Engine timing, valves,  OM617

Removal and installation of intermediate sprocket shaft

 

 

05—412 Removal and installation of intermediate sprocket shaft

 

Tightening torques

 

Nm
Nuts for cylinder head cover

 

15
Necked-down screw for camshaft sprocket

 

80
Fastening screw for injection timer

 

40
Coupling nuts for injection lines

 

25
Closing plug for chain tensioner

 

90

 

 

 

Socket 27 mm, 1/2″ square, for rotating engine
“OOt- 619)
001 589 65 09 00
Box wrench socket, open, 17 mm, 1/2″ square, for injection lines

 

000 589 68 03 00

 

Impact puller for bearing bolt (basic unit)
om617 - 0211-1.jpg
116 589 20 33 00
Threaded bolt M 6, 50 mm long for impact puller
116 589 01 34 00
Articulated wrench
000 589 21 07 22
Overflow pipe
636 589 02 23 00
Holding plate
616 589 02 40 00

 

Note
om617 - 0211-2.jpg
The injection timer is mounted on intermediate sprocket shaft with a screw M 10 x 45 (95).
On engine 617.950 with double diaphragm vacuum pump, the screw has a hollow shaft.
The vacuum pump is provided with the required oil through this hollow screw.
Layout of double diaphragm vacuum pump
94   Chain locking screw   101    Lock washer
95   Screw M 10 x 45        102    Bearing bushing front
97   Washer                        103   Woodruff key
98    Injection timer           104    Intermediate sprocket shaft
99   Screw M 6 x 12          105   Bearing bushing rear
100   Snap ring B 6              109   Bearing bushing injection timer

 

05.8-412/1 F2

 

 

 

On engines with piston vacuum pump, screw (95) is not hollow.
Do not mix up screws (95).
om617 - 0212-1.jpg
Layout with piston vacuum pump
94    Locking screw
95   Screw M 10 x 45
97    Washer
98    Injection timer
99    Screw M 6 x 12 100   Snap ring B 6
101    Lock washer
102    Bearing bushing front
103   Woodruff key
104    Intermediate sprocket shaft
105    Bearing bushing rear 109    Bearing bushing

 

On engine 617.950 since August 1978, and on engines 617.951/952 since start of series, the intermediate sprocket shaft (B) and the rear bearing bushing (B) of engines 615, 616 and 617.912 are installed for reasons of standardization.
These parts can also be installed on engines 617.950 manufactured at an earlier date.
om617 - 0212-2.jpg
A Intermediate sprocket shaft 1st version B Intermediate sprocket shaft 2nd version

 

A Rear bearing bushing 1st version B Rear bearing bushing 2nd version
om617 - 0212-3.jpg

 

05.8-412/2 F 2

 

 

 

Removal
1    Remove fan and radiator shell.
2    Remove vacuum pump (42—610).
3    Remove injection timer (07.1-210).
4    Remove injection pump (07.1 — 180).
5   Pull out intermediate sprocket shaft toward the rear.

 

Installation

 

6    Insert intermediate sprocket shaft from the rear.
7    Install injection timer (07.1—210).
8    Install injection pump (07.1 — 180).
9   Check timing of camshaft (05—215) and begin of delivery (injection timing) of injection pump (07.1-110).
10    Install vacuum pump (42-610).
11    Install fan and radiator shell.

 

Intermediate sprocket shaft and injection timer

 

om617 - 0213-1.jpg

 

95   Screw M 10 x 45
97   Washer
98   Injection timer
99   Screw M 6 x 12 100   Snap ring B 6
101    Lock washer
102   Bearing bushing front
103   Woodruff key
104    I ntermediate sprocket shaft
105   Bearing bushing rear

 

05.8-412/3 F2