Cylinder Head Disassembly And Reassembly/Head Gasket Replacement; Preliminary Operations; Cylinder Head Disassembly; Cylinder Head Assembly - Husqvarna TC449 Workshop Manual

Cylinder head disassembly and reassembly/head gasket replacement

H01752
ENGINE DISASSEMBLY/REASSEMBLY

Preliminary operations

Spark plug recess ignition coil disassembly
Spark plug disassembly
Removing cylinder head cover
Spark plug recess disassembly
Chain tensioner disassembly
Camshaft removal
Slider disassembly

Cylinder head disassembly

Disassemble the following parts:
Nuts (1)
Screws (2)
Nuts (3)
Cylinder head (4)
Cylinder head gasket (5)
Guide sleeves (6)

Cylinder head assembly

• Clean sealing surfaces.
• Apply reference pins (6), and a new head gasket (5).
• Pull timing chain through the recess.
• Fit nuts (3, 1), and cylinder head screws (2) without tightening them.
• Secure nuts (3) working crossways, then secure nuts (1).
Tightening torque figures
Cylinder head with cylinder on engine
Nut, M10 - 10.9 Grease thread
Nut, M6 - 10.9 Grease thread
• Tighten screws (2).
Tightening torque figures
Cylinder head on cylinder
M8 x 30 Grease thread
F1.44
Pre-tightening torque, 35 Nm
Final tightening torque, 50 Nm
11 Nm
15 Nm
1 edition (08-2010) _Rev. 11-2010
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