Need help!

[rocco16v at netzero.net (L F)]

Actually, the vacuum advance is separate from the centrifugal advance. 
 CA is only rpm-related, advancing timing as engine rpm goes up. 
 VA is only vacuum-related, advancing timing based on intake manifold vacuum, advancing timing as vacuum increases. 
 So, a light load on the engine, say steady cruise at 65 mph, will effect more (vacuum) advance for better fuel economy.

For the record...
Larry

  ----- Original Message ----- 
  From: Krazy Horse 
  To: scirocco-l@scirocco.org 
  Sent: Sunday, February 29, 2004 3:20 PM
  Subject: RE: Need help!


  That looks like its the hose to the vacuum advance on the distributor. If 
  that comes off, then yes, your car will run like crap. As the engine RPMs 
  increase, then the timing will need to advance as well, with that hose off, 
  the timing will not advance at all. At idle, the timing might be 6* BTDC, 
  when flying down the freeway, the timing might be like 35* BTDC. If the 
  timing doesn't advance and stays at 6* when the engine needs it at 35*, 
  that's a problem. Did the issue go away when you put that hose back on and 
  took it for a spin?

  Every VW that I have owned (and worked on) had a Hall sending unit instead 
  of a vacuum advance.

  Please correct me if I am wrong, but thats what it looks like to me...

  -Craig
  "Nightmare" '88 16v (PG-T Proj.)
  "Calypso" '91 Golf GL (Daily Driver)

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