Adjusting solid lifters
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(→Setting Valve Lash on Mechanical Cams) |
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# After the intake valve has been adjusted, continue to rotate the engine, watching that same intake valve. The intake valve will go to full lift and then begin to close. When the intake is almost closed, stop and adjust the exhaust valve on that particular cylinder. (Again, when we see the intake valve almost closed, we are sure that the exhaust lifter is on the base circle of the lobe.) Use the feeler gauge and follow the procedure described before in step 3. | # After the intake valve has been adjusted, continue to rotate the engine, watching that same intake valve. The intake valve will go to full lift and then begin to close. When the intake is almost closed, stop and adjust the exhaust valve on that particular cylinder. (Again, when we see the intake valve almost closed, we are sure that the exhaust lifter is on the base circle of the lobe.) Use the feeler gauge and follow the procedure described before in step 3. | ||
# Both valves on this cylinder are now adjusted, so move to your next cylinder and follow the same procedure again. In the future you may find shortcuts to this method, but it still remains the best way to do the job correctly. | # Both valves on this cylinder are now adjusted, so move to your next cylinder and follow the same procedure again. In the future you may find shortcuts to this method, but it still remains the best way to do the job correctly. | ||
| + | # Another and far superior method of adjusting the valves is to hand rotate the engine to bring up each piston in the firing order sequence. With the piston at TDC for that cylinder, both the intake and exhaust valves can be adjusted. You then rotate the engine 90 degrees and adjust the next cylinder in the firing sequence. The easy part of this is that you do not have start with number 1 cylinder, you can start with any cylinder and then follow the firing order. Once you have performed valve adjustment in this manner you will find that it is far faster and more accurate than other methods. You can also use it for what are considered tight lash cams or the infamous Duntov cam for the small block Chevy. Using the previously described method of EOIC (Exhaust Opening, Intake Closing) on tight lash cams will get you into trouble every time. | ||
===Using Valve Lash to Help Tune the Engine (aka "lash loop")=== | ===Using Valve Lash to Help Tune the Engine (aka "lash loop")=== | ||
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