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Re: Check those brakes!!

To: "Nathen Ruffcorn" <nruffcorn@prodigy.net>,
Subject: Re: Check those brakes!!
From: "Kyle Hagemann" <kwhcpa@addler.net>
Date: Mon, 2 Oct 2000 08:29:26 -0700
From: "Nathen Ruffcorn" <nruffcorn@prodigy.net>
snip
> P.S.  Anyone have any thoughts as to why my idle jumped from 800 RPM to 2000
> RPM for about 30 seconds after the hard stop and then returned to normal???
> (not that I plan to make the tire screaching stops a habit <g>)

Hi Nathan-

Contrary to list wisdom, I doubt the car's heart was racing or adrenaline
was pumping.  Unless you have some pretty slick cyborgean aftermarket add
ons, that is;-P

I've experienced the same thing you describe; can't say for certain what
it is, but I'd guess the inertia of stopping so quickly goofs up something.
(duh, going out on a limb there, huh?:-)

It'd have to be either the SU pistons or the floats.  The floats seem like
the most likely culprit, but I don't quite understand how that could be;
maybe- the floats sink from the force, allowing fuel pump pressure
to effectively pressurize the fuel nozzle?  

Or the pistons - which are under a variety of forces - gravity, spring,
vacuum.  Seems that stopping rapidly could goof up the sensitive balance,
allowing the carb pistons to rise, feeding the beast more fuel, which
raises engine vac, etc.?

Kyle
'69 2000, iffy brakes, worse engine


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