Are torque tube failures common in 5 speed manual transmission cars?
11-12-2014, 11:44 AM
#4
Instructor
Thread Starter
I'm not so knowledgeable so I'm not sure. Obviously there were more automatics sold so the failure number would be higher. I guess what I'm asking is the chance of the TT failure the same in a manual?
11-12-2014, 12:49 PM
#6
Former Sponsor
Interestingly enough, for all that is written about torque tube bearing failures, problems are very rare.
As the rubber pieces that hold the bearings in place age, migration of the bearings and the counterweight gets more common.
The huge majority of the cars I work on still have the original torque tubes.
I go along with Jake's idea. If the car has a gob of mileage and the engine or transmission is out, on an automatic car, I will encourage the customer to have the bearings replaced.
Because the manual transmission torque tubes are relatively easy to get in and out and shaft deterioration is not as much of a factor, I do not preemptively have those torque tubes rebuilt, very often.
As the rubber pieces that hold the bearings in place age, migration of the bearings and the counterweight gets more common.
The huge majority of the cars I work on still have the original torque tubes.
I go along with Jake's idea. If the car has a gob of mileage and the engine or transmission is out, on an automatic car, I will encourage the customer to have the bearings replaced.
Because the manual transmission torque tubes are relatively easy to get in and out and shaft deterioration is not as much of a factor, I do not preemptively have those torque tubes rebuilt, very often.
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11-12-2014, 02:15 PM
#9
Instructor
Thread Starter
From what I have read once the TT fails it is catastrophic in that the engine will seize and be totally damaged? So the TT should be replaced as a preemptive measure?
11-12-2014, 02:20 PM
#10
Drifting
From what I have read once the TT fails it is catastrophic in that the engine will seize and be totally damaged? So the TT should be replaced as a preemptive measure?
11-12-2014, 03:05 PM
#11
Burning Brakes
Two very different animals. And yes, thrust bearing failure occurs, primarily, with automatics because of forward migration of the driveshaft causing pre-loading of the flexplate which pushs the crankshaft forward against the thrust bearing and can/will cause catastrophic engine damage.
11-12-2014, 04:01 PM
#12
I think you may be confusing TT with TB (thrust bearing).
Two very different animals. And yes, thrust bearing failure occurs, primarily, with automatics because of forward migration of the driveshaft causing pre-loading of the flexplate which pushs the crankshaft forward against the thrust bearing and can/will cause catastrophic engine damage.
Two very different animals. And yes, thrust bearing failure occurs, primarily, with automatics because of forward migration of the driveshaft causing pre-loading of the flexplate which pushs the crankshaft forward against the thrust bearing and can/will cause catastrophic engine damage.
11-12-2014, 04:25 PM
#13
Rennlist Member
From what I'm reading there are three (3) different topics being discuses in this thread.
One:
TT "bearing" failure, yes they do fail and yes age and mileage is a factor, age due to how the car was driven and stored (wet/winter and moisture, seen many rusted out and old dry bearings, old dry up rubber too).
Two:
TT "drive shaft" failure, happend when the '87 and newer Drive shaft has too much HP applied.
Three:
Thrust Bearing Failire, yes, happens on '87 and up Autos when "Drive Shaft flexing" causes the Flex-plate collar to migrate off the drive shaft placing too much pressure on the Engine Crank shaft.
One:
TT "bearing" failure, yes they do fail and yes age and mileage is a factor, age due to how the car was driven and stored (wet/winter and moisture, seen many rusted out and old dry bearings, old dry up rubber too).
Two:
TT "drive shaft" failure, happend when the '87 and newer Drive shaft has too much HP applied.
Three:
Thrust Bearing Failire, yes, happens on '87 and up Autos when "Drive Shaft flexing" causes the Flex-plate collar to migrate off the drive shaft placing too much pressure on the Engine Crank shaft.
11-12-2014, 05:59 PM
#14
Electron Wrangler
Lifetime Rennlist
Member
Lifetime Rennlist
Member
From what I'm reading there are three (3) different topics being discuses in this thread.
One:
TT "bearing" failure, yes they do fail and yes age and mileage is a factor, age due to how the car was driven and stored (wet/winter and moisture, seen many rusted out and old dry bearings, old dry up rubber too).
Two:
TT "drive shaft" failure, happend when the '87 and newer Drive shaft has too much HP applied.
Three:
Thrust Bearing Failire, yes, happens on '87 and up Autos when "Drive Shaft flexing" causes the Flex-plate collar to migrate off the drive shaft placing too much pressure on the Engine Crank shaft.
One:
TT "bearing" failure, yes they do fail and yes age and mileage is a factor, age due to how the car was driven and stored (wet/winter and moisture, seen many rusted out and old dry bearings, old dry up rubber too).
Two:
TT "drive shaft" failure, happend when the '87 and newer Drive shaft has too much HP applied.
Three:
Thrust Bearing Failire, yes, happens on '87 and up Autos when "Drive Shaft flexing" causes the Flex-plate collar to migrate off the drive shaft placing too much pressure on the Engine Crank shaft.
Alan
11-12-2014, 08:48 PM
#15
Rennlist Member
