Husqvarna TE511 - Piston Disassembly; Cylinder Check

F1.55
H01754
H01895
ENGINE DISASSEMBLY/REASSEMBLY
1
st
edition (08-2010) _Rev. 11-2010
Piston disassembly
• Watch stop rings correct position: ring opening shall be pointing up (arrow).
• Disassemble the following parts:
- Left and right stop rings (1).
- Piston pin (2)
- Piston (3)
Cylinder check
Check
• Check cylinder liner and sealing surface for damages.
• Measure bore using an inside micrometer gauge in three points (A, B, C).
Technical specications
Cylinder bore diameter
Tolerance group 1
New, 40 mm from
upper edge
450 cc
98.000
+0.012
mm
- 0
480 cc
101.000
+0.012
mm
- 0
Cylinder bore diameter
Tolerance group 2
New, 40 mm from
upper edge
450 cc
98.012
+0.012
mm
- 0
480 cc
101.012
+0.012
mm
- 0
Result: Damaged cylinder or outside tolerance values
Action:
• Replace cylinder.