![[Datsun 1200 encyclopedia]](/wiki/upload/wiki.png)
| Revision as of 06:33, 11 January 2012 ddgonzal (Talk | contribs) <- Previous diff |
Current revision ddgonzal (Talk | contribs) |
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| Line 7: | Line 7: | ||
| ** Bad synchro | ** Bad synchro | ||
| ** Bad gear, perhaps chipped | ** Bad gear, perhaps chipped | ||
| - | |||
| = Slips Out of Gear = | = Slips Out of Gear = | ||
| Line 13: | Line 12: | ||
| * Shifter mechanism | * Shifter mechanism | ||
| * chipped gear | * chipped gear | ||
| - | |||
| = Noisy = | = Noisy = | ||
| Line 21: | Line 19: | ||
| ** Transmission input shaft or counter gear | ** Transmission input shaft or counter gear | ||
| * Noise only when clutch pedal depressed | * Noise only when clutch pedal depressed | ||
| - | ** [[Throwout bearing]] is bad | + | ** [[Throwout Bearing]] is bad |
| * Noise at any gear, at certain road speed | * Noise at any gear, at certain road speed | ||
| ** [[Differential]] | ** [[Differential]] | ||
| * Vibration in any gear, at certain higher speed | * Vibration in any gear, at certain higher speed | ||
| - | ** [[Propeller shaft]] | + | ** [[Propeller Shaft]] |
| * Noise in a particular gear over a range of speed. No noise in lower or higher gear | * Noise in a particular gear over a range of speed. No noise in lower or higher gear | ||
| ** Transmission | ** Transmission | ||
| - | |||
| == Potential Causes == | == Potential Causes == | ||
| Line 38: | Line 35: | ||
| * Bad bearings or bushing (knock at low speed) | * Bad bearings or bushing (knock at low speed) | ||
| * Clunk - worn splines | * Clunk - worn splines | ||
| + | |||
| + | = Vibrations = | ||
| + | See main article: [[Vibration]] | ||
| [[Category:Diagnoses and Corrections]] | [[Category:Diagnoses and Corrections]] | ||
| [[Category:Transmission]] | [[Category:Transmission]] | ||
Current revision
Please add to these Transmission Diagnoses and Corrections based on your experience.
Contents |
[edit]
Difficulty Switching Gears
- First gear won't go in if car rolling
- By design: 1st gear is not sychro
- Noise, trouble shifting into one specific gear
- Bad synchro
- Bad gear, perhaps chipped
[edit]
Slips Out of Gear
Although rarely occuring this is one of the weak points of the 56- and 60- transmission designs.
- Shifter mechanism
- chipped gear
[edit]
Noisy
[edit]
Component Determination
Try to determine if it is a transmission or some other component:
- Clutch pedal down, noise goes away. Clutch pedal up, noise starts
- Transmission input shaft or counter gear
- Noise only when clutch pedal depressed
- Throwout Bearing is bad
- Noise at any gear, at certain road speed
- Vibration in any gear, at certain higher speed
- Noise in a particular gear over a range of speed. No noise in lower or higher gear
- Transmission
[edit]
Potential Causes
- Low on gearbox oil
- Leak
- Not filled with enough oil
- Filled too full
- Worn bearings (whine at high speed)
- Bad bearings or bushing (knock at low speed)
- Clunk - worn splines
[edit]
Vibrations
See main article: Vibration