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HOMESERVICE MANUALSACURA2018MDX BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE MECHANICALMECHANICALENGINE CONTROL AND ENGINE MECHANICAL - SERVICE, TESTING AND TROUBLESHOOTING (EXCEPT HYBRID)REPLACEMENTCONNECTING ROD BEARING REPLACEMENTREPLACEMENT
2018 Acura MDX Base

Connecting Rod Bearing Replacement: Replacement

2018 Acura MDX BaseSECTION Replacement
  1. Connecting Rod Cap and Bearing Half - Remove
  2. Connecting Rod Bearing Clearance - Inspect
    GHH319994Courtesy of HONDA, U.S.A., INC.
    		 1. Clean the connecting rod journal and the bearing half with a clean shop towel.

    2. Place plastigage across the rod journal.

    3. Reinstall the bearing half and the connecting rod cap, then torque the connecting rod bolt to 20 Nm (2.0 Kgf-m, 15 lbf.ft) + 90 °.

    • Apply new engine oil to the bolt threads and flanges.
    • Do not rotate the crankshaft during inspection.

    4. Remove the connecting rod cap and the bearing half, and measure the widest part of the plastigage.

    5. If the plastigage measures too wide or too narrow, remove the upper half of the bearing. Install a new, complete bearing with the same color code, and recheck the clearance. Do not file, shim, or scrape the bearings or the caps to adjust clearance.

    6. If the plastigage shows the clearance is still incorrect, try the next larger or smaller bearing (the color listed above or below that one), and check the clearance again. If the proper clearance cannot be obtained by using the appropriate larger or smaller bearings, replace the crankshaft 

    and start over.
    Connecting Rod Bearing-to-Journal Oil Clearance 
    Standard (New):  0.020-0.044 mm (0.00079-0.00173 in)
    Service Limit:  0.050 mm (0.00197 in) 
  3. Connecting Rod Bearing - Select
    Big End Bore Code Locations 
    GHH319995GHH319996GHH319997Courtesy of HONDA, U.S.A., INC.HONDA, U.S.A., INC.HONDA, U.S.A., INC.

    Connecting Rod Journal Code Locations 

    GHH319995GHH319996GHH319997Courtesy of HONDA, U.S.A., INC.HONDA, U.S.A., INC.HONDA, U.S.A., INC.
    RENDER: 1.0x

    NO RELATED

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    When to See a Mechanic

    Stop DIY work and contact a certified mechanic immediately if any of the following apply:

    • • You smell fuel, burning insulation, or see smoke.
    • • Brakes feel soft, pull hard to one side, or make grinding noises.
    • • The engine overheats, stalls repeatedly, or misfires under load.
    • • You are missing required tools, torque specs, or safe lifting equipment.
    • • You are not confident in the next step or safety outcome.