Cylinder - Pressure Testing - Husqvarna 140 Workshop Manual

7.24 Cylinder – pressure testing
1
Remove:
• cylinder cover
• carburettor
• spark plug
2
Mount cover plate 504 63 93-01 (see figure 63).
3
Loosen the screws on the muffler and press the
rubber sheet 502 54 11-02 between the muffler and
cylinder. Tighten the top two muffler screws (see
figure 64).
4
Fit the pressure testing spark plug 503 84 40-02
and connect the pressure testing tool 531 03 06-23
(see figure 64).
5
Pump the pressure up to 80 kPa (0.8 bar). Wait
30 seconds. The pressure should not be less than
60 kPa (0.6 bar). Remove the cover plates from
the silencer and carburettor, tighten the bolts to the
specified torque. Remove the pressure test nipple
503 84 40-02 and refit the spark plug.
WARNING!
After pressure testing the cylinder,
check that the inlet manifold is
seated correctly, otherwise the saw
may be damaged.
Fig 63
Fig 64
Fig 65
Repair instructions
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