Viscous Coupling - Rotating Sound

BULLETIN NUMBER:
4460004

DATE:
February 1, 2000

MODELS:
1998-1999 S70/V70 AWD, XC

TITLE:
Viscous coupling housing/viscous coupling, rotating sound

SECTION
4

GROUP
46

NO.
0004

YEAR
00

MONTH
02

BACKGROUND

A rotating sound may be heard from the viscous coupling/housing on some AWD/XC vehicles. The sound occurs most frequently at low speed when turning, and during warm weather at light to medium throttle.

This sound can be caused by movement of the outer bearing race in the torque tube housing. This service bulletin describes how to minimize this sound.





AFFECTED VEHICLES





MATERIALS








TOOLS

ROTATING SOUND FROM VISCOUS COUPLING HOUSING/VISCOUS COUPLING

1





Replacing the bearing, cleaning and bonding

To replace the bearing, see VADIS: Section 4, Removing, replacing and installing, 43 Gearbox,

Clean the mating surface of the bearing (viscous coupling housing side). Clean the corresponding surface in the viscous coupling housing. Clean the surfaces before pressing the new bearing into the viscous coupling housing Use Cleaner H, P/N 1161436-9.

Apply metal adhesive P/N 1161370 to the mating surface of the bearing (viscous coupling housing side) and to the corresponding surface in the viscous coupling housing.

Caution! Allow 6 hours for the metal adhesive to cure properly and to reach maximum strength before delivering vehicle to customer





WARRANTY STATEMENT: Claims may be submitted under the New Car Warranty when there is a documented customer complaint, using claim type 01.