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Camshaft Wear Checking

This service bulletin from Volvo Trucks North America provides instructions for checking camshaft wear on 11L, 13L, and 16L engines. It describes removing the valve cover, installing a cranking tool to turn the camshaft, and inspecting the camshaft lobes for unevenness or damage deeper than a few millimeters that can be felt with a fingernail. Camshafts showing only color changes can still be used, while those with deeper damage require replacement of the camshaft and associated rocker arms.

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358 views4 pages

Camshaft Wear Checking

This service bulletin from Volvo Trucks North America provides instructions for checking camshaft wear on 11L, 13L, and 16L engines. It describes removing the valve cover, installing a cranking tool to turn the camshaft, and inspecting the camshaft lobes for unevenness or damage deeper than a few millimeters that can be felt with a fingernail. Camshafts showing only color changes can still be used, while those with deeper damage require replacement of the camshaft and associated rocker arms.

Uploaded by

Rajan Mullappilly
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Volvo Trucks North America

Greensboro, NC USA

D Service Bulletin
Date

8.2008
Trucks
Group

215
No.

41

Camshaft Wear, Check


Volvo 11L, 13L and 16L Engines
Page

1(4)

Camshaft Wear, Check


This information contains the proper procedure to check the camshaft for wear and
damage on Volvo 11L, 13L and 16L engines.

Contents
Camshaft Wear, Checking page 2

Note: Information is subject to change without notice.


Illustrations are used for reference only and may differ slightly from the actual
vehicle being serviced. However, key components addressed in this information are
represented as accurately as possible.

PV776-20161234 USA31299.ihval
Volvo Trucks North America
Service Bulletin

D
2154-06-02-01
Camshaft Wear, Checking
1
Date
8.2008
Group
215
No.
41
Page
2(4)

Remove the valve cover from the engine. Refer to Group


21 for service procedures.

2
Install the engine turning tool.

9996956 or , 88800014

3
Turn the camshaft using the cranking tool. Check the
camshaft with regard to wear on the camshaft lobes and
damage to the surfaces.

Note: Unevenness can develop on cam lobe surfaces


during normal operation. This does not mean the
camshaft must be changed.
Volvo Trucks North America
Service Bulletin

D 4
Date
8.2008
Group
215
No.
41
Page
3(4)

W2006614

Acceptable Injection Lobe Wear


(only change of coloration)
These figures shows examples of scoring that will not
affect the running of the engine. Camshafts with this type
of scoring do not need to be changed.

W2006616

Acceptable Inlet/Exhaust/Brake Lobe Wear


(only change of coloration)
Volvo Trucks North America
Service Bulletin

D
5
Date
8.2008
Group
215
No.
41
Page
4(4)

W2006615

Unacceptable Injection Lobe Wear


(several millimeters of damage which can be
felt with fingernail)
These figures show examples of a camshaft with material
damage. The camshaft should not be reused. Replace
the rocker arms that roll on the damaged cam lobes when
the camshaft is replaced.

W2006617

Unacceptable Inlet/Exhaust/Brake Lobe Wear


(several millimeters of damage which can be
felt with fingernail)

6
Install the valve cover. Refer to Group 21 for service
procedures.

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