Sealed Power SPY1 Plastigage

Description

• Package dimensions: 0.508 cms L x 19.05 cms W x 0.762 cms H
• Package quantity: 1
• Product Type: Auto Part
• Country of Origin: United States

FED MOG .009-.020Plastigage can be used as a quick way to check clearance. To use plastigage correctly, firstassemble the upper bearing shell into the housing, then install the crankshaft. Lay a stripof plastigage lengthwise across the center of the bearing journal. Install the lower bearingshell and cap, and tighten the fasteners to the specified torque. Loosen the bolts andremove the bearing cap and lower shell, being careful not to rotate the crankshaft.Compare the thickness of the now compressed plastigage strip to the chart on its packageto determine the bearing clearance. Carefully remove all traces of plastigage from both thecrankshaft journal and the bearing before final assembly.High performance Engine applications may require different bearing clearances than unmodifiedengines. Many engine builders target a clearance range between .0022 and .0027.Clearances greater than .003 are not normally recommended. Some engine builders likehigher oil pressures than a standard oil pump can provide, particularly at lower enginespeeds. Large bearing clearances will lower oil pressure, and may require a high volumeoil pump. An engine should maintain a minimum oil pressure of 10 lbs. per 1000 RPM.Plastigage is also used by machine manufacturing for checking clearances. Pumps, Generators, Industrial equipment of all kinds can be checked using this procedure. Also used in the injection mold businesses.

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