Engine lubrication, oil cooler,  M110

Additional installation of oil pressure relief valve in main oil duct

 

 
18—020 Additional installation of oil pressure relief valve in main oil duct

 
Tightening torques
Nm
Pulley bolts M 8
35
Pressure relief valve
40
Plug (5)
50
Spare parts

 
Pressure relief valve
114 180 02 15
Plug
110 184 00 56
Plug1)
110 184 01 56

 
) only for models with fuel evaporation system, which have connection at plug.

 
Note

 
In the event of repairs or when installing an oil pump drive, part no. 110 050 02 06, install a 5 bar pressure relief valve, part no. 114 118 02 15 into main oil duct front in addition to pressure relief valve in oil pump. For this purpose, use a new closing plug.
On vehicles with fuel evaporation control system with­out charcoal canister, install line of evaporation control system from cylinder crankcase to cylinder head.

 
Standard installation 5 bar pressure relief valve in main oil duct
Engine                    starting engine end no.
110.921 – 10-   008705
– 12-   035819
110.922- 10-   015494
– 12-   022259
110.923 – 10 –   starting begin of series
–  12 —   starting begin of series
110.931 – 10-   001058
–  12-   000126

 
18.2-020/1 F3

 

 

 
110.932 —
10-
002153

 

 
—
12-
000350

 

 
110.981 –
10-
009994

 

 
_
12-
020700

 

 
110.982 —
10-
000109

 

 
—
12-
000285

 

 
110.983 —
10-
011397

 

 
—
12-
028536

 

 
110.984

 
starting begin
of
series
110.985

 
starting begin
of
series
110.986

 
starting begin
of
series
110.991 –
10-
000065

 

 
—
12-
000030

 

 
110.992

 
starting begin
of
series
110.993-
10-
000043

 

 

 
12-
000010

 

 

 
All exchange engines starting unit no. 464130 are provided with 5 bar pressure relief valve in main oil duct.

 
Removal
m110 - 0746-1.jpg
1 Remove radiator (20-420).
2 Remove fan clutch.
3 Remove pulley and vibration damper (03-340).
4 Remove plug (1).

 
5   Unscrew plug (2) for oil bore with a lubricated
8 mm internal socket wrench and pull out carefully.
6   For protection insert a long piece of welding wire in oil bore and remove the press fit aluminium seal (3) from countersink of oil bore with a screwdriver.
m110 - 0746-2.jpg
118 -K) 386

 
18.2-020/2 F3

 

 

 
Attention!
Do not use old closing plug (1), 16 mm long, together with pressure relief valve (4).
When installing a 5 bar pressure relief valve, use screw connection (5), part no. 110 184 0056 (or part no. 110 184 0156 with tank breather on vehicles for (aus) , (T) ,(usa)), since otherwise the pressure relief valve will not operate.
m110 - 0747-1.jpg
118-10386

 
For subsequent installation of a 5 bar pressure relief valve into the following vehicle models, connect line of fuel evaporation control system to cylinder head (arrow):
m110 - 0747-2.jpg
Model years
1977.
(aus) starting 10.1974 up to start of model year
<T) starting 1.1973 up to start of model year 1976. (@) starting model year 1972 to 1974.
For this purpose, use conversion set, part no. 114 010 26 99. Also refer to repair instructions engine 110, combustion III, programmed repairs, group 47.

 
m110 - 0747-3.jpg

 
Installation

 
7    Install pressure relief valve (4) and torque to 40 Nm.
8   Coat threads of new plug (5) with a sealing com­pound, install and torque to 50 Nm.
9   Install vibration damper and pulley.

 
18.2-020/3 F3

 

 

 
10    Install fan clutch.
11    Install and tighten belt.
12    Install radiator housing and radiator.
13   Add coolant.
14    Run engine, check oil pressure and for leaks.

 
18.2-020/4 F2