- 16 -
CHECKS AND SERVICE
CHECKING AND REPLACEMENT OF PULLEY BELT
Check the belt carefully, both for wear and
cracks. Any sign of such, then the belt must
be replaced. Loosen the alternator mounting
bolts so that the belt can be removed. Dry
the pulley grooves before fitting the new belt.
Tension the belt so that the belt can only be
pressed down 5 mm (3/16") between the
pulleys. After a few hours running, recheck
belt tensioning and adjust if necessary.
RETIGHTENING CYLINDER HEAD BOLTS
Retighten each bolt
with a torque wrench
before
starting a new engine or an overhauled engine for
the first time, and after 20 hours of operation. The
valve clearance should always be checked after the
bolts have been retightened. Sequence for
tightening the bolts is shown in the figure opposite.
Torques:
Nos. 1, 2, 3 and 4 are torqued to 11 kpm (79 lbft)
Nos. 5 and 6 are torqued to 4.5 kpm (32 lbft)
CHECKING OF COOLING SYSTEM
The cooling system is working normally when the temp gauge is registering within the
green scale and the alarm (if fitted) is silent. Too high water temperature (red scale,
siren is sounding) can be due to the following: blocked water intake, defective
impeller or the flange in the sea water pump, faulty thermostat or temp sender.
Be
observant for water ingress
when working with the cooling system.
Содержание MD 11C/110S
Страница 1: ......
Страница 34: ... 32 ENGINE COMPONENT GUIDE MD17C Reverse gear MSB For position explanation refer to page 31 ...
Страница 36: ... 34 ENGINE COMPONENT GUIDE MD17C 110S For position explanation refer to page 33 ...
Страница 42: ... 40 NOTES ...
Страница 44: ... 42 Publ No 3167 July 1976 AB VOLVO PENTA S 405 08 GOTHENBURG SWEDEN ...