3 Block, Sump & Main Bearings.srl

INTERNAL USE ONLY

Bloc Bl ock k , Sump um p and Main Bea Bearing ri ngs s WLSA

Presentation resentation of Block Bl ock,, Oil Sump and Main Beari Bearing ng

Cylinder Block, Oil Sump and Main Bearings The engine block is the biggest and single most expensive part of yo your en eng gin ine. e. It is ca cast sted ed in one piece. piece. The crankshaft and main bearings are under slung. slung. The main bearing cap is supported by two hydraulically tensioned main bearing screws and two horizontal side screws. screws. The cooling water header is cast into the engine block. The crankcase covers, made of light weight metal, are sealed against the engine block by means of rubber seals. The lubricating oil sump is welded. INTERNAL USE ONLY

9L46 CR

INTERNAL USE ONLY

Cross Sectional View of W V46

INTERNAL USE ONLY

Cross Sectional View of W L46

INTERNAL USE ONLY

The Cylinder Block

INTERNAL USE ONLY

Cylinder Block of W9L46

INTERNAL USE ONLY

Side View of Cylinder Block of L46

INTERNAL USE ONLY

Cylinder Block of W18V46

INTERNAL USE ONLY

Crankcase Doors with Relief Valve

DON’T USE  AIRGUN FOR TIGHTENING

INTERNAL USE ONLY

Cylinder Block in Assembly Line

INTERNAL USE ONLY

Cylinder Head Studs

INTERNAL USE ONLY

Corrosion Pits on Cylinder Head Studs

•

Cylinder head stud o-ring should be replaced at every cylinder overhaul.

•

Pits with depth of 0.1 mm – change the screw

•

Fill the compartment between screw and engine block with lube oil

INTERNAL USE ONLY

Underneath of Cylinder Block, Main Bearing Studs

INTERNAL USE ONLY

Main Bearing Cap Studs

INTERNAL USE ONLY

Main Bearing Side Bolts

INTERNAL USE ONLY

Oil Supply Port of Main Bearing Cap

INTERNAL USE ONLY

Driving End of Cylinder Block

INTERNAL USE ONLY

Timing Gears

INTERNAL USE ONLY

Camshaft Compartment for Segmented Camshaft

INTERNAL USE ONLY

Oil Drain Passage at Camshaft Compartment

INTERNAL USE ONLY

Main Bearing Temperature Sensor 

Main Bearing Cap

Main Bearing Temperature Sensor 

Jack

INTERNAL USE ONLY

Main Bearing Temperature Sensors

INTERNAL USE ONLY

Crankca rankc ase Exp Explo losi sion on Relie li ef Valve lv e

INTERNAL USE ONLY

Hole ol e for Cylinder yli nder Line Li ner  r 

INTERNAL USE ONLY

Flow of Lube in Cylinder Block, L46

to the piston

gudgeon pin bearings

up through the connecting rod connecting rod bearings through the crankshaft main bearings

up through the hydraulic jacks

INTERNAL USE ONLY

distribution pipe at the bottom of the oil sump

Flow of Lube in Cylinder Block, V46

to the piston

gudgeon pin bearings

up through the connecting rod connecting rod bearings through the crankshaft main bearings

up through the hydraulic jacks

INTERNAL USE ONLY

distribution pipe at the bottom of the oil sump

Lube Oil Pipe from Filter to Lube Oil Supply Channel

INTERNAL USE ONLY

Oil Sump, Main Bearing Jack and Running-In Filter 

Remove running  –in after 50 – 250 running hours

INTERNAL USE ONLY

Dry Sump

INTERNAL USE ONLY

Wet Sump

INTERNAL USE ONLY

Main Bearing Cap Jacks

 –  Floating design  –  Free suction pipe  –  Without welded supports

INTERNAL USE ONLY

Main Bearing Cap Jacks

INTERNAL USE ONLY

Pump for Main Bearing Cap Jack

• •

140 Bar, Relief Valve Setting Use engine oil o nly

INTERNAL USE ONLY Up

Down

Main Bearing Cap Jack

INTERNAL USE ONLY

Installing the Hydraulic Pump for the Jack

INTERNAL USE ONLY

Lowered Main Bearing Cap

WIEW A

UP

INTERNAL USE ONLY

DOWN

Crankcase Breather 

INTERNAL USE ONLY

Charge Air Receiver, V46

INTERNAL USE ONLY

Real Photo of 9L46

INTERNAL USE ONLY

Main Bearing Shells

 –  Reliable Thick-Pad bearing technology  –  Big crankshaft journals and pin diameters ensure low bearing loads  –  Low bearing loads allow softer bearing materials  –  Results in virtually seizure-free bearings

INTERNAL USE ONLY

Main Bearings

INTERNAL USE ONLY

Tri-Metal Bearing

Tin-Flash Tin Antimony  Nickle

Copper Lead 

Steel

INTERNAL USE ONLY

Hydraulically Pre-Tensioned Studs, V46

INTERNAL USE ONLY

Hydraulically Pre-Tensioned Studs, L46

INTERNAL USE ONLY

Tightening Torque Values Pos.

Screw connection

Hydraulic pressure

Tightening

Hydraulic

torque for stud

cylinder

when tightening 34

Cylinder head screws M90 x 6

430 (bar)

(Nm) 400 ±40

35

Main bearing screws M90 x 6

815

400 ±40

861143

36

Thrust bearing screws M56

600

300 ±30

861100

37

600

By hand

861100

38

Lateral screws of main bearings and thrust bearing M56 Connecting rod screws M72x6

800

400± 40

861142

39

Connecting rod screws M42

760

150± 10

861120

40

Counterweight screws M72 x 6 Central screws for intermediate gears M90 x 6 Fixing bolts M42 (resilient mounting)

650

400± 40

861142

815

400± 40

861143

700

By hand

861120

41 49

INTERNAL USE ONLY

861143

Hydraulic Cylinders

INTERNAL USE ONLY

Tools for Main Bearings

INTERNAL USE ONLY

Lifting Tool for the Tools of Main Bearings V

INTERNAL USE ONLY

V

Removing the Main Bearings

INTERNAL USE ONLY

Main Bearing Temp Sensor, Side Bolt Caps

INTERNAL USE ONLY

Hydraulic Tool for Side Bolts

Lift the distance sleeves [861009] into position on the side screws. Both sides can be loosened simultaneously INTERNAL USE ONLY

Leveling Cylinder, Loosening Nut

INTERNAL USE ONLY

Lifting Tool for Hydraulic Sleeve

INTERNAL USE ONLY

Lifting Hydraulic Sleeve

INTERNAL USE ONLY

Positioning to Fix the Hydraulic Sleeve

836001

836041

861143

861041

V Type Engine INTERNAL USE ONLY

In-Line Engine

Holding the Hydraulic Sleeve 861009

861010

INTERNAL USE ONLY

Lifting Tool, Jack Piston

INTERNAL USE ONLY

Installing the Jack Piston

INSIDE PART OF 861143 LIFTED BY HAND

INTERNAL USE ONLY

Leveling the Cylinder, Loosening the Nut

INTERNAL USE ONLY

Removing the Jack Sleeve, Connecting the Hoses

INTERNAL USE ONLY

Removing the Remaining Side Bolt, Removing Nut

INTERNAL USE ONLY

Pumping to Lower the Main Bearing Cap

INTERNAL USE ONLY

Removing the Lower and Upper Bearing Shell

INTERNAL USE ONLY

Turning the Upper Main Bearing Shell

851020

INTERNAL USE ONLY

Inspecting and Lubricating the Upper Main Bearing

INTERNAL USE ONLY

Installing the Upper Bearing Shell

PUSH BY HAND

851001

INTERNAL USE ONLY

Raising the Main Bearing Cap, Installing the Nut

INTERNAL USE ONLY

Lubricating the Side Bolt, Hand Tightening Side Bolts

INTERNAL USE ONLY

Pre Tightening of Side at “ B” Bank Loosening

1. Side screw nuts

One by one or simultaneously

2. Main bearing nuts

Simultaneously

Pre Tightening

1. Side screw nut on rear side

Tightening pressure is 200 bar 

Final Tightening

1. Main bearing nuts Simultaneously 2. Side screw nut on rear side 3. Side screw nut on maneuvering side

INTERNAL USE ONLY

 Applying 200 Bar on Side Bolt at “ B” Bank

INTERNAL USE ONLY

Leveling and Tightening Jack, Installing the Bearing Temp Sensor 

INTERNAL USE ONLY

Final Tightening the Side Bolts, Closing the Cover 

INTERNAL USE ONLY

Dismantling and Assembling Main Bearing, Movie

INTERNAL USE ONLY