmission weighs ~75lbs.
I think thats about everything
-MechanicMatt
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