Posted by Determined on January 01, 2014 at 10:57:03 from (216.130.212.95):
In Reply to: My week posted by David G on January 01, 2014 at 06:51:18:
Quoting Removed, click Modern View to see
The crankshaft makes two revolutions to one camshaft revolution.
Draw yourself a circle and divide it up into 720 degrees, this will represent one full camshaft revolution.
Now you can divide this by your 4 cylinders and mark out where each cylinder goes through intake, compression, firing and exhaust, piston up piston down etc.
Once you have that you will easily be able to mark out your valve opening, duration and closing.
Apply your cam to crank timing value and you will have a clear picture of what is going on.
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