Home/Mercury/Mystique/Mercury Mystique I (1994-2000)/Repair manual/Mechanical/Engine - 2.5L V6 -Vin [L]: Specifications
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Engine - 2.5L V6 -Vin [L]: Specifications Mercury Mystique I

Crankcase Capacity

Refill with oil filter is 5.8 qts. (5.5L).

TORQUE SPECIFICATIONS

ApplicationFt. Lbs. (N.m)
A/C Compressor Bolt15-22 (20-30)
Alternator Bolt29-40 (39-54)
Alternator Mounting Bracket Bolts15-22 (20-30)
Axle Shaft Bracket-To-Cylinder Block Bolt15-23 (20-31)
Baffle Plate Nut15-22 (20-30)
Camshaft Rear Oil Seal Retainer Bolts(1)
Clutch Release Cylinder Nut7-14 (9-19)
Connecting Rod Bolt
Step 129 (40)
Step 2Additional 90 Degrees
Coolant Outlet Bolt15-22 (20-30)
Crankshaft Pulley Bolt
Step 189 (121)
Step 2Loosen Bolt 360 Degrees
Step 335-39 (47-53)
Step 4Additional 85-95 Degrees
Cylinder Head Bolt (2)
Step 127-32 (37-43)
Step 2Additional 85-95 Degrees
Step 3Loosen Bolt 360 Degrees
Step 427-32 (37-43)
Step 5Additional 85-95 Degrees
Step 6Additional 85-95 Degrees
EGR Valve Bolt15-22 (20-30)
Engine Mount Nuts
Step 17 (9)
Step 2(3)
Step 352-70 (70-95)
Engine Mount Through Bolts75-102 (102-138)
Engine-To-Transaxle Bolts25-34 (34-46)
Exhaust Manifold Nut13-16 (18-22)
Exhaust Pipe-To-Exhaust Manifold Nut26-33 (35-45)
Flywheel Bolt54-64 (73-87)
Front Cover Bolts/Studs15-22 (20-30)
Fuel Rail Bolt(1)
Intake Manifold Bolt(1)
Oil Pan Bolt15-22 (20-30)
Oil Pan-To-Transaxle Bolt25-34 (34-46)
Oil Pump Bolt(1)
Power Steering Pump Bolts15-22 (20-30)
Power Steering Pump Bracket Bolts29-40 (39-54)
Power Steering Pump Bracket Nut(1)
Power Steering Pump Pulley Bolts15-22 (20-30)
Shift Rod Bolt17 (23)
Spark Plug7-15 (9-20)
Stabilizer Bar Link Nut41 (55)
Steering Shaft Pinch Bolt18 (24)
Thermostat Housing Bolts13 (18)
Throttle Body Bolts/Stud(4)
Tie Rod Nut21 (28)
Timing Chain Guide Bolt15-22 (20-30)
Timing Chain Tensioner Bolt15-22 (20-30)
Torque Converter Nut54-64 (73-87)
Transaxle Mount Bolt/Nut40-55 (54-75)
Water Pump Bolt
Step 111-13 (15-18)
Step 2Additional 85-95 Degrees
Water Pump Drive Belt Tensioner(1)
Wheel Lug Nut85-105 (115-142)
Camshaft Bearing Cap Bolt (5)71-106 (8-12)
Crankshaft Position Sensor Bolt71-106 (8-12)
Valve Cover Bolt (6)71-106 (8-12)
Water Pump Pulley Bolt71-88 (8-10)
(1) Tighten bolt to 71-106 INCH lbs. (8-12 N.m). (2) Tighten bolts to specification, in reverse order of sequence shown. (Схема №5) (3) Lower engine to load mount. (4) Tighten bolt/stud to 44-62 INCH. lbs. (5-7N.m). Plus an additional 85-95 degrees. (5) Tighten bolts to specification in sequence. (Схема №13) (6) Tighten bolts to specification, in reverse order of sequence shown. (Схема №6)
(1)Tighten bolt to 71-106 INCH lbs. (8-12 N.m).
(2)Tighten bolts to specification, in reverse order of sequence shown. (Схема №5)
(3)Lower engine to load mount.
(4)Tighten bolt/stud to 44-62 INCH. lbs. (5-7N.m). Plus an additional 85-95 degrees.
(5)Tighten bolts to specification in sequence. (Схема №13)
(6)Tighten bolts to specification, in reverse order of sequence shown. (Схема №6)

TORQUE SPECIFICATIONS

ENGINE SPECIFICATIONS

ApplicationSpecification
Displacement153 Cu. In. (2.5L)
Bore3.25" (82.4 mm)
Stroke3.13" (79.5 mm)
Compression Ratio9.7:1
Fuel SystemSFI
Horsepower @ RPM170 @ 6250
Torque Ft. Lbs. @ RPM165 @ 4250

GENERAL SPECIFICATIONS

ApplicationIn. (mm)
Crankshaft End Play
Standard.004-.009 (.102-.229)
Service Limit(1)
Main Bearings
Journal Diameter2.467-2.479 (62.662-62.966)
Journal Out-Of-Round.0012 (.03)
Journal Taper.0012 (.03)
Oil Clearance
Standard.0009-.0018 (.023-.046)
Service Limit.0019 (.048)
Connecting Rod Bearings
Journal Diameter1.967-1.968 (49.962-49.987)
Journal Out-Of-Round.0012 (.03)
Journal Taper.0012 (.03)
Oil Clearance
Standard.0011-.0025 (.028-.064)
Service Limit(1)
(1) Information not available from manufacturer.
(1)Information not available from manufacturer.

CRANKSHAFT, MAIN & CONNECTING ROD BEARINGS

ApplicationIn. (mm)
Diameter.6294-.6300 (15.987-16.002)
Oil Clearance
Standard.0007-.0027 (.018-.069)
Service Limit.0006 (.015)

VALVE TAPPETS

ApplicationIn. (mm)
Pistons
Clearance
Standard.0005-.0009 (.013-.023)
Service Limit(1)
Diameter
Code 13.2436-3.2444 (82.390-82.410)
Code 23.2440-3.2449 (82.398-82.422)
Code 33.2444-3.2452 (82.410-82.430)
Pins
Diameter.8272-.8273 (21.011-21.013)
Piston Fit.0001-.0003 (.003-.008)
Rod Fit.0001-.0007 (.003-.018)
Rings
No. 1
End Gap.0039-.0098 (.100-.250)
Side Clearance
Standard.0015-.0029 (.040-.075)
Service Limit.0039 (.100)
No. 2
End Gap.0106-.0165 (.27-.42)
Side Clearance
Standard.0015-.0033 (.040-.084)
Service Limit.0039 (.100)
No. 3 (Oil)
End Gap.0059-.0255 (.15-.65)
(1) Information not available from manufacturer.
(1)Information not available from manufacturer.

PISTONS, PINS & RINGS

ApplicationIn. (mm)
Cylinder Bore
Standard Diameter
Code 13.2441-3.2445 (82.400-82.410)
Code 23.2445-3.2449 (82.410-82.420)
Code 33.2449-3.2453 (82.420-82.430)
Maximum Taper.0002 (.005)
Maximum Out-Of-Round.0007 (.018)
Maximum Deck Warpage(1)
(1) Information not available from manufacturer.
(1)Information not available from manufacturer.

CYLINDER BLOCK

ApplicationSpecification
Intake Valves
Face Angle45.5°
Head Diameter1.26" (32 mm)
Minimum Margin.031" (.787 mm)
Minimum Refinish Length(1)
Stem Diameter.2352-.2360" (5.974-5.994 mm)
Exhaust Valves
Face Angle45.5°
Head Diameter1.02" (26 mm)
Minimum Margin.031" (.787 mm)
Minimum Refinish Length(1)
Stem Diameter.2342-.2350" (5.949-5.970 mm)
Valve Springs
Free Length
Intake1.842" (46.8 mm)
Exhaust1.842" (46.8 mm)
Out-Of-Square1%
(1) Information not available from manufacturer.
(1)Information not available from manufacturer.

VALVES & VALVE SPRINGS

ApplicationIn. (mm)
Bore Diameter
Piston Pin Bore.827-.828 (21.016-21.032)
Crankpin Bore2.0872-2.0879 (53.015-53.033)
Maximum Bend.0014 Per .984 (.038 Per 25)
Side Play
Standard.0039-.0118 (.100-.300)
Service Limit.0137 (.350)

CONNECTING RODS

ApplicationSpecification
Cylinder Head Height(1)
Maximum Warpage(1)
Manifold Surface(1)
Valve Seats
Seat Angle44.75°
Valve Seat Width
Exhaust.055-.066" (1.40-1.68 mm)
Intake.043-.055" (1.10-1.40 mm)
Valve Guides
Intake Valve
Valve Guide I.D.(1)
Valve Guide Installed Height(1)
Valve Stem-To-Guide Oil Clearance
Standard.0007-.0027" (.018-.069 mm)
Service Limit(1)
Exhaust Valve
Valve Guide I.D.(1)
Valve Guide Installed Height(1)
Valve Stem-To-Guide Oil Clearance
Standard.0017-.0037" (.043-.094 mm)
Service Limit(1)
(1) Information not available from manufacturer.
(1)Information not available from manufacturer.

CYLINDER HEAD

ApplicationIn. (mm)
End Play
Standard.0010-.0064 (.025-.163)
Service Limit.0074 (.190)
Journal Diameter
All Journals1.060-1.061 (26.924-26.949)
Journal Runout(1)
Lobe Lift (Intake & Exhaust)
Standard.188 (4.78)
Service Limit.187 (4.75)
Oil Clearance (All Journals)
Standard.0010-.0030 (.025-.076)
Service Limit.0047 (.120)
(1) Information not available from manufacturer.
(1)Information not available from manufacturer.

CAMSHAFT