Crankcase venting
General
Because some of the products of combustion find their
way past pistons and piston rings (“blow by”) down to
the crankcase, the latter must be ventilated.
The engine can be delivered with one of two types of
crank case ventilation:
•
Open crankcase ventilation
•
Closed crankcase ventilation
Open crankcase ventilation
P0006037
The engine is equipped with two oil traps, one located
in the upper timing gear cover (
1
), and the other in the
valve cover (
2
) and an external pipe (
3
) to lead away
crankcase gasses.
There is an oil trap in the timing gear cover designed
as a labyrinth with a connection (
4
) to the crankcase
in front of the center of the intermediate gear.
Intermediate gear rotation creates a relatively oil-free
area.
There is an oil trap on the inside of the valve cover –
a cast channel (
5
) with three drains (
6
) for the sepa-
rated oil.
20-0 Engine Information, General
7748841 06-2010
97
Содержание TAD1343GE
Страница 2: ......
Страница 4: ......
Страница 121: ...P0010531 P0010586 P0010587 21 0 Engine Complete General 7748841 06 2010 117 ...
Страница 304: ......
Страница 307: ...References to Service Bulletins Group No Date Refers to 303 ...
Страница 308: ......
Страница 310: ...7748841 English 06 2010 ...