Manual Shift Issue
#1
Instructor
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Manual Shift Issue
Hello,
I have a 1979 Coupe that I sometimes have trouble getting into first gear while the car is running and not moving but when the engine is off it shifts fine. ???
I have attempted to adjust it but it doesn't seemed to have helped.
Any ideas?
TIA
Paul
I have a 1979 Coupe that I sometimes have trouble getting into first gear while the car is running and not moving but when the engine is off it shifts fine. ???
I have attempted to adjust it but it doesn't seemed to have helped.
Any ideas?
TIA
Paul
#2
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Member Since: Aug 2006
Location: Jeffersonville Indiana 812-288-7103
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St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Worn linkage? I think I'd take a hard look at all of it and then do the factory adjustment.
Corvette Four Speed Shifter Linkage Adjustment Instructions 63-81
Corvette Four Speed Shifter Linkage Adjustment Instructions 63-81
#3
Racer
Try swapping out your tranny oil. to a top grade oil
#4
Melting Slicks
What's probably worn is the synchro in the trans. The inside diameter of the bronze synchro is cone shaped and as the shifter is pushed into gear, they wedge into the mating cone of the gear, slowing the gear to allow slider to align and make a smooth shift. They are a wear part and you are probably in need of an overhaul.
#5
Melting Slicks
Worn linkage? I think I'd take a hard look at all of it and then do the factory adjustment.
Corvette Four Speed Shifter Linkage Adjustment Instructions 63-81
Corvette Four Speed Shifter Linkage Adjustment Instructions 63-81
#8
Racer
I am having the same shifting problems and I only have 6,300 original miles so I doubt mine is wear and in need of a rebuild. Where did you get the tool or how do I make one?
#9
Le Mans Master
i used a drill bit.. i broke it on half and put a rubber elbow on it.... you can fit in right into the alignment hole in the shifter...
#11
Race Director
Sounds like the clutch is not fully disengaging. Does it help if you go from another forward gear into first ?
Have you done the 9 second spin down test ?
Have you done the 9 second spin down test ?