Are You sure that the carbs are rebuilt correctly? The position of the
butterflys is very delicate. If they are not spot on, You cannot close them
perfectly.
Normaly with HS4s, you should be able to set the idle regardless of the
timing.
Can You set the idling too low, soo that the engine stops?
Gergo
2013/6/6 john spaur <jmsdarch@sbcglobal.net>
> Ok, I checked the archives but still have questions about timing and
> tuning the 3000 engine with three HS4 carbs.
>
> 1. The basics are set the valve clearances then set the breaker points.
> 2. Static time the car with #1 at TDC and pulley mark lined up with the
> timing cover pointer.
> 3. Set up the carb jets per the manual.
>
> From reading the archives it is not clear to me if the static timing
> should be advanced 10-15 degrees or static on the mark as the book states.
>
> Some posts stated it should be advanced as much as 35 degrees. Is that not
> when the engine is running at higher rpm's and the mechanical advance and
> vacuum advance have kicked in or should the static advance be higher?
>
> It seems the only way I can get the idle down low enough is to have the
> car static timed on the pointer and pulley marks. The carbs are rebuilt and
> there are no air leaks.
>
> What should the basic timing be when I am tuning the carbs?
>
> Any clues and help people can provide would be appreciated.
>
> John Spaur
> San Jose
> '62 BT7
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