>Jarrid,
> Why bother to try to remember all that?
Because it holds true on ALL 4 stroke engines.
> The only possible advantage I
>can see is being able to set the valves by rolling the engine over by 720
>degrees (one full cycle), instead of twice. I still say it is simple to
>renumber the valves 1 thru 8 from front to rear and use the "magic number
9".
> Even a completely inexperienced person cannot make a mistake identifying
>intake vs exhaust valves, as long as they can count to 9.
> Below is what you wrote, (with my additions in parenthesis):
>Jim Leach Pacific Tiger Club Seattle
>
>#1 intake is full open, adjust #4 intake (valve 2 + valve 7 = 9)
>#2 intake is full open, adjust #3 intake (valve 4 + valve 5 = 9)
>#3 intake is full open, adjust #2 intake (valve 5 + valve 4 = 9)
>#4 intake is full open, adjust #1 intake (valve 7 + valve 2 = 9)
>#1 exhaust is full open, adjust #4 exhaust (valve 1 + valve 8 = 9)
>#2 exhaust is full open, adjust #3 exhaust (valve 3 + valve 6 = 9)
>#3 exhaust is full open, adjust #2 exhaust (valve 6 + valve 2 = 9)
>#4 exhaust is full open, adjust #1 exhaust (valve 7 + valve 1 = 9)
Jarrid Gross
|