Clevite 77 Bearings ROD BEARING

Note: The rod end bearings have lubrication and self-lubrication type.

Sealed Power 82555A Rod Bearing Set

$27.32
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  • When using Plastigage to check rod-bearing clearance, install rod bearings onto the rod and rod cap. Install the rod onto the crank’s rod journal (make sure rods are in correct order) with fillet chamfer sides facing journal fillets. Following the procedure we’ve already discussed, lay a piece of Plastigage onto the exposed rod journal, install the rod cap and tighten, then remove the cap and measure the Plastigage. Again-and we need to stress this point-do not allow the crankshaft to rotate when Plastigage is in place. The crank must remain stationary.

    Next, measure the crankshaft journal (for that specific bearing location) with a micrometer. Subtract the journal diameter from the installed bearing ID to determine bearing oil clearance. A good rule of thumb dictates that you should have about .001 inch of clearance per inch of shaft diameter. For instance, if a main journal outer diameter measures 2.375 inches, then you should have about .0024-inch clearance. In order to provide a slight margin of safety (especially for rod bearing locations), you can add an additional .0005-inch clearance.

  • V-Series
    The V-series rod bearings typically feature a low to medium eccentricity and provides a hardened steel back. For applications involving crankshafts with large fillets, narrowed bearings are available (under a VN suffix) to accommodate increased crankshaft fillet clearance. The primary difference between the V-series and other Clevite 77 TriMetal bearings is the use of a lead-indium overlay. A lead indium overlay offers a slightly better conformability than a lead/tin/copper overlay, along with slightly reduced wear resistance.

    Plastigage is available in four different sizes for checking vertical oil clearances on main and rod bearing locations. Each package features a handy measuring scale printed in both inches and millimeters. Strips are also color coded for easy size range identification.

    #3224369 - 12/22/13 08:04 AM Re: Rod Bearing Failure Analysis [Re: Taylor]
    Taylor


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  • #3224369 - 12/22/13 08:04 AM Re: Rod Bearing Failure Analysis [Re: Taylor]
    Taylor


    Registered: 03/26/08
    Posts: 477
    Loc: VA
    View My Video
    _________________________
    Standard Produce Co.
    Serving Central VA Since 1910

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    H-series rod and main bearings provide maximum crush and a medium level of eccentricity with a hardened steel back. Rod bearings also have a thin overlay. One very notable feature of the H-series bearings is a narrowed width to provide greater crankshaft fillet clearance. If your crankshaft features large fillets (common with high-performance crankshafts), and if the engine will run in the medium- to high-rpm range, the H-series is an outstanding choice.

How to install rod bearings with engine still in the vehicle ..

Control of Wall Tolerance
Bearing-to-journal clearance on main and connecting rod bearings is affected by several factors. We've alleviated concerns about inconsistent shell-to-shell bearing wall thickness by using statistical control methods to minimize wall thickness variation. JEGS Engine Bearing thickness varies no more than 0.00010". Other manufacturers produce bearings with wall thickness at the crown that varies as much as 0.00025".