|
Floobydust
Veteran
Date registered: Mar 2014
Location: Massachusetts, USA
Vehicle(s): 1995 E320 Cabrio, 2003 G500, 2000 SL500, 1980 TR8
Posts: 284
| Transmission output shaft axial play
I was under the G today trying to sort out an exhaust heat shield rattle (found it) so I decided to check the play at various points in the drive line. As many of you may know, my G has had a drive line vibration since, well, forever, that nobody seems to be able to find. I hand checked the axial play on the output of the transmission (at the flange where the homeokinetic shaft connects) and there is a very visible axial movement of the transmission flange. I estimate it to be about 1 -2 mm. Does anyone have the specification for the transmission output shaft axial play for a MBUSA 2003 G? I think it is the 722.6 box. Note that I am not talking about the normal axial play that occurs within CV joints of the homeokinetic shaft itself.
Thanks in advance!
|
|
| |
|
bram_r
Expert
Date registered: Apr 2007
Location: the Netherlands
Vehicle(s): 1984 MB 280GE, 1982 MB 300GD, 1986 Subaru XT 4WD
Posts: 1659
| Re: Transmission output shaft axial play
If you remove the shortshaft, maybe check if the locknut on the transmission output flange is still at the correct torque?
I don't have any 722.6 info. Maybe 4x4abc.com got manuals for this kind of transmission? |
|
| |
|
Floobydust
Veteran
Date registered: Mar 2014
Location: Massachusetts, USA
Vehicle(s): 1995 E320 Cabrio, 2003 G500, 2000 SL500, 1980 TR8
Posts: 284
| RE: Transmission output shaft axial play
Well, I lucked into finding an aftermarket rebuilders guide for the 722.6 transmission on one of the W124 websites (http://www.w124performance.com/docs/mb/transmission/722.6/trans_722.6_ATSG_2004.pdf). It seems to cover both MB and Chrysler applications of the 722.6 and it gives the output shaft axial end play specification as between 0.3 to 0.5 mm (0.012 - 0.020”). Knowing this I broke out my magnetic dial gauge, crawled under the G and measured my end play. Even though it looked bigger, it measures at 0.016" or 0.40 mm - exactly in the middle of the spec. If this document is correct, then I think things might be okay with the output shaft on my G. Still stumped about the original of the drive line vibrations. . . . |
|
| |
|
bram_r
Expert
Date registered: Apr 2007
Location: the Netherlands
Vehicle(s): 1984 MB 280GE, 1982 MB 300GD, 1986 Subaru XT 4WD
Posts: 1659
| RE: Transmission output shaft axial play
Floobydust - 2/25/2017 10:21 PM
Well, I lucked into finding an aftermarket rebuilders guide for the 722.6 transmission on one of the W124 websites (http://www.w124performance.com/docs/mb/transmission/722.6/trans_722.6_ATSG_2004.pdf). It seems to cover both MB and Chrysler applications of the 722.6 and it gives the output shaft axial end play specification as between 0.3 to 0.5 mm (0.012 - 0.020”). Knowing this I broke out my magnetic dial gauge, crawled under the G and measured my end play. Even though it looked bigger, it measures at 0.016" or 0.40 mm - exactly in the middle of the spec. If this document is correct, then I think things might be okay with the output shaft on my G. Still stumped about the original of the drive line vibrations. . . .
Thanks for the update.
Hunting driveline vibrations can be difficult.
Best to do is trying to isolate the issue by removing parts. Try running with front driveshaft removed, or with rear driveshaft removed. You need to lock your center diff then.
Try swapping different tireset etc etc.
On a slope you can even let the car running down, with tc in neutral to exclude the engine/transmission/shortshaft from the equation.
Good luck!
gr. bram |
|
| |
|
NHDave
Extreme Veteran
Date registered: Dec 2013
Location: Seacoast NH.
Vehicle(s): 2004 AMG
Posts: 465
| Re: Transmission output shaft axial play
Watching this closely..great input bram_r
|
|
| |
|
NHDave
Extreme Veteran
Date registered: Dec 2013
Location: Seacoast NH.
Vehicle(s): 2004 AMG
Posts: 465
| Re: Transmission output shaft axial play
If anyone has the document number for transmission assembly, I might be able to find the limits of output flange play- Via WIS.
Edited by NHDave 2/27/2017 8:34 PM
|
|
| |
