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发表于 2009-10-8 18:57
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If money allows, have the machine shop align-bore the cylinder-block main caps. The align-bore process delivers a perfectly straight crankshaft centerline within the block. Oftentimes, if the block is not line-bored, uneven clamping pressure will be distributed to the crankshaft--causing it to bind-up slightly as it rotates, which can rob horsepower, cause premature wear or lead to bearing failure.
A simple at-home machining process involves tapping all of the bolt holes on the cylinder block. The tap straightens the bolt hole threads and removes debris from the hole.
Before assembling the engine, always wash the cylinder block, crankshaft and rods with soapy water. Use a bottle brush to clean all of the small holes and galleries in the block.
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发表于 2009-10-8 18:49
发表于 2009-10-8 19:13
发表于 2009-10-8 20:52
