Running real weird
Le Mans Master
Joined: Aug 2017
Posts: 8,336
Likes: 2,810
From: Cool Northern Michigan
Thread Starter
Advanced
Joined: Oct 2017
Posts: 57
Likes: 0
Le Mans Master
Joined: Aug 2017
Posts: 8,336
Likes: 2,810
From: Cool Northern Michigan
Looking back at post # 5, you stated you removed the Vac advance arms and cleaned them, as in plural. This tells me you are not familiar with the Vac Adv arm. There is only one and its attached to the Vac Adv canister. You also stated the arms moved freely. The Vac Adv arm can not be moved easily or freely.
I think you were cleaning the MECHANICAL weights, and yes those do move freely. The springs on those are color coded to indicate their strength or weakness regarding the RPM at which they allow full mechanical advance.
Earlier we talked about the Vacuum canister. Two different timing components, two different timing events.
I think you were cleaning the MECHANICAL weights, and yes those do move freely. The springs on those are color coded to indicate their strength or weakness regarding the RPM at which they allow full mechanical advance.
Earlier we talked about the Vacuum canister. Two different timing components, two different timing events.
Race Director
Joined: Mar 2017
Posts: 11,949
Likes: 4,507
From: Virginia
Email @lars for his timing and distribution setup papers. (There are lots of threads with his address). Read them. Sleep on it. Read them again. Fully grok them, then apply your knowledge.
You've gotten some terrific advice on this thread, but a but a bit of big picture and jargon understanding will help us help you much faster.
And pictures!
You've gotten some terrific advice on this thread, but a but a bit of big picture and jargon understanding will help us help you much faster.
And pictures!
Dr. Detroit
Joined: Mar 2012
Posts: 10,097
Likes: 4,027
From: New Braunfels Texas
Hook a vacuum gauge up and see if it bounces at idle after it is warm.......if it does, you have a carb base gasket leak or intake manifold leak......both of these can rear their head when warm and not cold.....
Verify a steady needle.......do this first, then go to the timing via Lars papers..........set idle mixture with a vacuum gauge as well.....
You'll get it.........
Jebby
Verify a steady needle.......do this first, then go to the timing via Lars papers..........set idle mixture with a vacuum gauge as well.....
You'll get it.........
Jebby
