02-186-21

ATTENTION:
GENERAL MANAGER
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PARTS MANAGER
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CLAIMS PERSONNEL
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IMPORTANT - All
Service Personnel
Should Read and
Initial in the boxes
provided, right.
SERVICE MANAGER
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© 2021 Subaru of America, Inc. All rights reserved.
SERVICE INFORMATION BULLETIN
APPLICABILITY:
		
2020-21MY Legacy/Outback 2.4 DIT (Turbo)
2019-21MY Ascent
SUBJECT:
		
Scavenge Pump Installation- Service 			
Procedure Change
NUMBER: 02-186-21
DATE: 05/18/21
INTRODUCTION:
This Service Information Bulletin outlines changes in the service procedure for scavenge pump
assembly installation. A two-step torque procedure has been developed to ensure proper pump to
cylinder block contact and optimize sealing.
SERVICE PROCEDURE / INFORMATION:
REMINDER: Customer satisfaction and retention starts with performing quality repairs.
IMPORTANT PRECAUTIONS:
•
Confirm the mounting surfaces of the scavenge pump and the cylinder block are completely
clean.
•
DO NOT add any type of sealer between the scavenge pump and the cylinder block.
•
The Service Procedure for the scavenge pump removal remains unchanged: Engine >
LUBRICATION (H4DOTC) > Scavenge Pump > REMOVAL
STEP 1) Install NEW O-ring (p.n. 806912190).
STEP 2) Install the scavenge pump and temporarily tighten the bolts in a star pattern.
Initial tightening torque:
5.9 Nm (4.4 ft.-lbs. or 53 inch-lbs.)
Confirm the scavenge pump is properly seated to the cylinder block and final torque the bolts in a
star pattern.
		
Final tightening torque:
6.4 Nm (4.7 ft.-lbs. or 56 inch-lbs.)
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
ISO 14001 is 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.
Continued...
Bulletin Number: 02-186-21; Date: 05/18/21
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STEP 3) Install the oil jet.
Tightening torque:
6.4 Nm (4.7ft-lbs. or 56 inch-lbs.)
STEP 4) Reinstall the crank sprocket and related components in reverse order of removal: 			
MECHANICAL (H4DOTC) > Crank Sprocket > INSTALLATION.
STEP 5) Reconnect the ground cable terminal to battery sensor and torque to 7.5 Nm (5.5 ft.-lbs. or 		
66 inch-lbs.) while supporting the sensor with the other hand: STARTING / CHARGING 		
SYSTEMS (H4DOTC) > Battery Sensor.
The five (5) bolts shown in the illustration above are affected.
NOTE: No changes have been made to the Warranty Labor Time Guide for this procedure.
IMPORTANT REMINDERS:
•
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 check for any open recalls or campaigns anytime a vehicle is in for servicing.
•
Always refer to STIS for the latest service information before performing any repairs.
Bulletin Number: 02-186-21; Date: 05/18/21
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