L-Series Wagon 4WD F4-1781cc 1.8L SOHC Turbo (MPFI) (1985)
Oil Line: Technical Service Bulletins
Engine - Turbocharger Oil Supply Mesh Screen
NUMBER: 02-103-07R
DATE: 10/29/07
APPLICABILITY:
All Turbo Equipped Vehicles
SUBJECT:
Turbocharger Oil Supply Mesh Screen
INTRODUCTION
This bulletin is for informational purposes only
Turbocharged engines require proper maintenance especially when the vehicle is used under severe driving conditions such as moderate to hard
acceleration and engine braking on a somewhat regular basis.
In any case, it is recommended that the engine oil and filter be changed every 3,750 miles (6,000 km) or 3~3/4 months.
In addition, the mesh screen which is located inside the banjo bolt that secures the turbocharger oil supply pipe to the back of the right side cylinder head
should be checked to make sure it is not clogged or restricted especially if the condition of the oil is questionable or as to when the last oil change was
performed. If clogged or restricted, it will reduce or cut off the oil supply to the turbo resulting in failure The oil supply pipe should also be checked to
make sure that there are no obstructions. Note: The mesh screen is only available with a replacement banjo bolt
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Make sure the mesh screen is installed in the proper direction; incorrect installation will cut off oil supply to the turbo.
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Do not confuse the oil supply mesh screen with the Active Valve Control System (AVCS) union screw filter Refer to Service Bulletin 02-97-05 dated
10/06/05.
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When the vehicle is used under severe driving conditions, the engine oil is consumed more quickly than under normal driving conditions due to high
intake manifold vacuum during engine braking and higher temperatures; the engine oil level should be checked at every fuel fill up. For additional
examples of severe driving conditions~ refer to the Warranty & Maintenance Booklet.
Disclaimer