Cleaning, Inspection - Husqvarna 326R Workshop Manual

Cylinder and piston
Remove the gudgeon pin circlips.
Dismantle the piston.
505 38 17-05

Cleaning, inspection

After dismantling, clean the individual components:
1. Scrape carbon deposits from the top of the piston.
2. Scrape carbon deposits from the cylinder's combustion chamber.
3. Scrape carbon deposits from the cylinder's exhaust port.
NOTE!
Scrape carefully with not too sharp a tool so as not to damage the soft
aluminium parts.
4. Wash all the components.
5. Inspect the different components for damage and wear.
Check the piston and cylinder for seizure damage and wear.
Also see the "Analysis and actions" section.
Check the gudgeon pin.
– If it has blued, it must be replaced.
– If the piston moves too easily both the piston and the gudgeon pin must be replaced.
Check the needle bearing. If it is discoloured or damaged, it must be replaced.
Check the circlips. If they exhibit cracks or are discoloured (caused by overheating),
they must be replaced.
Remove the gudgeon pin circlips.
Use small flat nose pliers and remove
the gudgeon pin circlips.
TIP!
Keep your thumb over the circlip to
prevent it from flying out.
Press out the gudgeon pin from the
piston using the punch 505 38 17-05.
If the pin is too tight, carefully warm the
piston.
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