Removal & Disassembly (633CSi & 733i)
Carefully remove tensioner plug. Remove spring and piston assembly. Remove piston, check ball and metering disc from piston sleeve. See Figure. Clean all parts thoroughly and blow out with compressed air.
Carefully remove tensioner plug. Remove spring and piston assembly. Remove piston, check ball and metering disc from piston sleeve. See Figure. Clean all parts thoroughly and blow out with compressed air.