Mercury 6 SERIES - Page 7

SPECIFICATIONS
90-857138R1 MAY 2000 Page 1A-3
FUEL
SYSTEM
Fuel Pump Type
Fuel Pump:
Pressure
Plunger Stroke
Diaphragm Stroke
Fuel Tank Capacity
External (Plunger/Diaphragm)
2.5 - 5.0 psi (17 - 35 kPa)
0.059 in. (1.5 mm)
0.059 in. (1.5 mm)
3.2 US Gallons
CYLINDER
BLOCK
Type
Displacement
Number of Cylinders
4 Stroke Cycle – Over Head Valve
7.5 cu. in. (123 cc)
1
STROKE Length 1.77 in. (45 mm)
CYLINDER
BORE
Diameter
Standard
Oversize-0.020 in. (0.50 mm)
Taper/Out of Round Maximum
Bore Type
2.323 in. (59.00 mm)
2.343 in. (59.50 mm)
0.003 in. (0.076 mm)
Steel
PISTON
Piston Type
O.D. at Skirt
Standard
Oversize-0.020 in. (0.50 mm)
Aluminum
2.321 in. (58.960 mm)
2.341 in. (59.460 mm)
PISTON
CLEARANCE
Piston to Cylinder Clearance
Piston Clearance Limit
0.001 - 0.002 in.
(0.020 - 0.055 mm)
0.006 in. (0.15 mm)
RINGS
Ring End Gap (Installed)
Top
Middle
Bottom (Oil Ring)
Side Clearance:
Top
Middle
Bottom (Oil Ring)
0.006 - 0.014 in. (0.15 - 0.35 mm)
0.012 - 0.020 in. (0.30 - 0.50 mm)
0.008 - 0.016 in. (0.20 - 0.40 mm)
0.0015 - 0.003 in. (0.04 - 0.08 mm)
0.0012 - 0.003 in. (0.03 - 0.07 mm)
0.0004 - 0.007 in. (0.01 - 0.18 mm)
COMPRESSION
RATIO
Compression Ratio
With Decompression
4/5 (1999 & 2000)
4/5 (2001 & Newer)
6 (2000 & Newer)
8.5:1
42 psi ± 14 psi (0.29 ± 0.1 MPa)
9.5:1
42 psi ± 14 psi (0.29 ± 0.1 MPa)
PISTON PIN
Outer Diameter
Diameter of Piston Pin Hole
Clearance between Piston Pin and
Piston Pin Hole
0.6299 in. (16.00 mm)
0.6300 in. (16.002 mm)
0.0001 - 0.0005 in.
(0.002 mm - 0.012 mm)
CONNECTING
ROD
Oil Clearance (Big End)
Side Clearance (Big End)
Small End Inside Diameter
0.002 - 0.003 in. (0.053 - 0.079 mm)
0.008 - 0.016 in.
(0.20 - 0.40 mm)
0.6303 in. (16.01 mm)