https://www.cyclechaos.com/w/index.php?title=Overhead_camshaft&feed=atom&action=historyOverhead camshaft - Revision history2024-03-29T13:57:03ZRevision history for this page on the wikiMediaWiki 1.36.1https://www.cyclechaos.com/w/index.php?title=Overhead_camshaft&diff=48131&oldid=prevAddicted2speed at 16:42, 28 November 20102010-11-28T16:42:57Z<p></p>
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<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>'''Overhead camshaft''' or '''OHC''', valvetrain configurations place the [[engine]] [[camshaft]] within the cylinder heads, above the [[combustion chamber]]s, and drive the valves or lifters in a more direct manner, when compared with Overhead valves [[OHV]] and [[pushrod]]s.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>'''Overhead camshaft''' or '''OHC''', <ins style="font-weight: bold; text-decoration: none;">[[</ins>valvetrain<ins style="font-weight: bold; text-decoration: none;">]] </ins>configurations place the [[engine]] [[camshaft]] within the cylinder heads, above the [[combustion chamber]]s, and drive the valves or lifters in a more direct manner, when compared with Overhead valves [[OHV]] and [[pushrod]]s.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>When compared directly with OHV pushrod (or I-Head) systems with the same number of valves, the reciprocating components of the OHC system are fewer and in total will have less mass. Though the system that drives the cams may become more complex, most engine manufacturers easily accept the added complexity in trade for better engine performance and greater design flexibility. The OHC system can be driven using the same methods as an OHV system, these methods may include using a rubber/kevlar toothed timing belt, chain, or in less common cases, gears.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>When compared directly with OHV pushrod (or I-Head) systems with the same number of valves, the reciprocating components of the OHC system are fewer and in total will have less mass. Though the system that drives the cams may become more complex, most engine manufacturers easily accept the added complexity in trade for better engine performance and greater design flexibility. The OHC system can be driven using the same methods as an OHV system, these methods may include using a rubber/kevlar toothed timing belt, chain, or in less common cases, gears.</div></td></tr>
</table>Addicted2speedhttps://www.cyclechaos.com/w/index.php?title=Overhead_camshaft&diff=46932&oldid=prevBot: Robot: Automated text replacement (-combustion chamber +combustion chamber)2010-11-24T03:03:26Z<p>Robot: Automated text replacement (-combustion chamber +<a href="/wiki/Combustion_chamber" title="Combustion chamber">combustion chamber</a>)</p>
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<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>'''Overhead camshaft''' or '''OHC''', valvetrain configurations place the [[engine]] [[camshaft]] within the cylinder heads, above the combustion <del style="font-weight: bold; text-decoration: none;">chambers</del>, and drive the valves or lifters in a more direct manner, when compared with Overhead valves [[OHV]] and [[pushrod]]s.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>'''Overhead camshaft''' or '''OHC''', valvetrain configurations place the [[engine]] [[camshaft]] within the cylinder heads, above the <ins style="font-weight: bold; text-decoration: none;">[[</ins>combustion <ins style="font-weight: bold; text-decoration: none;">chamber]]s</ins>, and drive the valves or lifters in a more direct manner, when compared with Overhead valves [[OHV]] and [[pushrod]]s.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>When compared directly with OHV pushrod (or I-Head) systems with the same number of valves, the reciprocating components of the OHC system are fewer and in total will have less mass. Though the system that drives the cams may become more complex, most engine manufacturers easily accept the added complexity in trade for better engine performance and greater design flexibility. The OHC system can be driven using the same methods as an OHV system, these methods may include using a rubber/kevlar toothed timing belt, chain, or in less common cases, gears.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>When compared directly with OHV pushrod (or I-Head) systems with the same number of valves, the reciprocating components of the OHC system are fewer and in total will have less mass. Though the system that drives the cams may become more complex, most engine manufacturers easily accept the added complexity in trade for better engine performance and greater design flexibility. The OHC system can be driven using the same methods as an OHV system, these methods may include using a rubber/kevlar toothed timing belt, chain, or in less common cases, gears.</div></td></tr>
</table>Bothttps://www.cyclechaos.com/w/index.php?title=Overhead_camshaft&diff=37466&oldid=prevBudlight at 14:49, 14 June 20102010-06-14T14:49:53Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:49, 14 June 2010</td>
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<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>'''Overhead camshaft''' or '''OHC''', valvetrain configurations place the engine [[camshaft]] within the cylinder heads, above the combustion chambers, and drive the valves or lifters in a more direct manner, when compared with Overhead valves [[OHV]] and [[pushrod]]s.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>'''Overhead camshaft''' or '''OHC''', valvetrain configurations place the <ins style="font-weight: bold; text-decoration: none;">[[</ins>engine<ins style="font-weight: bold; text-decoration: none;">]] </ins>[[camshaft]] within the cylinder heads, above the combustion chambers, and drive the valves or lifters in a more direct manner, when compared with Overhead valves [[OHV]] and [[pushrod]]s.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>When compared directly with OHV pushrod (or I-Head) systems with the same number of valves, the reciprocating components of the OHC system are fewer and in total will have less mass. Though the system that drives the cams may become more complex, most engine manufacturers easily accept the added complexity in trade for better engine performance and greater design flexibility. The OHC system can be driven using the same methods as an OHV system, these methods may include using a rubber/kevlar toothed timing belt, chain, or in less common cases, gears.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>When compared directly with OHV pushrod (or I-Head) systems with the same number of valves, the reciprocating components of the OHC system are fewer and in total will have less mass. Though the system that drives the cams may become more complex, most engine manufacturers easily accept the added complexity in trade for better engine performance and greater design flexibility. The OHC system can be driven using the same methods as an OHV system, these methods may include using a rubber/kevlar toothed timing belt, chain, or in less common cases, gears.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Many OHC engines today employ Variable Valve Timing and multiple valves to improve efficiency and power. OHC also inherently allows for greater engine speeds over comparable cam-in-block designs.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Many OHC engines today employ Variable Valve Timing and multiple valves to improve efficiency and power. OHC also inherently allows for greater engine speeds over comparable cam-in-block designs.</div></td></tr>
<tr><td colspan="2"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">==See Also==</ins></div></td></tr>
<tr><td colspan="2"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">*[[Dual overhead camshaft]]</ins></div></td></tr>
<tr><td colspan="2"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">*[[Single overhead camshaft]]</ins></div></td></tr>
<tr><td colspan="2"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">*[[Unicam]]</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Definitions]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Definitions]]</div></td></tr>
</table>Budlighthttps://www.cyclechaos.com/w/index.php?title=Overhead_camshaft&diff=37463&oldid=prevBudlight: OHC moved to Overhead camshaft2010-06-14T14:49:05Z<p><a href="/wiki/OHC" class="mw-redirect" title="OHC">OHC</a> moved to <a href="/wiki/Overhead_camshaft" title="Overhead camshaft">Overhead camshaft</a></p>
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<td colspan="1" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:49, 14 June 2010</td>
</tr><tr><td colspan="2" class="diff-notice" lang="en"><div class="mw-diff-empty">(No difference)</div>
</td></tr></table>Budlighthttps://www.cyclechaos.com/w/index.php?title=Overhead_camshaft&diff=33011&oldid=prevNoles1984 at 13:35, 18 March 20082008-03-18T13:35:29Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 13:35, 18 March 2008</td>
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<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>'''Overhead camshaft'''<del style="font-weight: bold; text-decoration: none;">, commonly abbreviated to </del>'''OHC''', valvetrain configurations place the engine camshaft within the cylinder heads, above the combustion chambers, and drive the valves or lifters in a more direct manner, when compared with Overhead valves <del style="font-weight: bold; text-decoration: none;">(</del>OHV<del style="font-weight: bold; text-decoration: none;">) </del>and <del style="font-weight: bold; text-decoration: none;">pushrods</del>.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>'''Overhead camshaft''' <ins style="font-weight: bold; text-decoration: none;">or </ins>'''OHC''', valvetrain configurations place the engine <ins style="font-weight: bold; text-decoration: none;">[[</ins>camshaft<ins style="font-weight: bold; text-decoration: none;">]] </ins>within the cylinder heads, above the combustion chambers, and drive the valves or lifters in a more direct manner, when compared with Overhead valves <ins style="font-weight: bold; text-decoration: none;">[[</ins>OHV<ins style="font-weight: bold; text-decoration: none;">]] </ins>and <ins style="font-weight: bold; text-decoration: none;">[[pushrod]]s</ins>.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>When compared directly with OHV pushrod (or I-Head) systems with the same number of valves, the reciprocating components of the OHC system are fewer and in total will have less mass. Though the system that drives the cams may become more complex, most engine manufacturers easily accept the added complexity in trade for better engine performance and greater design flexibility. The OHC system can be driven using the same methods as an OHV system, these methods may include using a rubber/kevlar toothed timing belt, chain, or in less common cases, gears.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>When compared directly with OHV pushrod (or I-Head) systems with the same number of valves, the reciprocating components of the OHC system are fewer and in total will have less mass. Though the system that drives the cams may become more complex, most engine manufacturers easily accept the added complexity in trade for better engine performance and greater design flexibility. The OHC system can be driven using the same methods as an OHV system, these methods may include using a rubber/kevlar toothed timing belt, chain, or in less common cases, gears.</div></td></tr>
</table>Noles1984https://www.cyclechaos.com/w/index.php?title=Overhead_camshaft&diff=32971&oldid=prevNoles1984: New page: '''Overhead camshaft''', commonly abbreviated to '''OHC''', valvetrain configurations place the engine camshaft within the cylinder heads, above the combustion chambers, and drive the valv...2008-03-17T19:37:29Z<p>New page: '''Overhead camshaft''', commonly abbreviated to '''OHC''', valvetrain configurations place the engine camshaft within the cylinder heads, above the combustion chambers, and drive the valv...</p>
<p><b>New page</b></p><div>'''Overhead camshaft''', commonly abbreviated to '''OHC''', valvetrain configurations place the engine camshaft within the cylinder heads, above the combustion chambers, and drive the valves or lifters in a more direct manner, when compared with Overhead valves (OHV) and pushrods.<br />
<br />
When compared directly with OHV pushrod (or I-Head) systems with the same number of valves, the reciprocating components of the OHC system are fewer and in total will have less mass. Though the system that drives the cams may become more complex, most engine manufacturers easily accept the added complexity in trade for better engine performance and greater design flexibility. The OHC system can be driven using the same methods as an OHV system, these methods may include using a rubber/kevlar toothed timing belt, chain, or in less common cases, gears.<br />
<br />
Many OHC engines today employ Variable Valve Timing and multiple valves to improve efficiency and power. OHC also inherently allows for greater engine speeds over comparable cam-in-block designs.<br />
[[Category:Definitions]]</div>Noles1984