18—210 Removal and installation of oil pump
 
 

 
 
Tightening torques
Nm
 
 

 
 
Oil drain plug to oil pan
35-45
 
 

 
 
M6
9-11
 
 

 
 
Oil pan upper half to cylinder crankcase
 
 

 
 
M8
20-25
 
 

 
 
Oil pan lower half to upper half
9-11
 
 

 
 
Engine carrier to engine mount front
70
 
 

 
 
to crankcase
20-25
 
 

 
 
Oil pump
 
 

 
 
       
 
to flange member
9-11
 
 
Sprocket on oil pump
30-35
 
 
Special tools

 
       
 
 

 
 
Torque wrench handle 20—100 Nm
om617 - 0417-1.jpg
11004-7035
001 589 35 21 00
 
 
Torque wrench handle 50—200 Nm
001 589 44 21 00
 
 

 
 
Changeover ratchet for torque wrench
om617 - 0417-2.jpg
001 589 42 09 00
 
 

 
 
Allen wrench 5 mm, 300 mm long
om617 - 0417-3.jpg
116 589 02 07 00
 
 
Knock-out mandrel 9 mm dia.
Socket 27 mm, 1/2" square for rotating engine
Knock-in tool for oil dipstick guide tube
Conventional tool
Engine hoist (Motordirigent) size 1.5
110 589 02 15 00 001 589 65 09 00
117 589 00 31 00
 
 
e.g. made by Backer, D—5630 Remscheid Order No. 3178
 
 

 
 
18.8-210/1 F2
 
 

 
         

 

       
 

 
 
Note
Since a connecting link might wipe against timing chain or oil pan, do not open double roller chain during repairs and connect again by means of a con­necting link.
To renew double roller chain and tensioning unit, completely remove oil pan (01—310) and front cylin­der housing cover (01—107).
 
 

 
 
Removal
om617 - 0418-1.jpg
 
 
1    Completely remove oil pan (01—310).
2    Unscrew fastening screw (56) of sprocket.
3    Remove torsion spring (47) from clamp (45) in rearward direction.
4   Turn clamp in upward direction.
 
 
45 Clamp
47 Torsion spring
 
 

 
 
5    Remove sprocket by means of two screwdrivers.
6   Unscrew hex. screws (arrows) on oil pump and remove oil pump.
7    Remove sprocket.
8   Pull flange member (43) out of cylinder crankcase.
om617 - 0418-2.jpg
 
 
43 Flange member 56 Fastening screw
 
 
US -148&1
 
 

 
 
18.8-210/2 F 2
 
 

 
       

 

       
 

 
 
Installation
 
 

 
 
9    Renew O-ring (42) on flange member, if damaged.
10    Insert flange member.
11    Place sprocket into double roller chain.
12    Install oil pump and tighten fastening screws to 20—25 Nm on crankcase or 9—11 Nm on flange member.
42 O-ring
om617 - 0419-1.jpg
 
 

 
 
13   Place sprocket on drive shaft and tighten fasten­ing screw (56) to 30-35 Nm.
14   Set clamp on double roller chain and place torsion spring on clamp.
15   Completely install oil pan (01-310).
 
 

 
 
Layout of oil pump
 
 

 
 
om617 - 0419-2.jpg
 
 

 
 
             
 


1____| \_J TB3-80S3


 
 
38 Crankshaft bearing cover
47
Torsion spring
58
Drive sprocket
 
 
40 Hex. screw
48
Bolt
59
Drive shaft
 
 
41 Hex. screw
50
Fitted pin
60
Double roller chain
 
 
42 O-ring
53
Spring washer
61
Strainer
 
 
43 Flange member
54
Hex. screw
64
Adapter
 
 
44 Locking ring
55
Hex. screw
66
Closing plug oil pressure relief valve
 
 
45 Clamp
56
Hex. screw


 
 
46 Bushing
57
Washer


 
 
18.8-210/3 F2