The first thing the dealer will want to do is replace the unit for $3000 CAD. 99 percent of SC noise is the coupler. If there is backlash (looseness) of the pulley the coupler is worn (about $30 + oil and stuff). It is difficult to check the bearings with a loose coupler but easy when you take it apart to replace the coupler. If there is oil left in the SC, you probably don't have a problem with the bearings. These SC units are incredibly durable!! When I changed by coupler I had very little oil left in the unit itself and the bearings are still fine. With the unit apart you can spin the gear that the coupler attached to and check it for smooth movement.
1992 Bonneville SSEi
White, grey Leather interior.
Tinted windows and blackouts on headlights.
Custom high flow exhaust, Everything replaceable - DONE
300 000 kms original engine, tranny 2 rebuilds.
Playboy Bunnies Embossed in Tint. Oh Yah!
Ever Seen a Polar Bear in a Snow Storm?