On Mon, 19 Dec 1994 MULLENT@YMV5.YMP.GOV wrote:
> Excuse me, but manifold vacuum is exactly what you want for a vacuum
> ADVANCE distributor. Simple explaination to follow:
>
> The vacuum ADVANCE distributor is advanced mechanically as a function
> of RPM, and manifold vacuum is used to provide additional advance,
> depending on the load (as measured by manifold vaccum). The vacuum is
> higher when the load is lower i.e. crusing, or idling, and lower for
> heavly load, i.e. accelerating, long uphill climbs. This allows the
> vacuum to advance the timing when there is little load (for maximum
> fuel efficiency), and to retard (actually just not advance) the timing
> when the engine is under load to reduce the "pining".
>
> Tim Mullen mullent@ymv5.ymp.gov Chantilly, VA
> 72 Elan Sprint "For the few who know the difference"
Whoa Dude,
You got my head spinnin' now. I thought I had the whole thing
figured out. Now I'm like majorly confused. When I like, pull the
vacuum line off of my advance unit on my dizzy, and stick it in my mouth,
and I rev on the engine, the thing starts to suck, and stops when the
engine gets up to speed.
I wanna see what the other dudes & dudettes have to say about when
and if our cars collectively suck.
Greg
Greg Meboe meboe@wsuaix.csc.wsu.edu
Dept. of Mechanical and Materials Engineering
Washington State University, Pullman, Wa.
'85 XJ-12 H.E. (daily) '67 Spit-6 '74 TR-6
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