How to rebuild an engine
(→Assembly) |
(→Assembly) |
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-Always chase your threads with a hand tap on all holes where torque values are critical, | -Always chase your threads with a hand tap on all holes where torque values are critical, | ||
like head bolts to block. | like head bolts to block. | ||
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-Clean and oil them for a good torque reading but be sure that this is either what your manual instructs or is common practice for your engine/build. Take special care with soft metals like aluminum as you may do irreparable damage. | -Clean and oil them for a good torque reading but be sure that this is either what your manual instructs or is common practice for your engine/build. Take special care with soft metals like aluminum as you may do irreparable damage. | ||
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-Clean all bolt threads thoroughly: A wire brush on a grinder works well for this. | -Clean all bolt threads thoroughly: A wire brush on a grinder works well for this. | ||
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-Be sure to check and verify before using existing head bolts as some engines require new ones. | -Be sure to check and verify before using existing head bolts as some engines require new ones. | ||
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-Be sure when using or replacing any and all bolts with stainless or aluminum to use anti-seize on the threads. | -Be sure when using or replacing any and all bolts with stainless or aluminum to use anti-seize on the threads. | ||
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-Always check the unit system and grade of replacement fasteners. Using metric instead of US measurements is not in any way acceptable, nor is using ungraded or the wrong grade fasteners. Always use the fastener designated appropriate for your application. Using the wrong fastener will likely compromise the engine, its parts and/or put one at risk. In some instances, using too "strong" of a fastener may do more harm than good because they were intended to break before serious engine damage could occur. | -Always check the unit system and grade of replacement fasteners. Using metric instead of US measurements is not in any way acceptable, nor is using ungraded or the wrong grade fasteners. Always use the fastener designated appropriate for your application. Using the wrong fastener will likely compromise the engine, its parts and/or put one at risk. In some instances, using too "strong" of a fastener may do more harm than good because they were intended to break before serious engine damage could occur. | ||
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