IMPACT 4.07.
113 11/10/2021
Chassis ID Path
J30CM 817 2372/Repair//Yoke, injector, check. Valve cover removed
Model Identity
C(RT) 153778399
Publish date ID/Operation
28/11/2020 23732-3
23732-3 Yoke, injector, check
Valve cover removed
Illustrations may differ slightly from the actual vehicle being serviced. However, key
components addressed in this information are represented as accurately as possible.
All threaded fasteners that do not have a tightening torque specification in the information are
tightened to a standard torque. Standard torques are available in the following specification.➠
Standard tightening torques
CAUTION
Risk of material damage
Internal oil leak, low oil pressure in the rocker arm bridge, low effect on the VEB engine brake, valve
cover may melt.
▶ Install the pipe without the screw to avoid unnecessary pre-tensioning. If the pipe has been
removed, replace the pipe along with the sealing rings.
CAUTION
Risk of material damage.
Dirt and foreign bodies can damage the lubrication system.
▶ Ensure that the work area is clean.
▶ Cover or plug openings immediately. If work on removed parts is disrupted, cover the parts.
▶ Ensure that tools, gloves and protective clothes are as clean as possible.
Special tools
88800352
1 Disconnect the connector.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.113 11/10/2021
2 Clean around the valve.
3 Remove the screw.
Note
Exercise caution while removing the screw as it may fall into the timing gears, which
may cause engine damage.
4 Remove the screws.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.113 11/10/2021
5 Remove the valve.
6 Blank off the holes to prevent dirt from entering the system.
7 Remove the pipe.
Note
The pipe can not be reused.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.113 11/10/2021
8 Loosen the screws (1-7).
Note
To prevent damage to the shaft, loosen the screws evenly in stages at different points.
9 Remove the screws and leaf springs.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.113 11/10/2021
10 Adjust the lifting tool (A).
11 Install the lifting tool (A).
Required material
LIFTING_TOOL 88800352
12 Secure the pistons.
Note
Use cable ties.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.113 11/10/2021
13 Remove the rocker arm shaft.
14 Torque tighten the screws.
Tightening torque
Unit injector, yoke, screw (after tightening) 60 – 65 Nm
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.113 11/10/2021
15 Lubricate the valve bridges and camshaft lobes with engine oil.
16 Position the rocker arm shaft.
17 Remove the lifting tool (A).
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.113 11/10/2021
18 Remove the cable ties.
19 Install the leaf springs and screws.
Note
Ensure that the leaf springs are correctly positioned after the screws are tightened.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.113 11/10/2021
20 Torque tighten the screws.
Tightening torque
Rocker arm bridge, screw 1. Tightening sequence: 4-2-6
90 ±5 Nm
2. Tightening sequence: 1-3-5-7
60 ±5 Nm
3. Loosen the screws: 4-2-6
3 pcs
4. Tightening sequence: 4-2-6
60 ±5 Nm
5. Tightening sequence: 1-2-3-4-5-6-7
100 ±5°
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.113 11/10/2021
21 Clean the valve.
22 Clean the contact surfaces.
23 Remove the sealing ring.
Note
Check that the oil channels are free of impurities.
24 Install the sealing ring.
Note
Use a new part.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.113 11/10/2021
25 Lubricate the O-rings.
Required material
Diesel engine oil
26 Install the pipe.
Note
Use new parts.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.113 11/10/2021
27 Install the valve along with the pipe.
28 Install the screws.
29 Torque tighten the screws.
Tightening torque
Solenoid valve, screw 24 ±4 Nm
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.113 11/10/2021
30 Install the screw.
31 Torque tighten the screw.
Tightening torque
Solenoid valve, screw 24 ±4 Nm
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.113 11/10/2021
32 Connect the connector.
33 Note the camshaft marking.
Tech data
Adjust the inlet valve rocker arm 1-2-3-4-5-6
Adjust the exhaust valve rocker arm (and the exhaust V1-PV2-V3-PV4-V5-PV6
brake rocker arm, if applicable)
Adjust the injector rocker arm PV2-PV4-PV6
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.113 11/10/2021
Note
The marking can be for the adjustment of several cylinders.
Note
When checking or adjusting, the mark must be centred between the lines on the
camshaft cap.
34 Rotate the crankshaft to the next mark.
Note
Rotate the crankshaft in the normal engine rotation direction.
Ask for assistance.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.113 11/10/2021
35 Markings 1-6 apply to the adjustment of the inlet valves. Markings V1-V3-V5 apply to the
adjustment of the exhaust valves. Markings PV2-PV4-PV6 apply to the adjustment of the
exhaust valves and the injectors.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.113 11/10/2021
36 Check the valve clearance.
Tech data
Inlet valve, rocker arm, clearance 0.2 ±0.05 mm
37 Perform this procedure when the condition below is met.
Conditions
● If the valve clearance is not correct
▶ Loosen the nut (A).
▶ Adjust the screw (B) until the feeler blade can be moved but there is some resistance.
▶ Prevent the screw from turning (B), and torque tighten the nut (A).
Tightening torque
Rocker arm, lock nut 38 ±4 Nm
38 Rotate the crankshaft to the next mark.
Service hint
Mark the checked or adjusted rocker arm.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.113 11/10/2021
Ask for assistance.
39 Check the valve clearance.
Tech data
Exhaust valve, rocker arm, clearance 1.6 ±0.05 mm
Note
Use a feeler gauge.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.113 11/10/2021
40 Perform this procedure when the condition below is met.
Conditions
● If the valve clearance is not correct.
▶ Loosen the nut (A).
▶ Adjust the screw (B) until the feeler blade can be moved but there is some resistance.
▶ Prevent the screw (B) from turning, and torque tighten the nut (A).
Tightening torque
Rocker arm, lock nut 38 ±4 Nm
41 Rotate the crankshaft to the next mark.
Service hint
Mark the checked or adjusted rocker arm.
Ask for assistance.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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42 Loosen the nut (A).
43 Loosen the screw (B).
Note
Make sure that there is clearance between the screw (B) and the top of the injector.
44 Adjust the screw (B) until the screw (B) contacts with the top of the injector.
Note
Make sure that the rocker arm roller lies against the camshaft.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.113 11/10/2021
45 Angle tighten the screw (B).
Tech data
Injector, adjusting screw 240 ±20°
Service hint
Put an alignment mark on the rocker arm to ensure that the adjustment screw is not
moving while tightening the lock nut.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.113 11/10/2021
46 Perform this procedure when the condition below is met.
Conditions
● If an extension bar/adapter are used for torque tightening
▶ The example shows a 450 mm long torque wrench and an extension bar/adapter (1) 50 mm
long. The required assembly torque, T, is 48 +-8 Nm. The calculation based on the example
gives a torque setting, C, of 43 Nm. This results in a tolerance of +- 6 Nm.
Note
The torque wrench setting given in the specifications must be adapted to suit the
increased length of the wrench and tool combination.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.113 11/10/2021
▶ Ensure that the wrench and tool remain aligned during the tightening.
47 Prevent the screw (B) from turning and torque tighten the nut (A).
Tightening torque
Injector, rocker arm, lock nut 52 ±4 Nm
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
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IMPACT 4.07.113 11/10/2021
48 Adjust the other rocker arms in the same way.
Service hint
Ask for assistance.
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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