Mercury 40 Service Manual page 242
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- Service manual (584 pages) ,
- Maintenance and installation manual (120 pages) ,
- Manual (106 pages)
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Section 4B - Cylinder Block/Crankcase
Table of Contents
Specifications
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Crankshaft
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Checking Connecting Rod
Bearing Clearance
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Specifications
CYLINDER BLOCK
STROKE
CYLINDER BORE
PISTON
PISTON
CLEARANCE
RINGS
COMPRESSION
RATIO
PISTON PIN
90-828631R3 MARCH 1999
POWERHEAD
4B-1
4B-2
4B-4
4B-6
4B-8
4B-9
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4B-11
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4B-15
4B-18
4B-18
4B-19
4B-20
4B-21
4B-22
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4B-22
4B-24
Type
Displacement
Number of Cylinders
Length
Diameter
Standard
Oversize-0.020 in. (0.050 mm)
Taper/Out of Round Maximum
Bore Type
Piston Type
O.D. at Skirt
Standard
Oversize-0.020 in. (0.50mm)
Piston to Cylinder Clearance
Ring End Gap (Installed)
Top
Middle
Bottom (Oil Ring)
Side Clearance:
Top
Middle
Compression Ratio
Cylinder Compression (cold
engine @ W.O.T.)
Piston Pin Diameter
Thermostat
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Oil Pressure Switch
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4 Stroke Cycle - Over Head Camshaft
57 cu. in. (935cc)
2.953 in. (75 mm)
2.4803 in. (63.0mm)
2.5003 in. (63.5 mm)
0.003 in. (0.08 mm)
2.4783-2.4789 in. (62.950-62.965 mm)
2.4983-2.4989 in. (63.450-63.465 mm)
0.0014 - .0026 in. (0.035 - 0.065 mm)
0.006 - 0.012 in. (0.15 - 0.03 mm)
0.012 - 0.020 in. (0.30 - 0.50 mm)
0.008 - 0.028 in. (0.20 - 0.70 mm)
0.002 - 0.003 in. (0.04 - 0.08 mm)
0.001 - 0.003 in. (0.03 - 0.08 mm)
170 -190 lb./in
0.6285 - 0.6287 in. (15.965 - 15.970 mm)
4B-26
4B-26
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4B-27
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4B-27
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4B-28
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4B-29
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4B-29
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4B-30
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4B-30
4B-31
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4B-32
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4B-34
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4B-35
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4B-36
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4B-37
4B-43
4
Steel
Aluminum
9.8:1
2
(Peak)
Page 4B-1
4
B
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