99
[Reassemble]
Apply sealant (code No.977770-01212) and install the
mounting flange by matching the two dowel pins. After
assembly, raise the engine with its mounting flange on
the bottom side.
Unforeseen injury may arise due to falling of slipping
when raising or reversing the engine. Carefully operate
so as not to lose balance.
Point 4: Journal bearing cap
[Disassemble]
Before removing the journal bearing, measure the
crankshaft side gap. Measure it in either method
because there are the next two methods.
1) Install a dial gage on the cylinder block, and move a
crankshaft in front and back, and measure the side
gap as shown in the right figure.
2) Put a thickness gauge in the clearance between
thrust metal and crankshaft directly, and measure it.
Side gap standard mm
Model
Standard
Limit
All models
0.13 0.23
0.28
[Reassemble]
If the side gap exceeds the standard, replace the
thrust metal with an oversize one.
Machine the standard width of the crankshaft
thrust part into the dimension of the below table at
the same time.
Refer to a parts catalog when ordering the part.
The surface finishing precision (refer to 4.4.5(2) in
Chapter4):
0.25mm Oversized thrust metal (0.25DS) mm
0.25DS
Thrust metal assy code
Standard thickness
3IRH2N
119810-02940
2.055 2.105
3/4IRH8N
129150-02940
2.055 2.105
4IRI8N
129900-02940
2.055 2.105
The standard width of the crankshaft thrust part
mm
Model
Standard thickness
3IRH2N
25.250 25.271
3/4IRH8N
28.250 28.271
4IRI8N
32.250 32.275
