Cylinder Head Bolts, Convert From Inner 12-Point to Polydrive

Cylinder head bolts, conversion from inner 12-point to Polydrive





Conversion of cylinder head bolts from inner 12-point to Polydrive bolts. Conversion is a running-change
A - Bolt with inner 12-point (old version). Remove and install using socket insert 3410
B - Bolt with Polydrive head (new version). Remove and install using Polydrive key 3452

Note: Before removing or installing the cylinder head bolts, check which version of the bolt is installed.





Special tool -B- is inserted in a socket insert A- for assembly.
A - 10 mm socket insert (locally available)
B - Polydrive key 3452

Cylinder head bolts tightening sequence and torques remain unchanged, Refer to Cylinder Head, Installing