vacuum hose on distributor cap? (1 Viewer)

Joined
Jul 22, 2003
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17,854
Location
Perth Western Australia
 
 
 
Itsadryheat!!! said:
I think this hose pulls vacuum all the time. Not like a vent.
Yep,it sounds like the vacumm advance ,it pulls the plate inside the distributor around to advance the timing as the revs build up.

The other end should plug into the base of the carb.
To see if its working unplug it at the carb and suck on it. It should move something in the distributor.
 
Joined
Feb 19, 2004
Messages
3,353
Location
Pepperell MA
 
 
 
The hoses on top of the distributor pull any moisture out of the cap. There is a filter on the firewall and a couple VSV's to keep it from being a vacuum "leak".

HTH,
Nick
 
Joined
Oct 12, 2004
Messages
419
 
 
 
With the engine idling, make sure that one of the vac hoses attaching to the dist is pulling a vacuum, and the other(the one from the firewall/body) has free flow fresh air. If this vent system is not functioning, the eventual result is a destroyed signal generator in the dist, at which point the car won't start/run. Don't ask how I know this.
 

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