Auto Parts Search
Mitsubishi Galant Engine >> CYLINDER HEAD BOLT TORQUE FOR 4 & 6 G MITSUBISHI ENGINES
Cylinder Head Bolt Tightening Caution For
1992-1996 Mitsubishi 4G & 6G Series Engines
The AERA Technical Committee offers the following information regarding cylinder head bolt tightening caution on 1992-1996 Mitsubishi 4G & 6G series engines. Information previously published in the OEM service manuals was incorrect and the following specifications should be used.
Installing non-elastic head bolts use the following torque values for vehicles/engine.
For torque sequence see Figure 1 to tighten in three steps use the bolt tightening sequence, if applicable. Refer to sequence chart. Note: Designations such as Turbo, Non-Turbo, SOHC and DOHC are only used if these items cause variations to the torque information of the engine.
Years Models Engine Torque
1992-95 Mirage thru May 1995 4G1 / 1.5L 53 ft/lbs (73 Nm)
1992-94 Eclipse 4G3 / 1.8L 53 ft/lbs (73 Nm)
1992 Eclipse, Galant 4G6 / 2.0L 80 ft/lbs (108 Nm) DOHC
1992 Galant, Expo & Truck 4G6 / 2.4L 80 ft/lbs (108 Nm) SOHC
1995 Galant 4G6 / 2.5L 80 ft/lbs (108 Nm) SOHC
1992-95 Truck, Montero, Galant 6G7 / 3.0L 80 ft/lbs (108 Nm) SOHC
1993-95 Diamante Wagon 6G7 / 3.0L 80 ft/lbs (108 Nm) SOHC
1992-95 Diamante & 3000 GT 6G7 / 3.5L 80 ft/lbs (108 N m) DOHC non-Turbo
1992-95 3000 GT 6G7 / 3.0L 91 ft/lbs (123 N m) DOHC Turbo *
* Loosen all bolts and retighten to 91 ft/lbs.
1994-95 Montero 6G7 / 3.5L 80 ft/lbs (108 N m) DOHC Turbo
Figure 1. Cylinder Head bolt torque Sequence
Installing Elastic Head Bolts (plastic-angle tightening method).
Before reusing head bolts measure the shank lengths of ALL the head bearing bolts, if measurement of (see below) exceeded or the bolt has visual damage REPLACE THE BOLTS. Measure from the tip to the shoulder under the bolt head (not to the shoulder of the washer). See Figure 2
1995-96 Mirage after 5/95 4G9 / 1.5L ** 4.063" (103.200 MM) SOHC 16Valve
1993-96 Mirage 4G9 / 1.8L *** 3.795" (96.400 MM) SOHC 8Valve
1992-95 Expo LRV 4G9 / 1.8L 3.795" (96.400 MM) SOHC 8Valve
1993-96 Eclipse 4G6 / 2.0L 3.913" (99.400 MM) S & D 16 Valve 1993 Galant 4G6 / 2.0L 3.913" (99.400 MM) S & D 16 Valve
1993-95 Expo, Expo LRV & Truck 4G6 / 2.4L 4.740" (120.400 MM) SOHC 8 Valve
1994-96 Galant 4G6 / 2.4L 4.740" (120.400 MM) SOHC 8 Valve
Figure 2. Cylinder Head Bolt Shank Measurement
For torque sequence see Figure 3 to tighten elastic head bolts using the plastic/angle tightening method; the following procedure is applicable to all the engines listed below.
Step 1; Torque all bolts (in sequence) to specification 58 ft/lbs (78 Nm). ***
Step 2, Loosen all bolts fully.
Step 3, Tighten all bolts to 14 ft/lbs (20 Nm).
Step 4, Tighten using a breaker bar (not a torque wrench) 90° rotation.
Step 5, Repeat step four.
Note: ** For the 1995-96 Mirage after 5/95 initial torque is a lower value Step one Torque all bolts (in sequence) to specification 34 ft/lbs (49 Nm).
*** For the 1993-96 Mirage & 1992-95 Expo LRV initial torque is a lower value Step one Torque all bolts (in sequence) to specification 54 ft/lbs (74 Nm).
Figure 2. Cylinder Head Bolt Shank Measurement
Figure 3. Cylinder Head Bolt Torque Sequence.
The AERA Technical Committee
Looking for replacement Mitsubishi Galant engines? Visit our online Rebuilt Engines Store. Need to fix your Mitsubishi Galant engine? Access here the comprehensive online repair guide for your Mitsubishi Galant engine. Click Here to find a used Mitsubishi Galant engine.
Shop online for auto body parts, engines, wheels, lights...
|2001 Mitsubishi Galant Mirror, Driver Side, This OE replacement mirror is black and made of the highest quality, rust and corrosion resistant materials to withstand all types of weather. Item is backed by 2-year Kool Vue limited warranty.</p><p><b><i>Specifications:</i></b><li>Flat glass</li></ul></p><p><b>Kool Vue</b> specializes in producing mirrors for all vehicle makes and models; our mirrors go through rigorous testing that includes 35,000 hours of Weather Testing, 500 Swing Tests and Impact, Pull Tension, Reflection and Vibration testing to make sure you purchase the highest quality mirrors. You can't go wrong with Kool Vue Mirrors!</p>.||$20.66|
|2003 Mitsubishi Galant Tail Light, Driver Side, Bulbs included; DOT and SAE approved; A high quality, OE replacement tail light assembly; Backed by 1-year, unlimited-mileage warranty..||$98.81|
|2002 Mitsubishi Galant 16" x 6" Steel Wheel, Steel Wheel; 16 X 6; 15 Holes; 5 Lug; 4.5 Inch BP; Black, , .||$69.50|
|1998 Mitsubishi Galant ES L4, 2.4 L, 2351 CC Rebuilt Engine, Warranty: 3-Year/100,000 Mile, .||Ad Hoc|
|2004 Mitsubishi Galant Used Parking Lamp, Driver Side, L, Fog/Driving; (bumper) bp, Good.||$56.00|
|2001 Mitsubishi Galant Used Rear Lower Control Arm, Passenger Side, 3.0, AUTO, FWD Trailing Arms; Coupe, Very Good.||$69.00|