spridgets
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RE: dashpot oil

To: "'Ron Soave'" <soavero@yahoo.com>, "David Ramsey" <dwramsey@worldnet.att.net>
Subject: RE: dashpot oil
Date: Mon, 13 Mar 2000 14:01:10 -0500charset=us-ascii
Cc: spridgets@autox.team.net
Ron,

You oughta be embarrassed that you didn't think of that before Crash told
you.  Sheesh.  I would be!

<snicker/grin>

Alright...  LOL

Mike

> -----Original Message-----
> From: Ron Soave [SMTP:soavero@yahoo.com]
> Sent: Monday, March 13, 2000 12:40 PM
> To:   David Ramsey
> Cc:   spridgets@autox.team.net
> Subject:      Re: dashpot oil
> 
> Um, ok...I mean other than that?  And installing the
> piston upside down doesn't count.
> 
> --- David Ramsey <dwramsey@worldnet.att.net> wrote:
> > Happens all the time, all you have to do is overfill
> > them.
> >             Crash
> > 
> > 
> > >As far as I know, Richard's response is text book
> > >correct.  I have never lost any damper oil, though
> > -
> > >that's a weird one.  Anyone?
> > >
> > >> Since the piston is part of a "closed loop"
> > feedback
> > >> system, it will hunt or
> > >> flutter around it's balance or set point. In this
> > >> steady state mode, the
> > >> dashpot works to filter out this hunting and
> > >> stabilize the piston. The
> > >> thicker the oil, the more dampening to the
> > control
> > >> loop.
> > >>
> > >> Upon acceleration, the dashpot retards the
> > otherwise
> > >> rapid rise of the
> > >> piston in response to the increase in vacuum.
> > This
> > >> increases the velocity of
> > >> the air past the fuel jet and temporarily
> > enrichens
> > >> the fuel mixture
> > >> providing a similar effect as an accelerator
> > pump.
> > >> The thicker the oil, the
> > >> more "accelerator pump" action is achieved.
> > >>
> > >> If the oil is too thin, fluttering at steady
> > >> throttle opening will occur as
> > >> well as stumbling upon acceleration.
> > >>
> > >> Too thick an oil and you will get overly rich and
> > >> sluggish acceleration.
> > >>
> > >> The owners manual for my '74 Midget calls for
> > engine
> > >> oil in the dashpots.
> > >>
> > >> I think most of this is mostly correct. Hope it
> > >> helps.
> > >>
> > >> Richard
> > >> '74 Midget (undergoing Arkley conversion)
> > >> '58 Morris Minor 1000
> > >> '68 MGBGT
> > >
> > >
> > >=====
> > >Ron Soave
> > >"By trying we can easily learn to endure adversity.
> > Another man's, I
> > mean." - Mark Twain
> > >
> > >Yes, the Yahoo message below annoys me too.
> > 
> > 
> 
> =====
> Ron Soave
> "By trying we can easily learn to endure adversity. Another man's, I
> mean." - Mark Twain
> 
> Yes, the Yahoo message below annoys me too.

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