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There are two types of oil jets installed.
one for No.1 and 3 and the other for N0.2 and 4.
Make sure that the correct one is installed with correct direction as shown.
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1.When the bearing needs replacing, select a proper bearing by the following procedure.
| note |
If the crankshaft is machined to an undersized, bearings for undersized crankshaft should
be used and therefore the following selection procedure is unnecessary.
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(1)
Measure the crankshaft journal diameter and confirm its classification from the following
table. In the case of a crankshaft supplied as a service part, identification colors and marks
of its journals and painted at the positions shown in the illustration.
(2)
The cylinder block bore diameter identification marks are stamped at the position shown
in the illustration from front to rear beginning at No.1.
(3)
Select proper bearings from the below table on the basis of the identification data confirmed
under Items (1) and (2).
Example
- If the measured value of a crankshaft journal outer diameter is 65.997 mm, the journal
is classified as "1" or "Yellow" in the table. In case the crankshaft is also replaced by a
spare part, check the identification colors of the journals painted on the new crankshaft.
- Next, check the cylinder block bearing bore identification mark stamped on the cylinder
block. If it is "A" read the "Bearing identification mark" column to find the identification mark
of the bearing to be used. In this case, it is "1" or "Green"
Combination of crankshaft journal diameter and cylinder
block bearing bore diameter
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Bearing identification mark
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Crankshaft journal Classification
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Cylinder block bearing bore diameter identification
mark
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Identification color or mark
Using both ID (mark and color) or either one
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O.D. mm
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1
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Yellow
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65.994 - 66.000
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A
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1 or Green
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B
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2 or Yellow
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C
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3 or None
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2
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None
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65.988 - 65.994
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A
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2 or Yellow
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B
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3 or None
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C
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4 or Blue
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3
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White
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65.982 - 65.988
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A
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3 or None
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B
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4 or Blue
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C
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5 or Red
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2.Crankshaft bearing
(1)
Install the bearings having an oil groove to the cylinder block.
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| note |
The No. 3 bearing integrated with thrust bearing has no oil groove.
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(2)
Install the bearings having no oil groove to the bearing cap.
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3.Crankshaft thrust bearing installation
(1)
Install the two thrust bearing in the number 3 bearing bore in the cylinder block.
For easier installation, apply engine oil to the bearings; this will help hold them in position.
(2)
The thrust bearings must be installed with their groove side toward the crankshaft
web.
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1.Install according to the front mark and cap No.
2.Apply engine oil to the threaded portion and seating face of the bolt.
3.Tighten the bearing cap bolts in the illustrated sequence to 40 ± 2 N·m.
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| caution |
- When the tightening angle is smaller than
the specified tightening angle, the appropriate tightening capacity cannot be secured.
- When the tightening angle is larger than the specified tightening angle, remove
the bolt to start from the beginning again according to the procedure.
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4.Using the special tool Angle gauge (MB991614), tighten the bearing cap bolts in the
illustrated sequence by a further 35° to 39°.
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5.After installing the bearing caps, make sure that the crankshaft turns smoothly and the
end play is correct. If the end play exceeds the limit, replace crankshaft bearings.
Standard value: 0.05 - 0.25 mm
Limit: 0.45 mm
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1.Apply oil to oil seal lips.
2.Using the special tool Oil seal installer (MD992147), Press and fit the oil seal into
the oil seal case to have the dimension shown in the illustration.
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1.Remove completely old FIPG remaining on the rear oil seal case and cylinder block.
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2.Apply a bead of FIPG to the surface of the rear oil seal case as shown in the drawing.
Specified sealant:
Three bond 1217G or equivalent
| note |
Be sure to install the case quickly while the sealant is wet (within 15 minutes).
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3.Install the oil seal into the cylinder block after applying an appropriate amount
of engine oil to the entire circumference of its lip portion.
4.Install the rear oil seal case by tightening its bolts to 11 ± 1 N·m.
| note |
After installation, keep the sealed area away from the oil for approximately one hour.
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