8-cylinder V-engine Mercedes S-Class (W116)

Removal and installation the engine
Removal the engine It is recommended to remove the engine and gearbox together as a single power unit and then disconnect the engine from the gearbox. The following work...

Cylinder head: removal and installation
Before removing the cylinder head, pay attention to the following: Remove the cylinder head only when the engine is cold. The cylinder head for the V8 engines is a...

Disassembly and assembly of the engine
Disassembly Before starting work, thoroughly clean all external surfaces of the engine. Cover all openings with clean rags to prevent foreign objects from getting into...

Disassembling the cylinder head
The description below assumes replacement of the cylinder head. If only valve repair is assumed, additional work must be provided. It is assumed that the cylinder head...

Cylinder head repair
Check all cylinder head parts for wear. Thoroughly clean the cylinder head separating surfaces from gasket residues. Use the following instructions when checking and...

Camshaft Drive Cover: Removal and Installation
The camshaft drive cover is secured to the front of the cylinder block. The camshaft drive covers of the 116 and 117 engines differ in numbers and height. The covers of...

Pistons and connecting rods — removal
After removing the covers and liners, remove the pistons and connecting rods from the cylinder block using a hammer handle. Before performing work, pay attention to the...

Pistons and Connecting Rods — Cylinder Measurements
To measure cylinders, a bore gauge with a dial indicator is required. The measurement is made in the longitudinal and transverse directions along three belts located 10...

Checking pistons and connecting rods
Inspect all parts; if there are nicks, scratches or wear, the parts must be replaced. Use a feeler gauge to measure the gaps between the piston rings and the...

Assembly of pistons and connecting rods
Before installation, check the top surface of the piston head (if new pistons are installed). The piston diameter and group number must match the numbers on the cylinder...

Installing pistons and connecting rods
Lubricate the cylinder surfaces. The connecting rods must match the cylinder number. The markings on the connecting rod and connecting rod cap must be located one under...

Cylinder block
After final disassembly, thoroughly clean the cylinder block, remove foreign objects from cavities and oil channels. Pay special attention to completely removing...

Crankshaft and drive plates
It is useful to know the following information: The crankshaft rotates in five main bearings. The main bearing caps are secured with four studs and nuts. The three...

Checking the crankshaft parts
Check the crankshaft for damage and measure the main and connecting rod journals accurately. The main and connecting rod journals can be reground four times. After...

Installing the crankshaft
If the crankshaft axial clearance exceeds the permissible values during the check, it is necessary to install liners of the middle main bearing of increased width. If...

Box drive discs
Fig. 38 shows the drive disks details. As can be seen from the figure, two disks are used. The disks are of different thicknesses (1.0 and 1.5 mm) and differ in diameter...

Damper and crankshaft pulley
All engines have a damper installed at the front end of the crankshaft. Fig. 42 shows the arrangement of the components. The crankshaft sprocket (10) and bushing (6) are...

Rear Crankshaft Oil Seal and Cover
The rear cover connects the main oil channel with the channels in the cylinder heads and is installed on the cylinder block with a sealant. The rear oil seal can be...

Front crankshaft oil seal
The front crankshaft oil seal is installed in the camshaft drive cover and can be replaced on the engine installed in the vehicle if an oil leak is detected. First of...

Camshaft drive
All work described in this section can be performed on the engine installed in the vehicle. An endless chain with 186 links for 116 engines and 198 links for 117 engines...

Removal and installation the drive chain
To replace the timing chain, you need a hand-held stripping machine that allows you to replace the chain without removing the engine from the car. The new timing chain...

Removal and installation the tensioner shoe
To replace the tensioner shoe, it is necessary to remove the camshaft drive cover ( section 2.4 ). The shoe is replaced when the plastic coating on the working surface...

Removal and installation chain guides
The installation locations of the dampers are shown in Fig. 48. To remove the dampers, you need an impact puller, which is used to extract the damper mounting axles. Pay...

Removal and installation the spark distributor drive sprocket
The spark distributor drive sprocket is pressed onto the shaft, which is mounted on supports in the camshaft drive cover and in the cylinder block. Fig. 49 shows the...

Removal and installation camshafts (without removing the engine)
When replacing the camshaft, it is necessary to replace the rocker arms and their supports at the same time. The camshafts for engines of different series have different...

Engine mounts
The engine mount does not require maintenance. To replace parts of the front suspension, rear suspension or shock absorber, the engine must be raised with a lift or...

Exhaust system
Removing and installing the exhaust system is not difficult, as all fasteners are clearly visible. When performing work, the following is recommended: Rubber parts in...

Engine specifications
Operating principle: engine 110.922 - four-stroke engine with forced ignition of the mixture, carburetor; the remaining engines are four-stroke engines with forced...

Tightening torques for threaded connections
Tightening torques for threaded connections

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W140 (1991-1998)