Advice please - vibration issue
01-21-2015, 09:43 AM
#47
Rennlist Member
hi Glenn......did you get the TT out and rebuild with Constantines bearings?
I just received Greg's new drive shaft and his new stub shaft to marry up to the super bearings.
Only 3 months until driving weather
I just received Greg's new drive shaft and his new stub shaft to marry up to the super bearings.
Only 3 months until driving weather
08-15-2018, 10:06 AM
#49
Josh,
Have you checked the location of the front bearing in your torque tube to see if it migrated rearward? We have found in primarily the 5-speed torque tubes it is a common failure.
Anything more than approximately 15 inches back (should be around 10-12 inches from the front) and you start getting vibration issues.
Another failure we are finding is with run out problems which are exacerbated by the front necked down portion of the OE drive shaft. We've now changed the design of the our 5-speed drive shafts to correct these issues.
Good luck with the hunt!
Have you checked the location of the front bearing in your torque tube to see if it migrated rearward? We have found in primarily the 5-speed torque tubes it is a common failure.
Anything more than approximately 15 inches back (should be around 10-12 inches from the front) and you start getting vibration issues.
Another failure we are finding is with run out problems which are exacerbated by the front necked down portion of the OE drive shaft. We've now changed the design of the our 5-speed drive shafts to correct these issues.
Good luck with the hunt!
08-15-2018, 10:44 AM
#50
Rennlist Member
Josh,
Have you checked the location of the front bearing in your torque tube to see if it migrated rearward? We have found in primarily the 5-speed torque tubes it is a common failure.
Anything more than approximately 15 inches back (should be around 10-12 inches from the front) and you start getting vibration issues.
Another failure we are finding is with run out problems which are exacerbated by the front necked down portion of the OE drive shaft. We've now changed the design of the our 5-speed drive shafts to correct these issues.
Good luck with the hunt!
Have you checked the location of the front bearing in your torque tube to see if it migrated rearward? We have found in primarily the 5-speed torque tubes it is a common failure.
Anything more than approximately 15 inches back (should be around 10-12 inches from the front) and you start getting vibration issues.
Another failure we are finding is with run out problems which are exacerbated by the front necked down portion of the OE drive shaft. We've now changed the design of the our 5-speed drive shafts to correct these issues.
Good luck with the hunt!
08-15-2018, 01:37 PM
#51
Hi Josh,
Doubt the Super Bearing moved backward then, they don't move once installed.
Good luck with the search.
Doubt the Super Bearing moved backward then, they don't move once installed.
Good luck with the search.
08-15-2018, 04:11 PM
#52
Nordschleife Master
a potentially useful list
Does anyone have a list of potential vibration sources, ordered by probability of occurrence? That is, such as
- bad motor mounts
- bad transmission mounts
- bad crankshaft vibration damper
- imbalanced clutch
- migrated torque tube drive shaft bearings
- torque tube drive shaft bearings not supporting the drive shaft
- collapsed rubber springs torque tube vibration damper
- bent drive shaft
Etc?
- bad motor mounts
- bad transmission mounts
- bad crankshaft vibration damper
- imbalanced clutch
- migrated torque tube drive shaft bearings
- torque tube drive shaft bearings not supporting the drive shaft
- collapsed rubber springs torque tube vibration damper
- bent drive shaft
Etc?
