4-6
Repair manual KTM LC8
Art.-Nr
. 3.206.009-E
Camshafts cylinder front
– Check and note down the valve clearance before you dismount the
camshafts.
Valve clearance:
intake 0.125 - 0.175 mm
exhaust 0.225 - 0.275 mm
– Loosen the bolts on the camshaft bearing bridge from the front
cylinder and carefully remove the camshaft bearing bridge.
!
CAUTION
!
W
HEN TIGHTENING THE BOLTS OF THE CAMSHAFT BEARING BRIDGE
,
MAKE SURE THAT
THE VALVES ARE NOT ACTUATED BY THE CAMSHAFT
(
SEE ILLUSTRATION
),
OTHERWISE
THE BEARING BRIDGE WILL BREAK
.
– Remove the camshafts from the cylinder head without tilting.
Oil pressure switch
– Loosen the oil pressure switch
1
and unscrew. Discard sealing
washer.
Chain tensioner cylinder front
– Remove the bolt on the chain tensioner
2
.
NOTE: measure the preload on the chain tensioner element before
dismounting:
– Apply the chain tensioner bolt to the chain tensioner element without
compressing the spring.
– Measure the distance between the sealing washer and the cylinder
head.
The measured value should be between 6 mm and 11 mm. If the value
is lower, the tensioning rail could be worn or the timing chain excessively
elongated. If it is higher, the engine was turned to TDC against the
running direction.
– Remove the sealing washer.
– Pull out the chain tensioner element
3
.
NOTE: the housing and the tensioning piston on the chain tensioner
element are compression molded. If they fall apart during disassembly,
the chain tensionerelement must be replaced.
1
2
3