[DMCForum] Re: Listening to the car

["cruznmd" <racuti1@xxxxxxxxxxxx>]

Walt,

I beg to differ. The manual, page M:01:01, para. 4 states:

"The advance is mechanically controlled according to engine SPEED by 
governor weights inside the distributor body....and by according to 
engine LOAD by vacuum control acting directly on the base plate..."

This tells me that when not under load, such as maintaining speed, or 
coasting (in gear), that the weights maintain correct advance, and 
that "under load", such as when pulling out from a stop, or hard 
acceleration, the vacuum provides the necessary advance, because the 
weights have not come into play yet.

This is supported by the fact that my car runs well when only 
maintaining speed, by then the weights are maintaining enough 
advance, and the fact that it revvs fairly easily when spiking the 
throttle in my driveway. There is no "load" on the engine, so not 
nearly as much vacuum advance is necessary AND the centrifugal 
advance comes into play far sooner. However, the harder I "spike" the 
throttle in the driveway, the more pronounced the bogging-out becomes 
because even in the driveway, if you ask the engine to go from 700-
ish RPM's to 4-5k RPM's, you create enough load to require more 
vacuum advance.

Of course, I'll offer my disclaimer now that I may be mis-
understanding what I'm reading and I could be full of $hit. :) Inputs 
are welcome.

Rich A.
#5335

--- In DMCForum@xxxxxxxxxxxxxxx, "Walter Coe" <Whalt@xxxx> wrote:
> Rich, I don't see how it could be the advance.  I checked this on 
my car first testing mechanical advance (plugging the vacuum line) 
and then again testing with vacuum advance added using a hand vacuum 
pump.  It all checked out fine.  But then this was with the car 
sitting still & not under load.  But load or no load, it should work 
the same.

Yahoo! Groups Sponsor

ADVERTISEMENT

---

Yahoo! Groups Links

• To visit your group on the web, go to:
  http://groups.yahoo.com/group/DMCForum/
   
• To unsubscribe from this group, send an email to:
  DMCForum-unsubscribe@xxxxxxxxxxxxxxx
   
• Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.