WÄRTSILÄ PAAE051728, Instruction Manual

Page: 165 / 394

10. Engine Block with Bearings, Oil Sump and
Cylinder Liner
10.1 Description
Data and dimensions
Material: Nodular cast iron
Weight (dry): 9100 kg (6L32)
12 000 kg (8L32)
13 600 kg (9L32)
12 000 kg (12V32)
16 000 kg (16V32)
18 000 kg (18V32)
20 000 kg (20V34SG)
The engine block is cast in one piece. The main water and
lubricating oil distributing pipes and the charge air receiver are
integrated in the engine block. The main bearing caps, which
support the underslung crankshaft, are clamped by hydraulically
tensioned screws, two from below and two horizontally. The
bearing shells are axially guided by lugs to provide correct assem-
bly.
A combined flywheel/thrust bearing is located at the driving
end. The flywheel bearing shells are of the same type as the main
bearings. The four thrust washers guide the crankshaft axially.
The camshaft bearing bushes are fitted in housings directly
machined in the engine block.
The cylinder liners are made of special alloyed cast iron. To
eliminate the risk of bore polishing, the liner is provided with an
anti-polishing ring at the upper part.
The crankcase covers, as well as other covers, tighten against
the engine block by rubber sealing’s and four screws each. On one
side of the engine the crankcase covers are equipped with safety
valves which relieve the over pressure in case of a crankcase
explosion. The crankcase is furthermore provided with a vent
pipe. This pipe should be conducted away from the engine room.
10.2 Oil sump
Data and dimensions
Material: Steel plates
Weight: 930 kg (6L32)
1200 kg (8L32)
1400 kg (9L32)
1300kg (12V32)
1700 kg (16V32)
1900 kg (18V32)
2100 kg (20V34SG)
The light, welded oil sump is attached to the engine block and is sealed
off by a rubber sealing. Suction pipes to the lube oil pump and if used,
for the separator, as well as for the main lube oil distributing pipe for
crankshaft bearings, are incorporated in the oil sump.
From the main distributing pipe the lube oil is led up to the
main bearing through a hydraulic jack, by means of which the
bearing cap can be lowered and lifted, e.g. when inspecting the
bearings.
An oil dipstick is located in the engine block. The oil dipstick
indicates the maximum and minimum limits between which the
oil level may vary. Keep the oil level near the max. mark and
never allow the level to go below the min. mark. The limits apply
to the oil level in a running engine. One side of the dipstick is
graduated in centimeter. This scale can be used when checking
the lubricating oil consumption. Note! In marine installations;
Check the oil level only when the ship has a same trim.
32-200150 Engine Block with Bearings, Oil Sump and Cylinder Liner 10
WÄRTSILÄ 32/34SG 10 - 1