>Firstly. I am in Vancouver, B.C.
We can still pollute ... somewhat.
What did the test fail for, HC, NO or CO, and what were your levels?
Before I leaned out another 3/4 of a turn.
HC ppm driving idle
236 2000 (max allowed is 1500 the meter quits at 2000
...fail)
CO
1.42 7.46 (max allowed here is 7.5 ...pass)
NO
1350 (no pass or fail)
After leaning
HC ppm driving idle
55 2000 (max allowed is 1500 the meter quits at 2000
...fail)
CO
0.25 0.82 (max allowed here is 7.5 ...pass)
NO
395 (no pass or fail)
>I am assuming you failed for CO as you should run lean from your throttle
>shaft problem, and not fail for HC.
>Setting the engine to 1100 RPM idle will help, as the engine will use more
>air, and the ratio of throttled air to the shaft bypass air will increase.
I cannot get the idle down. The screws are at their minimum.
The only way to go down is by going lean.
>Newer oxigenated fuels allow engines to produce less HCs, use this type
>of fuel if you have a choice "only for the test".
I tried Chevron's octane '94' so far.
>Running a 10% mix "max" of dry methanol in otherwise pure gasoline will
>yield
>similar figures, but the CO2 level will be high. CO2 is not usually
>used as a failing criteria, although it may be monitored by the equip.
>
>
>Also make certain that your distributor timing is properly set, or 1 degree
>retarded. This will make the least amount of NO and CO emmisions, while
>not affecting HC emmisions. I'd tell you to retard the timing further, but
>most states only allow a plus or minus 1 degree leeway on the actual setting
>of your timing as seen by the inspector.
This inspector issue is not an issue. They do nothing where timing is
concerned.
>-6 BTDC with a 1000 to 1100 RPM idle would be your best bet, if nothing else
>were done then that.
>
>Jarrid Gross
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