Hisun HS700UTV-4 - Page 156

ENGINE
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2). Checking the camshaft
• cam lobes
Pitting/scratches/blue discoloration Replace
• camshaft journal
Wear/damage
Replace
• Measure the external diameter of camshaft
journal with micrometer.
Out of specification
Replace.
• small holes on camshaft sprocket
• rotor “I” mark
Out of alignment
3). Checking the camshaft sprocket
• camshaft sprocket
Wear/damage
Replace the camshaft
sprocket and timing chain as a set.
(a)1/4 of a tooth
(b)Correct
① Timing chain
② Sprocket
4). Checking the decompression system
• decompression system
Check while the camshaft sprocket is installed
on the camshaft.
a. Check that the decompressor lever pin ①
projects from the camshaft.
b. Check that the decompressor cam moves ②
smoothly.
2、INSTALL
1). Installing the rocker arms
• rocker arms ①
• rocker arm shafts ②
1NOTE:
• The thread hole (a) of the rocker arm shaft
must face to the outside.
• After installation, make sure that the thread
hole (a) of the rocker arm shaft is positioned
correctly, as shown in the illustration.