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Machine Translated by Google
MP3 530 hpe
Check valve tightness
- Carry out a visual inspection of the valve sealing surfaces.
DANGER
DO NOT MIX THE INSTALLATION POSITION OF THE VALVES (RIGHT - LEFT).
- If the sealing surface of the valve is interrupted or
irregular at one or more points, the valve must be
replaced.
- Insert the valves into the cylinder head.
- Check the inlet and outlet valves alternately.
- The valves can be opened by simply pressing with a fin
Hold the ger firmly, pour petrol into the nozzles and
check that no petrol comes out of the sealing surface
from the valves.
Check wear of the valve seats
- Clean the seats and valves of any combustion residues.
- Check that the operating limits are within the values specified in the "Technical data" section.
- If the impression on the valve seat is wider than the specified value, the valve seat must be cut with a 45° milling cutter
processed and then ground out.
- If there is excessive wear or damage, the cylinder head must be replaced.
Checking the valves
Check that the operating limits of the valves are within the values specified in the "Technical
Data" . If the measured values are not correct, the part in question must be replaced
be replaced.
Motor
AGAINST - 189
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