| “This site contains affiliate links for which OEMDTC may be compensated” |
NUMBER: 02-146-13R
DATE: 10/07/13
REVISED: 02/05/15
| APPLICABILITY: | 2012-13MY Impreza 2.0L |
| 2013MY XV Crosstrek | |
| SUBJECT: | Revised Valve Train Parts to Reduce a Warm Engine Tapping or Sewing Machine type Sound from the Left Cylinder Head |
INTRODUCTION
This bulletin announces the availability of revised valve train components developed to reduce a tapping 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
- Increased intake valve stem length (1.65mm longer Intake, 2.4mm longer Exhaust)
In addition, the insulator pad has been eliminated from the B2 intake manifold protector.
COUNTERMEASURE IN PRODUCTION
| VEHICLE | Model | Starting VIN / Production Date |
|---|---|---|
| Impreza and XV Crosstrek | 4-Door | D*005801 / August 8, 2012 |
| 5-Door | D*209069 / August 22, 2012 |
NOTE: 2013MY 5-Door models with the 12th VIN character = ”8” (e.g D*8*****), are all AFTER this countermeasure.
PART INFORMATION
| PART NAME | Part Number | NEW | OLD |
|---|---|---|---|
| INTAKE VALVE | 13201AA670  | 13201AA640 | |
| Change | Valve stem length:
104.95mm | Valve stem length:
103.3mm | |
| Identification | I31 | I22 | |
| EXHAUST VALVE | Part Number | 13202AA750 | 13202AA670 |
| Change | Valve stem length:
96.5mm | Valve stem length:
94.1mm | |
| Identification | E3 | E2 | |
| VALVE ROCKER | Part Number | 13249AA250 | 13249AA240 |
| Change | Change to roller portion | – | |
| Identification | Circular groove added on pivot side | No groove | |
| PIVOT, ROCKER ARM | Part Number | 13296AA090 | 13296AA051 |
| Change | Not specified | – | |
| SPECIAL NOTE:
These revised Pivots have been installed during production starting with VIN: D*005801 Impreza (4-Door) D*209069 Impreza and XV Crosstrek (5-Door) | – | ||
| CAMSHAFT INTAKE, LEFT | Part Number | 13037AA940 | 13037AA860 |
| Change | Cam profile change | – | |
| Identification | 38B340 or 38B390 | 38B260 or 38B310 | |
| CAMSHAFT EXHAUST, LEFT | Part Number | 13052AA940 | 13052AA860 |
| Change | Cam profile change | – | |
| Identification | 53B340 or 53B390 | 53B260 or 53B310 | |
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 all 4 intake and all 4 exhaust valves, all 8 rockers, both the intake and the exhaust camshaft and all 8 rocker arm pivots (Replace the rocker arm pivots only if the VIN is prior to the listed VIN breakpoint shown in the Parts Information area of this bulletin) as a set using the part numbers shown in this bulletin (in addition to the necessary gaskets and seals). Refer to the service procedures outlined in the applicable Service Manual for installation.
NOTE: When resetting the valve clearances, the intake should be set to 0.13mm +0.02 / – 0.03 and the exhaust should be set to 0.22mm +/- 0.02. These are revised specifications and not reflected in the Service Manual.
IMPORTANT: Do not mix old and new parts together or mix parts between the left and right cylinder head as it will become impossible to obtain 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.
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 | TRANSMISSION | LABOR TIME |
|---|---|---|---|---|
| Engine R&R for Cylinder Head Servicing | B293-110 | ABH-48 | 5MT | 2.7 |
| CVT | 3.0 | |||
| L/H Cylinder Head &/or Gasket R&R | C293-112 | – | 4.9 | |
| Valves- Replace | C293-123 | 1.6 | ||
| Valve Train Noise Diagnosis | C243-001 | 0.3 |
REMINDER: SOA strongly discourages the printing and/or local storage of service information as previously released information and electronic publications may be updated at any time.
- Always refer to STIS for the latest service information before performing any repairs.
NHTSA ID Number: 10235909
Manufacturer Communication Number: 0214613
Summary
Revised Valve Train Parts to Reduce a Warm Engine Tapping or Sewing Machine type Sound from the Left Cylinder Head
1 Associated Document
Manufacturer Communications
NUMBER: 02-146-13
DATE: 10/07/13
MC-10235909-9999.pdf 493.665KB
Loading...
Reload document 
Open in new tab
- Mobil 1 Advanced Fuel Economy full-synthetic motor oil 0W-20 is low-viscosity to help improve fuel economy.*
- Utilizes Mobil 1’s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness
- Helps protect critical engine parts for up to 10,000 miles between oil changesm,** controlling oxidation to prevent oil breakdown and maintaining excellent viscosity
- Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean
- Helps extend engine life by working to prevent damaging deposits and sludge buildup
- 6X better wear protection on critical engine parts than industry standards**
- 1.3X better sludge protection than industry standards*
- 3X Stronger against viscosity breakdown than leading full synthetic^
- Protection for 10,000 miles between oil changes
- Meets or exceeds the following specifications: API SP/SN PLUS/SN | ILSAC GF-6 | GM dexos1 Gen 3 | Meets Ford WSS-M2C947-B1 | Meets Ford WSS-M2C962-A1 |
- Full synthetic 0W-20 motor oil that is made with natural gas and designed to maximize engine protection
- Backed by a 15,000-mile protection guarantee* to protect your pursuit of every mile
- Provides better fuel economy (based on the latest industry standards)
- Keeps pistons cleaner than the toughest industry standard (based on Sequence IIIH results)
- Provides unsurpassed wear protection (based on Sequence IVA wear test using SAE 5W-30)
- Advanced protection against the four main causes of engine breakdown: wear friction heat and deposits
- Full synthetic 0W-20 formula offers 24X stronger protection against engine-killing contaminants than the leading full synthetic motor oil
- 40% better wear protection vs. industry standards as tested in the Sequence IVB engine test
- 25% better deposit protection with superior engine cleaning detergents as tested in the GMOD engine test
- Meets or exceeds all requirements of ILSAC GF-6A, API SP, API SN with SN Plus, API SN, GM dexos 1 Gen 3
- 3X Stronger than the leading full synthetic*
- 10X Better high stress performance**
- 20,000 miles between oil changes***
- Approved and Licensed Specifications: Exceeds API SP/SN PLUS/SN/SM |ILSAC GF-6 | GM dexos1 Gen 3 | Meets engine test requirements of Chrysler MS 6395 | Meets Ford WSS-M2C947-B1 | Meets Ford WSS-M2C962-A1 |
- Viscosity breakdown as measured in Kurt Orbahn test on 5W-30 grade |**As measured in Seq IX test under high load/torque conditions vs. API SP test limits | ***Or one year, whichever comes first
- Mobil 1 High Mileage full-synthetic motor oil 0W-20 is designed for engines with over 75,000 miles to go up to 10,000 miles between oil changes.*
- Utilizes Mobil 1’s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness
- Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
- Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -30 degrees F)
- Mobil 1 is specially formulated to help remove sludge and lower engine temperatures
- Ultimate protection against wear, friction, heat and deposits, the main reasons for engine breakdown
- 24X stronger protection against water contamination than the industry-leading synthetic motor oil — it fights rust, corrosion, and other threats to help maximize vehicle life
- Dual Defense Additive Technology helps keep your engine clean and running at peak performance for optimal fuel economy and performance
- 10X stronger against oil breakdown and 50% greater wear protection than industry standards
- Meets or exceeds all requirements of ILSAC GF-6A, API SP, API SN with SN Plus, API SN, dexos 1 Gen 3
- Full synthetic 0W-20 motor oil provides strong engine performance and protection against deposits between oil changes
- Ideal for use in modern turbocharged engines and high-performance vehicles like sports cars, SUVs, trucks, and minivans
- Designed to deliver more power and less friction, reducing friction to maximize horsepower (compared to Quaker State motor oil)
- Provides improved fuel economy (based on the latest industry standard)
- Excellent protection against formation of sludge and other harmful deposits (based on Sequence IIIH & VH tests on 0W-20 engine oil)
- Mobil 1 Advanced Fuel Economy full-synthetic motor oil 0W-20 is low-viscosity to help improve fuel economy.*
- Utilizes Mobil 1’s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness
- Helps protect critical engine parts for up to 10,000 miles between oil changes,** controlling oxidation to prevent oil breakdown and maintaining excellent viscosity
- Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean
- Helps extend engine life by working to prevent damaging deposits and sludge buildup
- Phosphorus Replacement Technology to help extend the life of the emission system
- Reduces leaks, oil burnoff and power robbing deposits
- 15,000 miles between oil changes*
- Meets or exceeds the following specifications: API SP/SN PLUS/SN/SM | ILSAC GF-6 | Meets engine test requirements of Chrysler MS 6395 | Meets Ford WSS-M2C947-B1 | Meets Ford WSS-M2C962-A2
- Or one year, whichever comes first
Last update on 2025-04-17 / Affiliate links / Images from Amazon Product Advertising API
This product presentation was made with AAWP plugin.
