Installation - MZ 125 SX Repair Manual

Cylinder Head
Installation
0
,
1.
2.
Replacing the chain wheel and/or camshaft.
Always position the chain wheel with the writing facing the
screw.
The curved side of the curved washer must always be
toward the screw head.
Insert the thrust washer, screw on the chain wheel.
Secure screw using LOCTITE 243.
Tightening torque:
screw
6.7.5 Installation
1. Slide the sleeves onto both right stud bolts.
2. Insert the timing chain rail.
In case of sand casting cylinders (blank no. 37-42.050) use
O-rings (compare section 6.7.3).
3. Position the new head seal.
Always use a new head seal and a new base seal.
4. Carefully position the complete cylinder head.
Do not damage the tension and guide rails!
5. Screw on the screws and nuts as follows:
• Lubricate the threads of the M8 tie rod (numbers 1 - 4) and
the two M6 hexagon recessed cap screws. (numbers 3a and
1a) and the support surfaces with MoS
2 .
• Screw on the M6 screws and M8 nuts and tighten by hand.
• Screw on the M8 nuts in the order 3 - 2 ·4· 1 (see sketch)
with 22 Nm torque.
• Turn every nut at an angle of 80° +10" in the same order.
Never turn the nuts back!
• Tighten both M6 screws with 10+
2
Nm.
6. Lubricate the camshaft bearings.
7. Insert the camshafts.
Intake camshaft: Designation
(E)
Exhaust camshaft: Designation (A)
MZ 125 SXlSM Repair Manual
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