I was informed by my dealer that there was a internal campaign from Subaru for the authorize change of the oil pickup tube if a car came in with that specific problem. But now they mysteriously can't find that memo. I am looking for any information pertaining to that memo or number of reference for that memo.
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2007 Subaru Impreza WRX STI Question: Service Memo for oil pickup tube
Answer #1mastertech6371 May 15, 2012, 18:22Master
APPLICABILITY: All Vehicles Equipped with Turbo
SUBJECT: Turbocharger Mesh Filter Screen
It is possible that the turbo oil supply mesh filter, which is located inside the banjo bolt that secures the turbocharger oil supply pipe to the back of the right side cylinder head, may become clogged thereby preventing oil supply to the turbo resulting in failure. Therefore it is required that this filter screen be checked for obstructions any time a Turbocharger is being replaced for a failure.
If the mesh filter screen is found to be obstructed it should be cleaned or replaced. Obstructions could be sludge due to poor engine oil maintenance or harsh driving conditions. Further diagnosis may be required if significant amounts of sludge, metal, and/or other materials
are found in the mesh filter screen. In any turbocharger replacement, sufficient oil pressure to the turbocharger should be verified. Please consult the service manual for the appropriate specification.
^ Note : The mesh filter screen is only available with a replacement banjo bolt. (P/N 14445AA090) Tightening torque: 29 Nm (3.0 kgf-m 21.4 ft-lb).
^ Note : Anytime the banjo bolt is removed or replaced, both copper washers must be replaced with new ones.
^ Make sure the mesh filter screen is installed in the proper direction; incorrect installation will prevent oil supply to the turbocharger. (Note direction, in picture to the right).
^ Do not confuse the turbocharger oil supply mesh filter screen with the Active Valve Control System (AVCS) union screw mesh filter screen.
Refer to Service Bulletin 02-97-05, dated 10/06/05.
Note : In addition, if the turbocharger is replaced, it is required that the oil pan be removed to inspect for sludge, metal and/or other materials. If found and not removed, catastrophic engine damage could occur including the failure of the replacement turbocharger. Oil supply/ returns lines, oil passages, etc should also be checked if questionable. Don't rule out arestricted oil filter. The materials found in the oil pan could also indicate the need for further diagnosis of other engine components.
Engine Oil and Oil Filter
Due to heat generated by the turbocharger and carbon deposits contained in exhaust gas, the oil in a turbocharged engine will deteriorate faster than the oil in a naturally aspirated engine. Therefore, all turbocharged vehicles are classified as "severe driving condition" vehicles and
special care should be taken to use proper grade. The recommended oil and oil filter change interval for turbocharged vehicles is every 3,750 miles or four months, whichever comes first.
Proper lubrication of the turbocharger requires high-quality engine oil. Some do not provide enough lubrication performance or durability when used in turbocharged engines. Using poor-quality oil or oil not designed for turbo engines may cause damage to the turbocharger and other engine components. Consequently, it is critical to follow Subaru vehicle owner¡Çs
and service manuals for recommended oil grade and viscosity.
The Subaru Genuine Oil Filter is the only filter that Subaru has tested to meet requirements for filtration and flow. Aftermarket oil filters may have different filtration performance and relief-valve opening pressure, which could affect filter and engine performance.
Any turbocharger failure and/or damage that is a direct result of a lack of maintenance is not a matter for warranty. *Records of maintenance should always be confirmed.
you may have it mixed up with the turbo screen
Replyedgg71, May 16, 2012, 03:57Rookie
This is great but I am talking about the oil pickup tube under the crank at the bottom of the car. It seems there is a problem with the tube cracking and breaking. Thats the memo I need.