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Engine - 3.0L 2V: Overhaul Mercury Sable IV

Mechanical 1 illustration

Overhaul Specifiations

DescriptionSpecification
General Specifications
Displacement3.0L
Number of cylinders6
Bore89.00 mm (3.50 in)
Stroke80.00 mm (3.14 in)
Firing order1-4-2-5-3-6
Oil pressure (Hot 2500 rpm)276-414 kPa (40-60 psi)
Cylinder head and valve train
Combustion chamber volume47.1-50.1 3 cm (2.874 in) 3
Valve guide bore diameter
Intake and Exhaust7.042 - 7.017 mm (0.2772 - 0.2763 in)
Valve seats
Width-Intake1.5-2.0 mm (0.06-0.08 in)
Width-Exhaust2.0-2.5 mm (0.08-0.10 in)
Angle45 degrees
Runout (T.I.R.)0.078-0.098 mm (0.003-0.004 in)
Bore diameter (insert counterbore diameter)
Intake47.097 mm (1.8542 in) MAX 47.072 mm (1.8532 in) MIN
Exhaust39.730 mm (1.5645 in) MAX
Gasket surface flatness0.08 mm (0.003 in) over 152.0 mm (6.00 in)
Valve stem to guide clearance
Intake0.026-0.071 mm (0.001-0.0028 in)
Exhaust0.038-0.083 mm (0.0015-0.0033 in)
Valve head diameter
Intake40.0 mm (1.57 in)
Exhaust33.0 mm (1.30 in)
Valve face runout limit0.05 mm (0.002 in)
Valve face angle45 degrees
Valve stem diameter (STD)
Intake6.971-6.991 mm (0.2744-0.2752 in)
Exhaust6.959-6.979 mm (0.2740-0.2748 in)
Oversize
Intake7.351-7.371 mm (0.289-0.290 in)
Exhaust7.339-7.359 mm (0.289-0.290 in)
Oversize
Intake7.731-7.751 mm (0.304-0.305 in)
Exhaust7.719-7.739 mm (0.304-0.305 in)
Valve springs
Compression pressure (N [ @ Spec Length)
Valve open to maximum lift857.0 - 967.0 N (193 - 2171b) 29.74 mm (1.17 in)
Valve closed285 - 323 N (64 -721b) 40.52 mm (1.60 in)
Free length (approximate)46.4 mm (1.83 in)
Installed spring height41.98-44.17 mm (1.650-1.736 in)
Service limit10% Force Loss @ Specified Height
Rocker Arm
Ratio1:61
Valve tappet, hydraulic
Diameter (Std)22.206 mm (0.874 in)
Clearance to bore0.018-0.069 mm (0.0007-0.0027 in)
Service limit0.127 mm (0.005 in)
Leakdown rate20-200 seconds to leakdown 3.18 mm (0.125 in) with 225 N (50 lbs) load and tappet filled with leak-down fluid.
Collapsed tappet gap (nominal)
Intake2.23-4.77 mm (0.088-0.189 in)
Exhaust2.23-4.77 mm (0.088-0.189 in)
Camshaft position sensor shaft bearing bore diameter
Tappet bore diameter22.230-22.268 mm (0.8752-0.08767 in)
Camshaft bore inside diameter
No. 154.688-54.713 mm (2.1531-2.1541 in)
No. 254.188-54.213 mm (2.1334-2.1344 in)
No. 354.188-54.213 mm (2.1334-2.1344 in)
No. 454.688-54.713 mm (2.1531-2.1541 in)
Camshaft
Lobe lift
Intake6.38 mm (0.251 in)
Exhaust6.72 mm (0.264 in)
Allowable lobe lift loss0.127 mm (0.005 in)
Theoretical valve lift @ zero lash
Intake10.26 mm (0.404 in)
Exhaust10.77 mm (0.424 in)
End play
Service limit0.003 mm (0.007 in)
Journal to bearing clearance
Clearance0.025-0.076 mm (0.001-0.003 in)
Journal diameter
All50.987-51.013 mm (2.0074-2.0084 in)
Cam bearing I.D.51.038-51.063 mm (2.0094-2.0104 in)
Runout limit0.05 mm (0.002 in) Runout of #2 or #3 relative to #1 and #4
Out-of-round limit0.025 mm (0.001 in)
Cylinder block
Head gasket surface flatness0.08 mm (0.003 in) 152.0 mm (6.00 in)
Head gasket surface finish (RMS)1.0-3.3 Micrometers
Cylinder bore
Diameter89.00 mm (3.504 in)
Surface finish (RMS)0.45-0.96 micrometers
Out-of-round limit0.025 mm (0.001 in)
Out-of-round service limit0.050 mm (0.002 in)
Taper service limit0.050 mm (0.002 in)
Main bearing bore diameter68.905 mm (2.713 in) 68.885 mm (2.712 in)
Crankshaft and flywheel
Main bearing journal diameter
63.983-64.003 mm (2.5190-2.5198 in)
Out-of-round limit0.0003 in
Taper limit0.06 mm (0.0006 in) Total 0.013 mm (0.0003 in) per 25 mm (1 in)
Journal runout limit0.05 mm (0.002 in)
Surface finish (RMS)0.25 micrometers (10.0 micro in)
Thrust bearing journal
Length25.775-25.825 mm (1.0148-1.067 in)
Connecting rod journal
Diameter53.983-54.003 mm (2.1253-2.1261 in)
Out-of-round limit0.006 mm (0.0003 in) MAX 0.015 mm (0.0006 in) TOTAL
Taper limit0.008 mm per 25 mm (0.0003 in per in)
Surface limit (RMS)0.25 micrometers
Main bearing thrust face
Surface finish (RMS)0.4 micrometers
Runout limit0.025 mm (0.001 in)
Flywheel ring gear lateral runout (T.I.R.)
Automatic transmission1.778 mm (0.07 in)
Crankshaft end play0.10-0.20 mm (0.004-0.008 in)
Connecting rod bearings
Clearance to crankshaft
Desired0.025-0.035 mm (0.001-0.0014 in)
Allowable0.020-0.066 (0.00086-0.0027 in)
Bearing wall thickness (Std)1.557-1.570 mm (0.0612-0.0618 in)
Main bearings
Clearance to crankshaft
Desired0.025-0.035 mm (0.001-0,0014 in)
Allowable0.020-0.066 mm (0.0005-0.0023 in)
Bearing wall thickness2.444-2.481 mm (0.0962-0.0976 in) 1st and 2nd 2.49-2.427 mm (0.0980-0.0955 in) 3rd and Rear
Connecting rod, piston and rings
Connecting rod
Piston pin bore diameter23.105-23.145 mm (0.9096-0.9112 in)
Crankshaft bearing bore diameter(2.250-2.251 in) 57.15-57.17 mm
Length (center-to-center)(5.530-5.533 in) 140.46-140.54 mm
Alignment (bore-to-bore max. diff.)
Twist0.075 per 25 mm (0.003 per in)
Bend0.04 per 25 mm (0.0016 per in)
Side clearance (assembled to crank)
Standard0.15-0.35 mm (0.006-0.014 in)
Service limit0.36 mm MAX (0.014 in MAX)
Piston
Diameter
Coded red88.962-88.978 mm (3.5024-3.5031 in)
Coded blue88.988-89.004 mm (3.5035-3.5041 in)
Coded yellow89.014-89.030 mm (3.5045-3.5051 in)
Piston-to-bore clearance0.030-0.056 mm (0.0012-0.0022 in)
Service limit0.081 mm (0.031 in) Max
Service piston selection (1)
Piston bore diameterService piston grade required
Red89.009-89.035 mm (3.5043-3.5053 in)
Blue89.035-89.060 mm (3.5053-3.5063 to)
Yellow89.060-89.086 mm (3.5063-3.5073 in)
Ring groove width
Compression (top)1.530-1.555 mm (0.06O2-0.0612 in)
Compression (bottom)1.530-1.555 mm (0.0602-0.0612 in)
Oil4.030-4.055 mm (0.1587-0.1596 in)
Piston pin
Length57.12-57.88 mm (2.248-2.278 in)
Diameter23.162-23.175 mm (0.9119-0.9124 in)
Pin to piston clearance0.005-0.012 mm (0.002-0.0005 in)
Pin to rod clearancePress Fit 4 Kilonewtons (900 lbs)
Piston rings - ring width
Compression (top)1.460-1.490 mm (0.0575-0.0587 in)
Compression (bottom)1.460-1.490 mm (0.0575-0.0587 in)
Oil ringSide Seal-Snug Fit
Service limitSide Clearance 0.015 mm MAX (0.0006 in MAX)
Ring gap
Compression (top) (in gauge)0.25-0.50 mm (0.01-0.02 in)
Compression (bottom) (in gauge)0.25-0.50 mm (0.01-0.02 in)
Oil ring (steel rail) (in gauge)0.25-1.25(0.010-0.049 in)
Side clearance
1st ring0.040-0.095 mm (0.0016-0.0037 in)
2nd ring0.040-0.095 mm (0.0016-0.0037 in)
Lubrication system
Oil pump
Relief valve spring tension (force @ length)44.9-40.5 N (10.1-9.1 lb) @ 28.2 mm (1.11 in)
Relief valve to bore clearance0.073-0.043 mm (0.0029-0.0017 in)
Oil pump gear backlash0.02-0.03 mm (0.008-0.012 in)
Oil pump gear radial clearance
(Idler and driver)0.125-0.050 mm (0.0055-0.002 in)
Oil pump gear height clearance0.069-0.039 mm (0.0027-0.0015 in)
Idler shaft to idler gear clearance0.069-0.039 mm (0.0027-0.0015 in)
Driver shaft to housing clearance0.073-0.038 mm (0.0019-0.0005 in)
Oil capacity4.25 Liters (4.5 Quarts) with filter change
(1) When replacing pistons, measure the cylinder bore as described in ENGINE SYSTEM GENERAL INFORMATION article. Install the indicated service piston.
(1)When replacing pistons, measure the cylinder bore as described in ENGINE SYSTEM GENERAL INFORMATION article. Install the indicated service piston.

Engine Specifications

Scheme 890

Scheme 890: Belt Tension & General Specificaitons (Oil & Sealants)
ItemSpecification
Silicone Gasket and Sealant F7AZ-19554-EAWSE-M4G323-A4
Pipe Sealant w/Teflon® D8AZ-19954-AWSK-M2G350-A2
Super Premium SAE 5W-20 Motor Oil XO-5W20-QSPWSS-M2C153-H
Gasket Maker F8AZ-19B508-ABWSK-M2G348-A5
Weatherstrip Adhesive E8AZ-19552-AESB-M2G14-A

General Specifications