Mercedes-Benz 603 Service Manual page 115

(17, 18, 19) . . . . . . . . . . . . .
Cylinder head bolts
Cylinder head (20)
After assembling engine
Tightening torques and rotation angles (tightening in stages)
Cylinder head bolts with 12-point
Allen head (engine cold)
M 8 Allen bolts in area of timing chain case (reference value)
Exhaust pipe on exhaust manifold
Side exhaust support
01.10 - 4194
unbolt in opposite order of torquing diagram,
check length of cylinder head bolts and replace
if necessary. Bolt on according to torquing
diagram, socket 601 589 00 10 00
(items 17, 20, 23 - 28).
Note
Observe different lengths of bolts and tightening
specifications.
remove together with cylinder head gasket (21),
install (items 18, 19, 21, 22).
Note
Clean parting surfaces on cylinder head and
check for cracks. Install cylinder head with new
gasket.
check cooling and engine oil systems for
leakage (item 38).
Initial tightening torque
Rotation angle
Interval for setting
Rotation angle
Nm
15
Stage 1
Stage 2 35
Stage 3
10 min
Stage 4
25
25
25
EXIT