LEMON Manuals: Even more car manuals for everyone
Home >> Suzuki >> 2001 >> XL-7 Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 58 (2.5L V6) >> Overhaul >> Cylinder Block Assembly >> Crankshaft And Main Bearings

Crankshaft And Main Bearings

WARNING: This page is about a different car, the 2003 Suzuki Grand Vitara and 2002 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove engine. See ENGINE  under REMOVAL & INSTALLATION. Remove timing chain cover. See TIMING CHAIN COVER & FRONT OIL SEAL . Remove No. 1 and No. 2 timing chains and chain tensioners. See RIGHT (NO. 2) BANK 2ND TIMING CHAIN & CHAIN TENSIONER  and LEFT (NO. 1) BANK 2ND TIMING CHAIN & CHAIN TENSIONER  . Remove camshaft position sensor. Remove camshaft and valve lash adjuster. See CAMSHAFT AND VALVE LASH ADJUSTER . Remove exhaust manifold. See EXHAUST MANIFOLD . Remove flywheel and oil pan. Remove rear main oil seal. Remove connecting rod caps. Remove main bearing bolts. Remove lower crankcase. Remove crankshaft.
  2. Inspect journals for wear, taper and out-of-round. If specifications are exceeded, grind journals to undersize or replace crankshaft. See CRANKSHAFT, MAIN & CONNECTING ROD BEARINGS  table under ENGINE SPECIFICATIONS. Inspect bearings for pitting, scratches, wear and damage.
  3. Main bearing journal diameter is determined by numerical mark ("1", "2" or "3") stamped on crank web. See Fig 1. See MAIN BEARING JOURNAL DIAMETER  table.
  4. Bearing cap bore diameter is determined by letters stamped on lower crankcase. See Fig 2. Letter represents bearing cap bore diameter. See LOWER CRANKCASE BEARING CAP BORE DIAMETER  table.
  5. Standard main bearings are color-coded. See Fig 3. Color indicates thickness of bearing. See COLOR CODE FOR STANDARD BEARING  table. Five standard main bearings are available.
  6. From number stamped on crank web No. 2 and letters stamped on lower crankcase, determine new standard bearing to be installed to journal. See STANDARD BEARING APPLICATION  table.
    Fig 1: Locating Main Bearing Marks
    G00010552Courtesy of SUZUKI OF AMERICA CORP.
    MAIN BEARING JOURNAL DIAMETER

    Stamped Numbers Journal Diameter - In. (mm)
    "1" 2.5588-2.5590 (64.994-64.999)
    "2" 2.5586-2.5588 (64.988-64.994)
    "3" 2.5583-2.5586 (64.981-64.988)
    Fig 2: Locating Lower Crankcase Diameter Marks
    G00010548Courtesy of SUZUKI OF AMERICA CORP.
    LOWER CRANKCASE BEARING CAP BORE DIAMETER

    Stamped Letter Diameter (Without Bearing) - In. (mm)
    "A" 2.7559-2.7561 (69.999-70.005)
    "B" 2.7561-2.7563 (70.005-70.010)
    "C" 2.7563-2.7566 (70.010-70.018)
    COLOR CODE FOR STANDARD BEARING

    Paint Color Bearing Thickness - In. (mm)
    Green .0982-.0983 (2.494-2.497)
    Black .0983-.0984 (2.497-2.499)
    Colorless (No Paint) .0984-.0985 (2.499-2.502)
    Yellow .0985-.0986 (2.502-2.504)
    Blue .0986-.0987 (2.504-2.507)
    STANDARD BEARING APPLICATION

    Letter Stamped On Lower Crankcase Number 1 Stamped On Crank Web Number 2 Stamped On Crank Web Number 3 Stamped On Crank Web
    A Green Black Colorless
    B Black Colorless Yellow
    C Colorless Yellow Blue
    Fig 3: Identifying Standard & Undersize Bearing Color Marks
    G96I18562Courtesy of SUZUKI OF AMERICA CORP.
scientia non olet · About LEMON Manuals