TORQUE CONVERTER
| CAUTION | Before installing transmission check the installation dimension of the torque converter. See TORQUE CONVERTER, INSTALLING . |
- Observe rules of cleanliness when working on the automatic transmission. See «RULES OF CLEANLINESS WHEN WORKING ON AUTOMATIC TRANSMISSIONS»(ref-172517-S26637654112005022800000) .
- General repair instructions. See «GENERAL REPAIR INSTRUCTIONS»(ref-172517-S19575296532005022800000) .
- Lubricate seals with ATF or Vaseline. Other lubricants may lead to problems in the hydraulic controls of the transmission.
TORQUE CONVERTER, CHECKING
Check hub -arrow- of converter for grooves. (Scheme 279)
Scheme 279
Note. A faulty or damaged torque converter must be replaced.
TORQUE CONVERTER, INSTALLING
Insert torque converter through seal to first stop on transmission shaft.
Push converter by hand into bell housing while turning converter until notches on converter hub engage with corresponding driver notches of pump wheel and converter slides noticeably toward inside.
Tightening Drive Pinion Nut And Adjusting Friction Torque
Thread in two hex head bolts M8 x 30 -A-. see scheme 46
When nut is tightened, final drive must be supported (e.g. using VAG 1359/2 universal mount together with VAG 1383A transmission hoist).
Note. Increase torque slowly and measure friction torque multiple times. If the specified friction torque is surpassed, replace spacer sleeve and repeat adjustment! Any spacer sleeve that has been pressed together too far one time must be replaced.
Measuring Friction Torque
With torque gauge, 0 to 600 Ncm, locally available. (Scheme 281)
Scheme 280
Note. If necessary use 3/4" to 1/2" reducing piece.
Adjust to following friction torque. see scheme 61
Scheme 281
Measuring Friction Torque (Check Measurement, Ring Gear)
- Drive pinion removed
- Differential installed with shims "S1*" and "S2*"
Torque gauge 0 to 600 Ncm -A- installed on differential. see scheme 80
Scheme 282
Read friction torque.
Friction torque specified values. See RING GEAR FRICTION TORQUE table.
| Bearing Application | INCH Lbs. (Ncm) |
|---|---|
| New Bearing | 13-27 (150-300) |
| Run-In Bearing (1) | 2.6-5.3 (30-60) |
| (1) At least 50 km. | |
| (1) | At least 50 km. |
RING GEAR FRICTION TORQUE
- Tapered roller bearings for differential are low-friction bearings. Therefore friction torque can only be used for check measurement in a limited way. A correct adjustment is only possible by determining the total thickness "S total ".
- Do not grease new tapered roller bearings additionally for friction torque measurement. The bearings are already greased with a special oil from the factory.
- For a new adjustment of the gear set, the drive pinion adjustment must now be performed with checks. See «DRIVE PINION, ADJUSTING»(ref-172517-S14116261582005030100000) .