Ducati Monster 696 2009, Руководство пользователя

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N 4.4
64 Monster 696/696+ - M.Y. 2009 - edition 00
Engine
Renewal of the valve guides
To renew the valve guides ( 11 ) and (13), proceed as follows.
Heat up the cylinder head gradually and evenly up to 200 °C.
Drive out the valve guide using a suitable drift (see drawing).
Allow the cylinder head to cool down and check the condition of the seat.
Select the most suitable replacement valve guide to obtain an interference fit in the cylinder head bore of
0.022 to 0.051 mm;
replacement valve guides are supplied in O.D. oversizes of 0.03 , 0.06 and 0.09 mm complete with lock rings.
Heat up the cylinder head again and chill the new valve guide in dry ice.
Lubricate the seat and install the valve guide so that the stop ring is located against the head, using the drift previously used to
remove the old guide.
Allow the cylinder head to cool, then ream out the inside of the new valve guide.
13