Camshaft install tips and tricks
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Do not use any abrasive materials such as Scotch-Brite pads or sandpaper of any kind to accomplish these solvent and soap cleaning operations. Use only soft, clean rags. The camshaft is cleaned so that rust-preventative oils and greases can be completely removed. If left on the camshaft, such substances might hinder the penetration of an extreme pressure lubricant such as molybdenum disulphide. | Do not use any abrasive materials such as Scotch-Brite pads or sandpaper of any kind to accomplish these solvent and soap cleaning operations. Use only soft, clean rags. The camshaft is cleaned so that rust-preventative oils and greases can be completely removed. If left on the camshaft, such substances might hinder the penetration of an extreme pressure lubricant such as molybdenum disulphide. | ||
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| + | [[File:Zddplus.jpg|thumb|150px|ZDDPlus motor oil additive]] | ||
'''4. Failure to use an extreme pressure lubricant additive in the engine oil for camshaft break-in.''' | '''4. Failure to use an extreme pressure lubricant additive in the engine oil for camshaft break-in.''' | ||
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Most ZDDP additives recommend a specific quantity in the oil for break-in, and then half that amount for each subsequent oil change. Yes, it is possible to get too much ZDDP in the oil and generate spalling of the cam lobes. So do your research. And when in doubt, read the directions! | Most ZDDP additives recommend a specific quantity in the oil for break-in, and then half that amount for each subsequent oil change. Yes, it is possible to get too much ZDDP in the oil and generate spalling of the cam lobes. So do your research. And when in doubt, read the directions! | ||
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=====ZDDP resources===== | =====ZDDP resources===== | ||
*[http://www.zddplus.com/ ZDDPlus.com] (includes various tech briefs) | *[http://www.zddplus.com/ ZDDPlus.com] (includes various tech briefs) | ||
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*[http://www.zddplus.com/ZDDPlus%20MSDS.pdf ZDDPlus MSDS] | *[http://www.zddplus.com/ZDDPlus%20MSDS.pdf ZDDPlus MSDS] | ||
*[http://www.zddpforum.com/forum/ ZDDP forum] | *[http://www.zddpforum.com/forum/ ZDDP forum] | ||
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===Installation=== | ===Installation=== | ||
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Fully charged battery, good starter, known-good carburetor with full fuel bowl, source of fuel to the carburetor to allow minimum 20 minutes of uninterrupted running. Ignition timing set. Warning: no grinding on the starter! | Fully charged battery, good starter, known-good carburetor with full fuel bowl, source of fuel to the carburetor to allow minimum 20 minutes of uninterrupted running. Ignition timing set. Warning: no grinding on the starter! | ||
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| + | ===Pre-lube engine oil system=== | ||
| + | The lifters can be dipped into a container of oil but unless the manufacturer's instructions tell you otherwise, there's no need to pump hydraulic lifters up before installing them. There are some exceptions to this. For instance Rhodes lifters DO recommend their "[I]original[/I]" lifters be pumped up prior to installing, then for them to be adjusted to 3/4 of a turn, or so the lifter cup is about 1/16" below the retainer. | ||
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