13
15
Premix Coolant
in 5 Litre
Can.
Coolan t is
‘Ethylene Glycol’
(Type JIS K 2234-
94, Class 2)
Coolant is
recommended to
prevent Corrosion of
Engine & Radiator. I
t also broadens
th e Operatin g
Temperature range
by Lowering the
coolant freezing
point & by raising
it’s boiling point.
NOTE
This Premix Coolant Do-Not require, any addition
OR mixing of Raw Water. Coolant is to be used,
directly from Coolant Can (Ready To Use)
Coolant recovery Bottle is to be filled externally,
with Coolant. Radiator is to be filled slowly, upto
bottom of Fill Neck.
Check Coolant Level Daily, before starting Gen-set.
CAUTION
Do-not add cold coolant to hot engine.
Engine castings can be damaged . Allow engine
0
to cool below 50
C, before adding Coolant.
Do-Not remove Cap, Radiator, from hot engine.
0
Allow engine to cool below 50 C, before adding
Coolant. Failure to do so, can result in personal
injury from steamy coolant.
Do-Not use sealing additives, to stop leaks in the
cooling system. This can result in coolant system
plugging & inadequate coolant flow, causing,
engine to Over heat.
Operating procedure
Again operate the engine for 5 mins. with the water
temperature above 80°C
Shut the engine and drain the cooling system.
If the water drained is still dirty, the system must
be flushed again until the water is clean.
TIGHTENING OF CYLINDER HEAD NUTS
After every remounting of cylinder head, the
cylinder head nuts should be tightened in the
sequence as shown in the figure. Clean and oil
threads on the collared nuts as well as on the
cylinder head studs prior to figment. Tighten evenly
in three stages till the maximum torque is
achieved. A special socket must be used for
tightening the nuts below the rocker arm shaft.
Then adjust intake and exhaust valve clearances
to specified valve.
Run the engine for approximately one hour,
thereafter, retighten cylinder head nuts and recheck
valve clearances. Repeat the above procedure
after 5 to 16 hrs. of operating evertime a cylinder
head is refitted. Always fit a new cylinder head
gasket and ensure that the marking “TOP” is
towards the cylinder head side.
For removing the cylinder head, loosen nuts in the
reverse order of tightening sequence.
13
15
Cylinder head nut tightening sequence
Workshop Manual
S3.8 Engine
A030K288 (Issue 2)
01-2010