Crankshaft Wear Check; Connecting Rod Wear Check; Crankshaft Replacement - Husqvarna TC 449 2011 I.E. Workshop Manual

H01929
H01930
Workshop Manual Ed. 03-2012
ENGINE DISASSEMBLY/REASSEMBLY
TC 449 2011/2012 I.E.
TE 449 - 511 2011/2012 I.E.
TXC 449 - 511 2011/2012 I.E.
SMR 449 2011 I.E.
SMR 511 2011/2012 I.E.

Crankshaft wear check

• Check crankshaft support pin (arrows).
Result: Support pins are damaged or worn.
Action:
• Replace crankshaft with connecting rod.

Connecting rod wear check

• Check connecting rod for damages and wear
• Measure connecting rod bearing clearance. Lock crankshaft in vertical posi-
tion and, using a dial gauge, read the max. possible bearing clearance (A).
Technical specifications
Connecting rod axial
clearance
Result: Damaged connecting rod or bearing clearance outside tolerance val-
ues.
Action:
• Replace crankshaft with connecting rod.

Crankshaft replacement

• Always replace crankshaft as any microcracks could not be detected.
F1.78
0.80...0.90 mm