Date: Tue, 30 Oct 2007 18:15:15 -0700
Reply-To: Jake de Villiers <crescentbeachguitar@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Jake de Villiers <crescentbeachguitar@GMAIL.COM>
Subject: Re: Engine retardation (way too long)
In-Reply-To: <4727ACCB.1040701@gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
I think I went with 32 - 34 degrees. It runs greta, passes AirCare every
year and gets good gas mileage.
Some motors will tolerate more like 38 or 39 but the low compression, the
slow combustion chamber and the regular gas made me not want to try it with
the WBX.
YMMV, blahblahblah
On 10/30/07, Michael Elliott <camping.elliott@gmail.com> wrote:
>
> Newbie question: What's the total advance spec for a 1.9l? At what rpm?
> Vacuum hoses hooked up?
>
> --
> Mike "Rocket J Squirrel" Elliott
> 71 Type 2: the Wonderbus
> 84 Westfalia: Mellow Yellow ("The Electrical Banana")
> 74 Utility Trailer. Ladybug Trailer, Inc., San Juan Capistrano
> KG6RCR
>
> On 10/30/2007 2:29 PM Jake de Villiers wrote:
>
> > The vacuum and centrifugal advance curves are designed to work with the
> > specified initial advance, so using the factory specs for a factory
> engine
> > is obviously the right thing to do.
> >
> > With older engines, I prefer to use an advance timing light to set the
> total
> > advance at the specified RPM and let the initial timing be an inferred
> > consequence, worn parts and all.
> >
> > Too much total timing is the only thing I'm worried about.
> >
> > It works for me.
> >
> > On 10/30/07, Geza Polony <gezapolony@sbcglobal.net> wrote:
> >> Folks, volks,
> >>
> >> Correct if wrong, but conventional wisdom says VWOA specified ATDC
> timing
> >> in
> >> the early 1980s ONLY to meet pollution control standards. Is that
> right?
> >>
> >> It then follows that we can run these engines at other settings without
> >> any
> >> harm, and perhaps more power, if we don't care about destroying the
> only
> >> environment we have and causing mass extinction in an apocalyptic heat
> >> wave
> >> combined with unending hurricanes and general annihilation.
> >>
> >> OK, that means we can run our waterboxers at TDC, 5 BTDC, or even more,
> to
> >> good effect, except for the minor environmental probs mentioned.
> >>
> >> What I want to know is: who here are running at TDC or BTDC? How long
> have
> >> you been doing it? Has there been any identifiable engine damage?
> Better
> >> power? Better or worse fuel economy?
> >>
> >> I ran my 1.9 at around 5 BTDC before I got chicken and set it back to
> >> ATDC.
> >> It's less peppy, but there isn't really a huge amount of difference. I
> had
> >> an idea in my head that I'd burning a piston or a valve and didn't want
> to
> >> risk it. Is that right?
> >>
> >> Anybody been running BTDC for years and years?
> >>
> >> thanks
> >>
> >>
> >> Geza
> >>
> >
> >
> >
> > --
> > Jake
> > 1984 Vanagon GL
> > 1986 Westy Weekender "Dixie"
> > www.crescentbeachguitar.com
> > http://subyjake.googlepages.com/
>
--
Jake
1984 Vanagon GL
1986 Westy Weekender "Dixie"
www.crescentbeachguitar.com
http://subyjake.googlepages.com/
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