amshaft Alignment Engine Timing Tool Chain Fixture Tool Kit Compatible for Mercedes Benz M271 
 
 
Tool Number 1
For holding chain securely on sprocket while winding in a new chain.
Tool Number 2
For locking camshafts and setting camshafts in basic position also holds camshafts securely while loosening and tightening sprocket bolts.
Tool Number 3
For installing blanking plug back into crankcase cover after removing chain tensioner.
Tool Number 4
For release of oil filled chain tensioner releasing tension on timing chain.