Repair of engines M102 Mercedes E-Class (W123)

Checking and adjusting clearances in the valve drive mechanism on M102.920 and M102.939 engines
The power unit is removed from the top of the vehicle. 1. Remove the air filter. 2. Disconnect the cooling system steam outlet hose from the cylinder head cover. 3....

Checking clearances in the valve drive mechanism on M102.980 and M102.982 engines
The principle of hydraulic valve clearance compensation On engines M 102.980 and M 102.982, the valve rocker arms have hydraulic tappets. Hydraulic valve lifter 1 -...

Complex operations without removing the engine from the car
The following work can be carried out on the engine without removing it from the vehicle: removal and maintenance of the cylinder head and camshaft(s); removing the oil...

Complex operations only on the engine removed from the vehicle
The following work is only possible after removing the engine from the vehicle: removing pistons and connecting rods; removing the crankshaft connecting rod bearings;...

Removal auxiliary units
Before disassembling the main engine units, remove auxiliary and mounted units from it. The sequence below may vary slightly due to different vehicle configurations....

Valve timing mechanism of 4-cylinder engines
Adjusting the valve timing 1 - crankshaft sprocket; 2 - camshaft sprocket; 3 - intermediate shaft sprocket; 4 - chain tensioner shoe Details of the valve timing...

Replacing the camshaft drive chain
The chain can be replaced from above the engine. However, when replacing it is recommended to remove the timing cover and check the condition of the dampers, shoe and...

Removal and installation the cylinder head
Note: Remove the cylinder head when the engine is cold Removal Removing the cylinder head of the M 102 engine Tightening order of cylinder head mounting bolts for M 102...

Disassembly and assembly of the cylinder head
Engine cylinder block parts M 102 1 - cylinder block; 2 - Crankshaft rear oil seal holder; 3 - timing cover; 4 - oil pan; 5 - front crankshaft oil seal; 6 - rear...

Removal the power unit
Powertrain suspension 1 - Engine mount brackets; 2 - suspension supports; 3 - gearbox mounting bracket; 4 - rear cross member; 5 - shock absorber (depending on the...

Installation of the power unit
The power unit is installed in the reverse order of removal, taking into account the following: 1. Tighten all threaded connections to the specified torque. 2. After...

Disassembling the engine
Engine cylinder block parts M 102 1 - cylinder block; 2 - Crankshaft rear oil seal holder; 3 - timing cover; 4 - oil pan; 5 - front crankshaft oil seal; 6 - rear...

Checking the technical condition and repairing the engine
Crank mechanism parts A - 4-cylinder engine; B - 6-cylinder engine; 1 - crankshaft; 2 - main bearing shells; 3 - thrust half rings for adjusting the axial stroke of the...

This section is available on: russian, bulgarian, belarusian, ukrainian, serbian, croatian, romanian, polish, slovak, hungarian

Share with friends:

Link in different formats to this section

TEXTHTMLBB Code

W210 (1996-2002)

W124 (1984-1995)