Re: Distributor advances too much
- From: "JimBob" <VWJimBob@xxxxxxx>
- Date: Thu, 4 Aug 2005 23:38:46 -0400
"Karl" <aufever@xxxxxxxxxxx> wrote in message
news:FfAIe.1470$SE3.187@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> I see reading in not high up on your list of things to do today. Not sure
where you looked on
> Google... but here is one of the 1st links I found doing a JimBob oops I
mean a simple search:
> http://www.sporttruck.com/techarticles/33703/index5.html
>
> Scroll down to the vacuum advance section.....
>
> "Vacuum advance also adds timing to the engine, but it's based on engine
load and is controlled by
> intake-manifold vacuum. When the throttle is partially open (highway
cruising), manifold vacuum is
> high. This vacuum signal is routed to the distributor and "pulls" on the
vacuum advance canister to
> create more ignition timing. As the throttle opening increases, load
increases and manifold vacuum
> decreases. At wide-open throttle (WOT), manifold vacuum is at or near
zero, and the vacuum advance
> produces no additional ignition timing."
yes, this excerpt is correct....
>
> Hmmm, let's see what I wrote:
>
> Under a load, i.e. driving down the road, vacuum advance GOES away.
> and
> Vacuum advance only comes in when you accelerate or rev the engine in
neutral.
>
> Hmmm, let's see..... I said "under a load vacuum advance goes away" and
the link said "As the
> throttle opening increases, load increases and manifold vacuum decreases"
and the link is correct, you are wrong. "under load the vacuum advance goes
away" is close to accurate, however "under load, i.e. *driving down the
road*, vacuum goes away" is inaccurate. "driving down the road" implies a
steady cruise, which is a high vacuum state for your engine, and in turn
means higher vacuum advance. do you not understand what you read or just
confused on what you wrote? maybe the one crying about comprehension is too
ignorant to realize they contradict themselves in their own words.
>
> Yep, I guess you're right, BOTH the link and I are wrong. Huh?
no ma'am, the link is correct, you are not. you even state that the vacuum
advance only works while accellerating or reving in neutral. both are wrong.
if you suddenly open the throttle in either neutral or while driving vacuum
drops quickly(as stated in your copy/paste from your "reference) as does the
advance the vacuum provides. so, you either don't understand the link or are
so convinced you are correct that you are blinded. the link you provide to
"back" you, is directly contradicting your post. it is evident to everyone.
so i again must suggest you take your own advice and take mechanics 101 and
to also get a vacuum guage. you may become enlightened by what you see, but
you probably won't admit it. i wouldn't expect someone like you to do that.
>
> Get a long piece of vacuum hose and a vacuum gauge. Tee into your ported
hose going to the vacuum
> advance. You do have one? Or do you still believe a 009 is the greatest
thing since sliced bread?
> Now go drive your vehicle and watch the gauge. You may learn something.
>
>
no need, i have a vacuum guage in my Torino GT, and a Mallory Unilite in my
vw(009's are for chumps that don't understand how vacuum advance works, so
you probably have several) they both work the same, but neither work as you
state.
.
- References:
- Distributor advances too much
- From: azazel scratch
- Re: Distributor advances too much
- From: P.J. Berg
- Re: Distributor advances too much
- From: Karl
- Re: Distributor advances too much
- From: JimBob
- Re: Distributor advances too much
- From: Karl
- Re: Distributor advances too much
- From: JimBob
- Re: Distributor advances too much
- From: Karl
- Distributor advances too much
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