How to choose a camshaft
(→Summary) |
(→Things that will "frag" a camshaft and lifters) |
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| − | 1. Failure to remove all rust-preventative from cam and lifters with solvent once you get them home. | + | *1. Failure to remove all rust-preventative from cam and lifters with solvent once you get them home. |
| − | 2. Failure to wash the cam and lifters with hot soapy water to remove the remainder of rust-preventative not removed with solvent. | + | *2. Failure to wash the cam and lifters with hot soapy water to remove the remainder of rust-preventative not removed with solvent. |
| − | 3. Failure to properly massage an extreme pressure lubricant such as Molybdenum Disulfide into the pores of the metal on all lobes and lifter faces. | + | *3. Failure to properly massage an extreme pressure lubricant such as Molybdenum Disulfide into the pores of the metal on all lobes and lifter faces. |
| − | 4. Failure to use an extreme pressure lubricant additive to the engine oil for camshaft break-in. | + | *4. Failure to use an extreme pressure lubricant additive to the engine oil for camshaft break-in. |
| − | 5. Failure to use the proper valve springs for cam break-in. You can't use the 350 lb over-the-nose springs that you'll eventually use in the motor and expect the cam to live. | + | *5. Failure to use the proper valve springs for cam break-in. You can't use the 350 lb over-the-nose springs that you'll eventually use in the motor and expect the cam to live. |
| − | 6. Failure to check for valve spring coil bind. | + | *6. Failure to check for valve spring coil bind. |
| − | 7. Failure to check for retainer to valve guide clearance. | + | *7. Failure to check for retainer to valve guide clearance. |
| − | 8. Failure to check for binding at the rocker/stud interface. | + | *8. Failure to check for binding at the rocker/stud interface. |
| − | 9. Failure to check for piston/valve clearance. | + | *9. Failure to check for piston/valve clearance. |
| − | 10. Failure to run the motor at high rpms for the first 35-40 minutes of its life. NO IDLING. NO IDLING. NO IDLING. | + | *10. Failure to run the motor at high rpms (2500 or higher, alternating 1000 rpm's up and/or down) for the first 35-40 minutes of its life. NO IDLING. NO IDLING. NO IDLING. |
| − | 11. Failure to clearance lifters in their bores so that they spin freely. | + | *11. Failure to clearance lifters in their bores so that they spin freely. |
| − | 12. Failure to initially adjust the valves properly. | + | *12. Failure to initially adjust the valves properly. |
| − | 13. Failure to inspect the distributor drive gear for wear. Too much wear can allow the cam to walk in its cam bore and contact an adjacent lifter. | + | *13. Failure to inspect the distributor drive gear for wear. Too much wear can allow the cam to walk in its cam bore and contact an adjacent lifter. |
== Summary == | == Summary == | ||
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