Hisun HS200UTV - Page 143

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ENGINE
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1、CHECK
1). Checking the valve clearance
• Valve clearance
2). Checking the cylinder head cover
• cylinder head cover
Cracks/damage
Replace the cylinder head
cover and cylinder head as a set.
3). Checking the tappet covers
• Cylinder head cover ①
Cracks/damage Replace.
• Cylinder cover pad ②
NOTE:
When installing, new replacement washer
and apply wheel bearing grease LS.
4). Removing the screwdriver and slowly release
the timing chain tensioner rod.
NOTE:
Make sure that the timing chain tensioner rod
comes out of the timing chain tensioner housing
smoothly. If there is rough movement,
replace the timing chain tensioner.
5). Checking the cylinder head (1). Eliminate:
•
carbon deposits (from the combustion
chamber)
Use a rounded scraper.
NOTE:
Do not use a sharp instrument to avoid
damaging or scratching:
• spark plug threads
• valve seats
(2). Check:
• cylinder head
Scratches/damage
Replace the cylinde
r
ENGINE
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head cover and cylinder head as a set.
• cylinder head water jacket
Mineral deposits/rust Eliminate.
2、INSTALL
1). Installing the cylinder head
• cylinder head gasket
• cylinder head
• bolts (M9: 1 ~ 6, 38Nm)
• bolts (M6: 7, 10Nm)
NOTE:
• Tighten the bolts in the proper sequence.
• Follow the numerical order shown in the
illustration. Tighten the bolts in two stages.
• timing chain guide (exhaust side)
• timing chain tensioner
a. Lightly press the timing chain tensioner rod
into the timing chain tensioner housing by hand.
b. While pressing the timing chain tensioner rod,
wind it clockwise with a thin screwdriver until ①
it stops.
c. With the screwdriver still inserted into the
timing chain tensioner, install the timing chain
tensioner and gasket onto the cylinder block.
Then, tighten the timing chain tensioner bolts to
the specified torque.
WARNING:
A
lways use a new gasket.
NOTE:
The “UP” mark on the timing chain tensione
r
should face up.
Timing chain tensioner bolt (10 Nm)
d. Remove the screwdriver, make sure that the
timing chain tensioner rod releases, and
tighten the cap bolt to the specified torque.
Timing chain tensioner cap bolt (7 Nm)