Designed to give improved access to the camshaft fixing bolts on the
Mercedes Benz M651 engines.
The M651 engines have their cam chains mounted at the back of the
engine which can make the access to the L/H threaded cam sprocket fixing
bolts difficult with stndard E14 spanners.
Especially useful on the Mercedes Benz Sprinter where the cam pulley
access is restricted.
Recommended when replacing the cam chain on M651 Mercedes engines.