XC90 AWD L6-2.9L Turbo VIN 91 B6294T (2004)
DESCRIPTION:
XC90 T6 cars use a Chain Gear to transfer torque from the transmission to the angle gear. Oil leakage from the chain gear can be resolved by replacing
seals and gaskets. The chain gear itself does not normally need to be replaced.
The majority of chain gear leaks are caused because the car has been disassembled for some other reason. The two chain gear seals which come into
contact with the right front axle are easily damaged when the axle is removed and installed. The snap ring on the end of the axle can knock the spring off
the seal and/or damage the seal lip. Whenever the axle is removed or installed for any reason (for example, when the transmission is being replaced)
these two seals should be checked carefully and replaced if necessary. When installing the axle, insert it as straight as possible and be careful not to
damage the two seals it passes through (8636015 & 8636016).
SERVICE:
Using the instructions in VIDA, remove the chain gear & angle gear as one assembly; then separate the two components. See the drawing below for the
location of each chain gear seal and what type of leakage would result from a failure of that seal.
RE-SEALING THE CHAIN GEAR:
1.
Remove seal 8636015 with a screwdriver or seal removal tool. Do not damage the needle bearing that sits just below the seal. Lubricate the lip of
the new seal with oil 1161745 and install it using 9991801 & 9997063 or a similar tool measuring about 53mm (2.08").
