KTM 400-660 LC4 1998-2005, Руководство по ремонту

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2-9E
Oil circuit (660 SMC from model 2004 on)
The oil pump
1
pumps the engine oil past the by-pass valve
2
through the oil filter
3
. After the oil filter an oil line branches off
to the jets 4 which spray engine oil on the piston pin bearing and the piston pins. The second oil line takes the main flow of oil
into the front pipe of the frame
5
, where the engine oil is cooled down. Afterwards the engine oil runs through the fine screen
filter
6
, which filters out even the finest impurities. The cleaned engine oil is pumped through the oil line and the clutch cover
into the crankshaft to the conrod bearing
7
and drips into the crankcase. An additional oil pump
8
sucks the engine oil out of
the crankcase and pumps it through the oil line
9
to the gear wheels of the 4th and 5th gear. Via the gear wheels, the engine oil
reaches the oil sump. The timing chain
bk
runs through the oil sump and transports the engine oil upwards to the cylinder head.
Through the bore hole bl the oil reaches the camshaft bm and the valves.
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