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NHTSA ID Number: 10232501
Manufacturer Communication Number: 0215214R
Summary
Revised Valve Train Parts to Reduce a Warm Engine Tapping Sound from the Left Cylinder Head
NUMBER: 02-152-14R
DATE: 04/22/14
REVISED: 06/12/14
APPLICABILITY: | 2014MY Forester Turbo |
---|---|
SUBJECT: | Revised Valve Train Parts to Reduce a Warm Engine Tapping Sound from the Left Cylinder Head |
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
- 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 | NEW | OLD | |
---|---|---|---|
INTAKE VALVE | Part Number | 13201AA670 | 13201AA640 |
Change | Stem Length: | Stem Length: | |
104.95mm | 103.3mm | ||
Identification | I31 | I22 | |
EXHAUST VALVE | Part Number | 13202AA800 | 13202AA740 |
Change | Stem Length: | Stem Length: | |
97.9mm | 95.45mm | ||
Identification | E3B | E2B | |
VALVE ROCKER | Part Number | 13249AA250 | 13249AA240 |
Change | Change to Roller Portion | n/a | |
Identification | Circular groove added on pivot side | n/a | |
INTAKE CAMSHAFT, LEFT | Part Number | 13037AA970 | 13037AA840 |
Change | Cam Profile Change | n/a | |
Identification | 38B380 | 38B240 | |
EXHAUST CAMSHAFT, LEFT | Part Number | 13052AA970 | 13052AA840 |
Change | Cam Profile Change | n/a | |
Identification | 53B380 | 53B240 |
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.
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.
1 Affected Product
Vehicle
MAKE | MODEL | YEAR |
SUBARU | FORESTER | 2014 |
1 Associated Document
Manufacturer Communications
NUMBER: 02-152-14R
DATE: 04/22/14
REVISED: 06/12/14
https://www.nhtsa.gov/recalls?nhtsaId=10232501
MC-10232501-9999.pdf 420.295KB
NHTSA ID Number: 10068317
Manufacturer Communication Number: 02-152-14R
Summary
SUMMARY TO BE PROVIDED ON A FUTURE DATE.
1 Associated Document
Service Bulletin Document
NUMBER: 02-152-14R
DATE: 04/22/14
REVISED: 06/12/14
https://www.nhtsa.gov/recalls?nhtsaId=10068317
SB-10068317-0699.pdf 420.295KB
NHTSA ID Number: 10234842
Manufacturer Communication Number: 0215214
Summary
Revised Valve Train Parts to Reduce a Warm Engine Tapping Sound from the Left Cylinder Head
1 Associated Document
Manufacturer Communications
NUMBER: 02-152-14
DATE: 04/22/14
https://www.nhtsa.gov/recalls?nhtsaId=10234842
MC-10234842-9999.pdf 420.044KB
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SEOCONTENT-START
Bulletin Number: 02-152-14R; Date: 06/12/14 Page 1
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 NEW OLD
Part Number 13201AA670 13201AA640
Change Stem Length: Stem Length: 104.95mm 103.3mm
Identification I31 I22
Part Number 13202AA800 13202AA740 EXHAUST VALVE Change Identification Stem Length: 97.9mm
E3B Stem Length: 95.45mm E2B INTAKE CAMSHAFT, LEFT
Part Number Change
Identification
Part Number Change Identification
13249AA250
Change to Roller Portion
Circular groove added on pivot side
13037AA970
Cam Profile Change 38B380
13249AA240
n/a
n/a 13037AA840
n/a 38B240
NUMBER: 02-152-14R DATE: 04/22/14
REVISED: 06/12/14
APPLICABILITY: 2014MY Forester Turbo
SUBJECT: Revised Valve Train Parts to Reduce a Warm Engine Tapping Sound from the Left Cylinder Head
SERVICE BULLETIN
ATTENTION:
GENERAL MANAGER 0
PARTS MANAGER 0
CLAIMS PERSONNEL 0
SERVICE MANAGER 0 IMPORTANT – All
Service Personnel Should Read and Initial in the boxes provided, right.
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.
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. PART NAME Part Number NEW
13052AA970 OLD
13052AA840 EXHAUST CAMSHAFT, LEFT Change Cam Profile Change n/a Identification 53B380 53B240 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: 02-152-14R; Date: 06/12/14 Page 2 Bulletin Number: 02-152-14R; Date: 06/12/14 Page 3
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
H4 ENGINE R&R FOR CYLINDER HEAD SERVICING LABOR OPERATION #
B293-130 FAIL CODE LABOR TIME
LH CYLINDER HEAD R&R
C293-132
5.3 ALL VALVES REPLACE, ONE CYLINDER
HEAD Includes: Valve Seating, R&R of the Springs, Valve Seals & Valve Adjustment C293-123 1.6 VALVE TRAIN NOISE DIAGNOSIS C243-001 0.3
SEOCONTENT-END