Shifting Problems into 2nd, 4th and 6th
03-02-2012 | 09:47 AM
#32
Seared
Rennlist Member
Rennlist Member
Joined: Jul 2005
Posts: 16,785
Likes: 418
From: Ellicott City, MD
+1. I tried to make that point in post #20...
Tugging on the shift linkage from below will not tell you what's going on inside the shift lever mechanism - there are various bushings & guides that WILL fail. I've replaced these components for numerous 993 owners over the years.
Andreas
Tugging on the shift linkage from below will not tell you what's going on inside the shift lever mechanism - there are various bushings & guides that WILL fail. I've replaced these components for numerous 993 owners over the years.
Andreas
03-02-2012 | 10:05 AM
#33
Thread Starter
Burning Brakes
Joined: Jul 2009
Posts: 1,064
Likes: 3
From: Vista, CA
Andreas and NP993,
Yes, the shift linkage has been 100% ruled out of the equation. I disconnected it completely at the rag joint.
If I grab the input shaft of the linkage, twist and push in I can feel the resistance in there. If I twist and pull out everything feels good. I have tried this in every gear from underneath the car.
That was my first thought a well, especially considering that my shift linkage is a home made contraption... I really wish that was the problem.
Thanks!
Yes, the shift linkage has been 100% ruled out of the equation. I disconnected it completely at the rag joint.
If I grab the input shaft of the linkage, twist and push in I can feel the resistance in there. If I twist and pull out everything feels good. I have tried this in every gear from underneath the car.
That was my first thought a well, especially considering that my shift linkage is a home made contraption... I really wish that was the problem.
Thanks!
03-04-2012 | 01:39 PM
#34
Thread Starter
Burning Brakes
Joined: Jul 2009
Posts: 1,064
Likes: 3
From: Vista, CA
Shift Eccentric Bushing?
Could someone please explain to me what the symptoms of a misadjusted Shift Eccentric Bushing would be?
I read in the manual that you should adjust this until all of the gears can be shifted into easily with no notchiness, but I am not sure if this is an all or nothing type of adjustemnt... meaning if this was out of adjustment would it affect ALL the gears or could it possibly affect the movement of the shift selector rod in/out movement indiviudally? I will probably re-jack up the car later this afternoon and play with this a bit.
As an update the transmission is re-filled with Redline 75-90 transmission oil (non-NS this time). I took it for a drive yesterday and 2nd gear seams better now, 4th and 6th are still pretty tough to get in/out of. Other than the difficult shifting the transmission sounded and worked fine but I did not push it at all.
Could someone please explain to me what the symptoms of a misadjusted Shift Eccentric Bushing would be?
I read in the manual that you should adjust this until all of the gears can be shifted into easily with no notchiness, but I am not sure if this is an all or nothing type of adjustemnt... meaning if this was out of adjustment would it affect ALL the gears or could it possibly affect the movement of the shift selector rod in/out movement indiviudally? I will probably re-jack up the car later this afternoon and play with this a bit.
As an update the transmission is re-filled with Redline 75-90 transmission oil (non-NS this time). I took it for a drive yesterday and 2nd gear seams better now, 4th and 6th are still pretty tough to get in/out of. Other than the difficult shifting the transmission sounded and worked fine but I did not push it at all.
03-04-2012 | 07:48 PM
#35
Thread Starter
Burning Brakes
Joined: Jul 2009
Posts: 1,064
Likes: 3
From: Vista, CA
Here is a picture of the shift eccentric. I can't find much information on what it actually does online... it seems to be a magical adjustment that most people don't touch. In the parts diagram it just looks like a screw.
According to the instructions you loosen screws A and then slowly spin B until the shifter shifts smoothly. Sounds simple enough but I want to know what it does before I start messing with it.
Thanks again!
According to the instructions you loosen screws A and then slowly spin B until the shifter shifts smoothly. Sounds simple enough but I want to know what it does before I start messing with it.
Thanks again!
