Auto Parts Search


      Over 40 million used auto parts online. Shop online for auto and truck parts and save up to 75%

Mitsubishi Engine >> CYLINDER HEAD BOLT TORQUE FOR 4 & 6 G MITSUBISHI ENGINES

    Automotive Domain Names


    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
    & Diamante
    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 engines? Visit our online Rebuilt Engines Store. Need to fix your Mitsubishi engine? Access here the comprehensive online repair guide for your Mitsubishi engine. Click Here to find a used Mitsubishi engine.

    Shop online for auto body parts, engines, wheels, lights...

    Click here to view more details2001 Mitsubishi Mirage Mirror, Driver Side.

    Source: Auto Body Parts Store

    $44.13

    Click here to view more details about 1999 Mitsubishi Eclipse Tail Light1999 Mitsubishi Eclipse Tail Light, High Quality D.O.T Approved Lamps Are Easy To Install, They Simply Plug Into Existing Wiring Harnesses, They Are A Great Replacement For Faded Factory Lamps, Come With Manufacturer's Limited Warranty.

    Source: Auto Body Parts Store

    $143.70

    Click here to view more details about 2006 Mitsubishi Outlander Tail Light Assembly, Passenger Side2006 Mitsubishi Outlander Tail Light Assembly, Passenger Side, PASSENGER SIDE TAIL LIGHT ASSEMBLY, FOR "LIMITED" MODELS , , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $114.45

    Click here to view more details1989 Mitsubishi Mighty Max Lwb L4, 2.6 L, 2555 CC, 156 CID Rebuilt Engine, RWD, OHC, non turbo, 13 1/2" between bell housing dowel pin centers, (supplied with new head casting)., Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,745.00

    Click here to view more details2000 Mitsubishi Mirage Used Rear Vent Window, Passenger Side, Very Good.

    Source: Used Auto Parts Store

    $76.00

    Click here to view more details2003 Mitsubishi Outlander Used A/C Compressor, 2.4, AUTO, AWD, Very Good.

    Source: Used Auto Parts Store

    $184.00
    More parts
    Help me findSearch
    Auto Repair Quick Search
    Help me find
    Search DIY repair manuals by VIN...
    Vehicle Identification Number is a unique serial number used by the automotive industry to identify individual motor vehicles

    Find out what info we have for your vehicle

    Get the Complete Technical Service Bulletins!
    Get the Complete Technical Service Bulletins!Access diagrams and repair information such as wiring diagrams, diagnosis and repair charts, manufacturer service bulletins, and OEM Part numbers of your Mitsubishi vehicle.
    Access the Complete guide!
    Need To Fix Your Car or Truck?
    Save Money With Free Car Insurance Quote
    FREE car insurance quote
    Enter Zip Code:
    GOT A WEBSITE?Make money with Automotix

    Make money with Automotix Partner Program.

    Learn more

    Auto Repair Quick Search
    Help me find