At 10:27 PM 8/11/2003 -0700, you wrote:
> As you may recall, I asked for and received many helpful hints last week
as to the cause of my rough idle, and inability to adjust the mixture per
the Bentley manual. To recap:
> Raising carb slides 1/8" cause a stumble.
Vance,
FWIW, I think the spec of 1/8" is actually wrong if you have a later unit.
On the later CD175's, with more features like emissions stuff, the air
piston movement where I usually see stumbling is more like 1/32nd inch...
in other words, barely lifted. Even a perfectly tuned, later carb will
stumble if the piston is raised 1/8 inch, in my experience.
I think the 1/8 inch spec is left over from early carbs and it just kept
getting reprinted even though later carbs behaved much differently.
Just a thought... good luck.
Glenn 74
San Diego
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