02-152-14

ATTENTION:
GENERAL MANAGER
PARTS MANAGER
CLAIMS PERSONNEL
SERVICE MANAGER
q
q
q
q
IMPORTANT - All
Service Personnel
Should Read and
Initial in the boxes
provided, right.
SERVICE BULLETIN
APPLICABILITY:	2014MY Forester Turbo
NUMBER: 02-152-14
SUBJECT:	
Revised Valve Train Parts to Reduce a Warm Engine
Tapping Sound from the Left Cylinder Head
DATE: 04/22/14
INTRODUCTION
This bulletin announces the availability of revised valve train components developed to reduce a
tapping sound (sometimes described as “a sewing machine type” sound) which may be heard coming
from the left-hand (B2) side of the engine when the engine is warm. This bulletin does not address
any cold engine or start-up sounds. The changes consist of:
•
•
•
Design change to the valve rockers
Camshaft profile change
1.65mm longer intake and 2.45mm longer exhaust valve stem lengths
•
Revised rocker pivots were incorporated at the start of 2014MY production
PART INFORMATION
PART NAME
Part Number
INTAKE VALVE
Change
Identification
Part Number
EXHAUST VALVE
Change
Identification
Part Number
VALVE ROCKER
Change
Identification
INTAKE CAMSHAFT, LEFT
Part Number
Change
Identification
NEW
OLD
13201AA670
13201AA640
Stem Length:
104.95mm
I31
13202AA800
Stem Length:
97.9mm
E3B
13249AA250
Change to Roller
Portion
Circular groove added
on pivot side
13037AA970
Cam Profile Change
38B380
Stem Length:
103.3mm
I22
13202AA740
Stem Length:
95.45mm
E2B
13249AA240
n/a
n/a
13037AA840
n/a
38B240
Continued...
CAUTION: VEHICLE SERVICING PERFORMED BY UNTRAINED PERSONS COULD
RESULT IN SERIOUS INJURY TO THOSE PERSONS OR TO OTHERS.
Subaru Service Bulletins are intended for use by professional technicians ONLY. They
are written to inform those technicians of conditions that may occur in some vehicles, or
to provide information that could assist in the proper servicing of the vehicle. Properly
trained technicians have the equipment, tools, safety instructions, and know-how
to do the job correctly and safely. If a condition is described, DO NOT assume that this
Service Bulletin applies to your vehicle, or that your vehicle will have that condition.
Bulletin Number: 02-152-14; Date: 04/22/14
SUBARU OF AMERICA, INC. IS
“ISO 14001 COMPLIANT”
The international standard for excellence
in Environmental Management Systems.
Please recycle or dispose of automotive
products in a manner that is friendly to our
environment and in accordance with all
local, state and federal laws and regulations.
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NEW
OLD
Part Number
13052AA970
13052AA840
Change
Cam Profile Change
n/a
Identification
53B380
53B240
PART NAME
EXHAUST CAMSHAFT, LEFT
The illustrations below show additional information about the changes to the valve rockers, camshafts
and valves to help readily distinguish them from the previous version parts.
Addition of
groove
Identification
Markings
SERVICE PROCEDURE / INFORMATION
If you receive a customer concern of a tapping sound from the B2 cylinder head, confirm it is isolated
to the B2 valve train area before proceeding with any repairs. Once verified, order and replace the
intake and exhaust camshafts, the 4 intake valves, 4 exhaust valves, and all 8 rockers. Refer to the
service procedures outlined in the applicable Service Manual for installation.
NOTE: When setting the valve clearances, the intakes should be set to 0.13mm +0.02 / - 0.03
and the exhausts set to 0.22mm +/- 0.02. These are revised clearance specifications and are not
reflected in the Service Manual.
IMPORTANT: Do not mix old and new parts together as it will become impossible to obtain intake
valve clearances that are within specification.
TIP: An egg carton makes a perfect organizer tray. Make sure to mark it as necessary (front, intake,
exhaust) to eliminate any mixing of parts.
Continued...
Bulletin Number: 02-152-14; Date: 04/22/14
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WARRANTY / CLAIM INFORMATION
For vehicles within the Basic New Car Limited and/or Powertrain Warranty, this repair may be
claimed using the following information:
LABOR DESCRIPTION
LABOR
OPERATION #
FAIL
CODE
LABOR
TIME
H4 ENGINE R&R FOR CYLINDER HEAD
SERVICING
B293-130
3.8
LH CYLINDER HEAD R&R
C293-122
5.3
AER-48
ALL VALVES REPLACE, ONE CYLINDER
HEAD Includes: Valve Seating, R&R of the
Springs, Valve Seals & Valve Adjustment
C243-001
0.8
VALVE TRAIN NOISE DIAGNOSIS
C243-001
0.3
Bulletin Number: 02-152-14; Date: 04/22/14
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