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For what it's worth, I still think you have a broken/fractured driveshaft in the torque tube, or a broken drive flange at the torque converter. I'm sure you'll let us know.
^^^^^Me too!*****
Or an axle problem that they are not seeing/understanding.
I've never heard or seen a transmission failure as described.
Semi-retired, as of Feb 1, 2023.
The days of free technical advice are over.
Free consultations will no longer be available.
Will still be in the shop, isolated and exclusively working on project cars, developmental work and products, engines and transmissions.
Have fun with your 928's people!
At this point, baring something wrong with the valve body after the rebuild, correcting any possible failure mode requires removing the transmission to disassemble and inspect.
At this point, baring something wrong with the valve body after the rebuild, correcting any possible failure mode requires removing the transmission to disassemble and inspect.
I think it's the next step ... Remove of transmission.
What are the MB parts numbers for front pump and torque converter ? (GTS 1995).
How to check a failure of primary pump and TC ?
UPDATE :
Front pump : 1402700097 (Porsche and MB reference)
TC : 7222500602 or 7222500802 or 7222500902 (Porsche reference). No MB reference ? Which one ?
NEW UPDATE :
My transmission number is 3004074. Regarding the PET, my TC is 7222500602.
7222500602 is twice as expensive than 7222500902. Why ? Where is the difference ?
It’s easier to drop the rear suspension first then drop the Tt and transaxle as a unit
just remove the Bowden cable housing , anchor bolt at the front bell before you drop the TT
put a strap underneath the trans and it will hold it while the crossmember is removed installed
strap go to the sway bar
It’s easier to drop the rear suspension first then drop the Tt and transaxle as a unit
just remove the Bowden cable housing , anchor bolt at the front bell before you drop the TT
put a strap underneath the trans and it will hold it while the crossmember is removed installed
strap go to the sway bar
You’re right 😉
For us, no problem to remove the transmission. It’s easy with a car lift and a good WSM 😀
Now we have to find the root cause of my failure ... all seem to be good. We have only very small stripes inside the pump. See pictures.
Few days ago, we have checked all parts of transmission. All pinions are like new.
K1 friction inner discs are used with burnt spots on steel discs.
B3 friction inner discs are dead.
Next step. Change of primary pump (140 270 009 7), K1 friction inner discs (126 272 062 5) and K1 steel discs, B3 friction inner discs (126 272 092 5), gaskets and seals (126 270 530 0).
The problem is to find K1 steel discs. They are no longer available in Mercedes / Porsche .
Where to find them ? I need three steel discs of 3.5 mm (126 272 502 6) and one disc of 4.0 mm (126 272 512 6).
02-24-2021, 07:59 PM
