PSB E191: PACCAR MX-13 EPA2017 MY2017 Engine Brake Rocker Inspection

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Technical Information Bulletin
E191

Section
Engine

Subject
PACCAR MX-13 EPA2017 MY2017 Engine Brake Rocker Inspection

Release Date
8/7/2018

Condition
Operators may complain of low power and/or indicator lamps with Torque Contribution faults.

Chassis Affected
5367 (4532 U.S. and 835 Canada) T680, T880, T800, and W900 chassis built from 01/16/2017 through 01/02/2018 equipped
with PACCAR MX-13 EPA2017 MY2017 engines. See the attached chassis list for specific chassis.

Action

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PSB E191: PACCAR MX-13 EPA2017 MY2017 Engine Brake Rocker Inspection

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CAMPAIGN
Service all chassis affected that enter your dealership, even if the customer has no issue with the chassis.
1.
2.
3.

Review the attached chassis list for your dealer code and schedule your customer(s) for service if their chassis is on
the list.
If you are not using Service Management to start repair orders, review the DWWC or SIR for “Complete” next to the
“E191” campaign code prior to performing this repair.
Follow the procedures below to inspect the engine brake rocker assembly and make appropriate repairs.

Warranty
Through Standard Warranty (excludes Extended Warranty) or for repairs completed by 09/01/2019, whichever is greater,
Kenworth will pay for parts at dealer net plus applicable mark-up and labor:
Inspect and replace springs (chassis with less than 100,000 miles), use quick claim E191A (T680/T880):
3.5hours includes:
R and R Air Cleaner 0.3 hr.
R and R Valve Cover 0.2 hr.
R and R Injector harness casing 0.4 hr.
R and R both Rocker Assemblies 1.6 hrs.
Rocker Arm Brake Capsule Spring Inspection and R and R, 2 assemblies 0.4 hr
Engine diagnostic road test 0.5 hr.
Connect DAVIE4, pull codes 0.1 hr.
Inspect and replace springs (chassis with less than 100,000 miles), use quick claim E191B (T800/W900):
3.8 hours includes:
R and R Air Cleaner 0.6 hr.
R and R Valve Cover 0.2 hr.
R and R Injector harness casing 0.4 hr.
R and R both Rocker Assemblies 1.6 hrs.
Rocker Arm Brake Capsule Spring Inspection and R and R, 2 assemblies 0.4 hr.
Engine diagnostic road test 0.5 hr.
Connect DAVIE4, pull codes 0.1 hr.
Inspect and replace springs and valve cover gasket (chassis with over 100,000 miles ONLY), use quick claim E191C
(T680/T880):
3.5 hours includes:
R and R Air Cleaner 0.3 hr.
R and R Valve Cover 0.2 hr.
R and R Injector harness casing 0.4 hr.
R and R both Rocker Assemblies 1.6 hrs.
Rocker Arm Brake Capsule Spring Inspection and R and R, 2 assemblies 0.4 hr.
Engine diagnostic road test 0.5 hr.
Connect DAVIE4, pull codes 0.1 hr.
Inspect and replace springs and valve cover gasket (chassis with over 100,000 miles ONLY), use quick claim E191D
(T800/W900):
3.8 hours includes:
R and R Air Cleaner 0.6 hr.
R and R Valve Cover 0.2 hr.
R and R Injector harness casing 0.4 hr.
R and R both Rocker Assemblies 1.6 hrs.
Rocker Arm Brake Capsule Spring Inspection and R and R, 2 assemblies 0.4 hr.
Engine diagnostic road test 0.5 hr.
Connect DAVIE4, pull codes 0.1 hr.
Eaton Service Tool kit, use quick claim E191E
Reimbursement for the Eaton Service Kit required to perform this repair. One kit is required per dealer. No
more than one kit per dealer may be claimed per dealer.
File a long form claim if rocker arms must be replaced. Include the following in the long form claim:
Use the information in the Claim Coding table below.
For SRT 045-640: You may add an additional 0.1 hr. if replacing more than one rocker arm assembly. Total

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PSB E191: PACCAR MX-13 EPA2017 MY2017 Engine Brake Rocker Inspection

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SRT not to exceed 0.2 hr. for one engine brake rocker assembly.
Rocker Arm(s) parts.
File an additional claim for extraordinary circumstances. A quick claim for standard labor must be filed first.
Kenworth dealers may perform E191 repairs on Peterbilt chassis, but Quick Claims do not apply. For Peterbilt chassis repairs,
use the long claim input form in DWWC selecting "Draft/Offline Claims", the "General" tab, in the "Type of Claim" drop down
box, select "PACCAR Engine Claim", then manually enter claim codes (Campaign #, Failure type, and SRT).

Take-Off Parts Disposition: Ship take-off parts to suppler per ship code EC
CLAIM CODING
Failure Location:

043-005-001

Work Accomplished:

20

Failure Type:

295

Responsibility Code:

05

SRT Code:

041-001
Claim Type:
(Inspect R and R
air cleaner (2.1M
0.3 hr., 1.9M 0.6
hr.)
045-600
R and R Valve
Cover
044-686
Injector harness
casing R and R
( Does not include
air cleaner or
valve cover R and
R)
045-630
R and R Rocker
Assy (for 2)
045-639
Rocker Arm
Brake Capsule
Spring Inspection
and R and R (2
Assemblies)
045-640
R and R Rocker
Arm
100-501
(diagnostic road
test)
045-989
DAVIE 4Connect Davie,
pull codes. All
steps included.

Vendor Code:

E191

F

Parts
Parts are available from PACCAR Parts.
Table 1 Parts Required
Quantity
Part Number
As required, 2188202PE
up to 6

Description
Eaton Spring Repair Kit

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PSB E191: PACCAR MX-13 EPA2017 MY2017 Engine Brake Rocker Inspection

1 ml

Locally Sourced

Loctite 243 (for rocker arm replacement only)

2 oz.

Locally sourced

Engine oil for lubrication (for rocker arm replacement only)

As required

2177656PE

Exhaust Rocker Arm (for rocker arm replacement only)

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Table 2 Additional Parts Required for engines with over 100,000 miles
Quantity
Part Number
Description
1

2105834PE

Valve Cover Gasket. Replace if engine has over 100,000 miles

1

2105835PE

Valve Train Casing Gasket. Replace if engine has over
100,000 miles

Table 3 Special Tool Requirement
Quantity
Part Number
1

2188200PE

Description
Eaton Service Tool Kit.
One kit is required per dealership to perform this repair.

Procedure
A video of this procedure is available here.
You are encouraged to watch this 12 minute video prior to performing this procedure for the first time.
Use the attached Engine Brake Rocker Inspection procedure to inspect the Engine Brake Rocker spring capsules and
make needed repairs.
Re-use the valve cover gasket and valve train casing gasket if the engine has less than 100,000 miles.
An Eaton Service Tool Kit is required to perform this procedure.

Attachments
Dealer\Chassis List
Engine Brake Rocker Inspection
Customer Letter

Authored by: OF

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© Copyright 2018 PACCAR Inc. All rights reserved. We welcome your feedback on this page. For technical questions or

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PSB E191: PACCAR MX-13 EPA2017 MY2017 Engine Brake Rocker Inspection

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concerns about this page, please contact the DealerNet Webmaster.

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Kenworth Truck Company
Customer Service Department
PO Box 1000
Kirkland, Washington 98083-1000
(425) 828-5000

Date TBD

[First VIN]
Customer Name
Address
City, State Zip

Subject: ESB E191: PACCAR MX-13 EPA2017 MY2017 Engine Brake Rocker Assembly Inspection

Dear Kenworth Customer,
Your vehicle (listed within this letter) is eligible for a campaign to inspect and repair the Engine Brake Rocker
Assembly. The assembly was built with out of spec springs, and broken springs can lead to loss of engine brake
function, and eventually to engine damage.
Please contact a Kenworth dealership to schedule an appointment for this work. If you have already had this
work performed, please disregard this letter. You can find your nearest Kenworth dealer at Dealer Locator on the
website www.Kenworth.com.
When contacting your selected Kenworth dealer, refer to campaign E191 and the VIN listed on this letter. The
repair will take approximately 4.0 hours, depending on vehicle configuration and dealer scheduling. There will
be no charge to you if completed within Standard Warranty (excludes Extended Warranty) or for upgrades
completed by 09/01/2019, whichever is greater. We apologize for this inconvenience but ask for your cooperation
to ensure your continued satisfaction with Kenworth products.
If you require further information about this campaign, reimbursement of a pre-notification remedy associated
with this campaign or experience any difficulty in making arrangements for this repair, please contact:
Email: Kenworth.Customer.Service@paccar.com with the bulletin number in the subject line.
OR
Mail: Kenworth Truck Company, P.O. Box 1000, Kirkland, WA 98083-1000, Attn: Customer Service
Department
OR
Phone: 425-828-5000.
If you no longer own this vehicle, we would appreciate your advising us of the new owner if you know their name.
Thank you,

Shondip Chakravarty
Director of Customer Service
Kenworth Truck Company

VIN:

[VIN List]

REPAIR PROCEDURE
PACCAR MX-13 Engine Brake Capsule Replacement

ESB E191

Eaton Service Tool Kit 2188200PE, containing
Qty

Description

1

12V power supply and jumper wire

2

Oil hole plugs

2

Bolts with washers to retain the oil hole plugs

Repair procedure

A video of this procedure is available at:
•

Kenworth DealerNet Service | Standard Repair Times | Kenworth SRT Videos | Video Catalog |
Engine Components | MX13-17 Exhaust Rocker Plunger Spring Inspection and R&R, Rocker Arm
R&R.

•

Peterbilt DealerNet

You are encouraged to watch this 12 minute video prior to performing this procedure for the first time.
CAUTION
Keep the work area clean during this procedure. Dirt and debris may result in engine brake failure.

1. Use procedures found in Engine Rapido to remove the engine brake assembly.
2. Place the engine brake assembly on a clean work area.

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ESB E191
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PACCAR MX-13 Engine Brake Capsule Replacement
3. Clean residual oil from the outermost oil holes (1 & 3) and then firmly insert the rubber plugs into
the oil holes (1 & 3) as shown in the figure below. Install the supplied bolts and fender washers
finger tight, as shown in the following figure, to retain the plugs.

NOTE
Oil hole (2) is left open to supply air.

4. Connect the 12-volt power source and supplied jumper wire to the Oil Control Valve (OCV).
Connect the power source to a 120V source. A distinct click will be heard from the OCV when
power is applied to it.
5. Place clean shop rags over the plugged oil holes (1 & 3 in the image above) to capture any
potential oil spray during the procedure.
6. Place shop rags underneath the brake capsule foot to be removed.

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ESB E191
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PACCAR MX-13 Engine Brake Capsule Replacement
7. Using a rubber tipped blow gun, continuously apply light air pressure to the middle oil hole (2) while
alternating between firmly pushing down and pulling out on the brake capsule foot to remove the
brake capsule from the rocker arm bore.

CAUTION
Use extreme caution when applying air pressure. Depending on how the capsule releases, it may
release with significant velocity. A full face shield should be worn for this Step.
Always firmly grasp the capsule while using shop air.

NOTE
If the brake capsule is completely collapsed (i.e. no spring return) this is an indication of a broken
spring and the entire exhaust rocker arm will need to be removed and replaced.

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ESB E191
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PACCAR MX-13 Engine Brake Capsule Replacement
8. Separate the plunger from the brake capsule body to inspect the condition of internal return spring.
•

SPRING OK: Proceed to STEP 9.

•

SPRING BROKEN: If the brake capsule return spring is broken then the affected rocker must
be replaced. Proceed to STEP 12. after all other capsules have been inspected.

NOTE
If you are having difficulty separating the plunger from the body, depress the check ball in the plunger to
relieve internal stiction!

9. Insert a new spring into the brake capsule body and reinstall the plunger.
10. Install the repaired brake capsule into the rocker arm bore:
a. Press firmly on brake capsule foot until the latch engages to lock it in place.
b. Verify the brake is securely installed by pulling on the foot.

11. Return to STEP 6 and repeat the procedure for the remaining rocker arms.

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PACCAR MX-13 Engine Brake Capsule Replacement
12. Remove the M10 dowel bolts (1 or 2) of the affected rocker assembly.

13. Slide the casting assembly off of the shaft until the damaged exhaust rocker arm can be removed
and replaced with a new rocker arm.

NOTE
Index the components to be removed so they can be reinstalled in the same
location/orientation.

14. Reinstall the casting with the new rocker arm. Use engine oil to lubricate the mating surfaces.
15. Clean the dowel bolt and mating threads.
16. Align the casting to the slot on the shaft, apply Loctite® 243 threadlocker to the threads of the
dowel bolt, and the install and torque the dowel bolt to 48 lb-ft (65 N·m).
17. After all the exhaust rocker arms have been repaired or replaced, remove both of the oil hole plugs,
the 12-volt power supply, and the jumper wire.
18. Install repaired engine brake assemblies onto engine following the recommended service
procedure found in Engine Rapido.
19. Test drive the vehicle to verify engine brake function and performance.

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ESB E191
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