Date: Tue, 30 Oct 2007 15:14:35 -0700
Reply-To: Michael Elliott <camping.elliott@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Michael Elliott <camping.elliott@GMAIL.COM>
Subject: Re: Engine retardation (way too long)
In-Reply-To: <71d9cdf90710301429i1abbbf77kf745b713d75b5c7a@mail.gmail.com>
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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/
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