Re: Vacuum advance distributor vacuum hose goes?
[Re: 1fastrunner]
#382515
07/21/09 08:45 PM
07/21/09 08:45 PM
|
Joined: Nov 2007
Posts: 21,855
Kirkland, Washington
Pacnorthcuda
Too Many Posts
|
Too Many Posts
Joined: Nov 2007
Posts: 21,855
Kirkland, Washington
|
Quote:
When setting my initial I just keep the vacuum hose to the distributor unplugged? Do the ported and manifold vacuum ports get plugged for setting timing? When the distributor vacuum advance gets plugged in, does it go to the manifold or ported vacuum port? When setting idle mixture screws, I use manifold ported vacuum?
Sorry about all the questions, but I just want to be sure I'm doing it the correct way.
Thanks,
Jim
1) The hose to the distributor does not need to be plugged. The carburator side should be plugged.
2) You want PORTED vacuum for the distrubutor (above the T-plates)
3) When setting mixture you want the gauge to be connected to FULL manifold vacuum
|
|
|
Re: Vacuum advance distributor vacuum hose goes?
[Re: Pacnorthcuda]
#382516
07/21/09 11:02 PM
07/21/09 11:02 PM
|
Joined: Sep 2005
Posts: 12,481
Chino Valley
RodStRace
I Live Here
|
I Live Here
Joined: Sep 2005
Posts: 12,481
Chino Valley
|
Yes, disconnect and plug the vacuum leak (hose if you took it off the dist., port if you took it off the carb), Stock was ported, and adjust carb with the advance hose connected, and use the vacuum gauge connected to manifold vacuum. There was an interesting discussion about timing and how it can affect engine temps here... http://www.jalopyjournal.com/forum/showthread.php?t=374847
|
|
|
Re: Vacuum advance distributor vacuum hose goes?
[Re: RodStRace]
#382517
07/22/09 08:04 AM
07/22/09 08:04 AM
|
Joined: Jan 2003
Posts: 5,791
Hamilton, Ontario Canada
Magnum
master
|
master
Joined: Jan 2003
Posts: 5,791
Hamilton, Ontario Canada
|
Ported is more popular and the way our cars were sent out of the factory but that does not mean manifold vacuum advance is incorrect.
It offers some advantages over ported.
More ignition timing for idling.
Both offer higher ignition timing at highway cruise and both drop back to full mechanical at wide open throttle.
My engine idles better at 50 deg than 30. That's why I run manifold.
69 Super Bee, 93 Mustang LX, 04 Allure Super
|
|
|
|
|
I always run manifold, better idle, engine runs cooler at idle, better off idle acceleration. Plus the weights in the distributor advance your timing as RPMs increase.