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Stories tagged with: Head Bolt
cylinder head bolt|head bolt|screw
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http://www.fbgauto.com.tw/
FBG Industrial Co., Ltd not only a best partner you can trust, but with most wide range of auto spare parts you can choose. We are keep developing new items with our joint ventures and with hundreds of tooling by ourselves including cylinder head bolt, Head Bolt, screw, hydraulic lifter, camshaft, oil pump, water pump, engine bearing, rocker arm, piston ring, valve, timing chain and so on…
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Submitted by qq16797870
36 months, 1 week, 3 days, 14 hours agoTags: Cylinder Head Bolt, Head Bolt, screw
Bolt Stretch and Loading.
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http://www.fbgauto.com.tw/Head_Bolt_3.html
Though head bolts seem to be pretty rigid fasteners, they are actually designed to stretch. Stretching a bolt is like stretching a rubber band. It allows the fastener to exert force against a surface to hold the parts together. This is especially important with gasketed surfaces because the gaskets have a certain amount of give that must be overcome by the fasteners to maintain a tight seal.
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How important are the various fasteners in an engine?
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http://www.fbgauto.com.tw/Head_Bolt_2.html
Consider this: the head bolts have to withstand tremendous loads to keep the cylinder head sealed tightly against the head gasket and block. In an engine with four inch cylinder bores and peak combustion pressures of around 1,100 pounds per square inch, each cylinder exerts about 13,827 lbs. of pressure against the cylinder head at full throttle. In fact, head bolts may have to handle loads of more than five tons per bolt at wide-open throttle!
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Head Bolt Torque Accuracy
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http://www.fbgauto.com.tw/Head_Bolt_1.html
Many people never check the accuracy of their torque wrenches in the use of head bolts. The "old fashioned" deflection beam style torque wrenches are the least expensive wrenches but also the most accurate in terms of holding head bolt’s calibration.
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