You can interpret static and dynamic timing settings as references to the
ignition timing when the engine is either not in motion (static) e.g not
running, or in motion (dynamic) e.g. the engine running.
Another way to look at it is when you apply the terms static and dynamic to when
the vacuum retard not working (static) or is working (dynamic) when the engine
is idling. Which is what I think the Bentley manual is doing.
So if you set your timing with the vacuum retard unhooked (and plugged at the
source of vacuum) with the engine idling then you should use the static (10-12
BTDC) setting since the vacuum retard is not "in motion". If you set your
timing with the vacuum retard hooked up with the engine idling then you should
use the dynamic (4 ATDC) setting since the vacuum retard is "in motion".
If you set your timing with the engine off as some people apparently do then you
use the static (10-12 BTDC) timing setting since obviously nothing (engine or
vacuum retard) is "in motion".
Seems to me that setting the timing using the static (10-12 BTDC)is the "safest"
way to go since if you choose to hook the vacuum retard back up and for some
reason it is not operating properly your car will still run decently at most, if
not all, of the operating range.
At least that's how I process all of this timing stuff info..
Bud 71TR6 CC57365
Subject: Re: Re: TR6: Why, Why, Why???
Author: canada <firstname.lastname@example.org>
Date: 10/7/98 10:10 PM
Well, I guess I am confused. On page 511, the Bentley manual specifies
"ignition timing at idle: 4 degree A.T.D.C." (Static timing is listed
at "10 degrees B.T.D.C.") Supposedly, these are the specs for the 75-76
with smog equipment. I set it at 4 degrees (with the retard--not the
advance as I mistakenly wrote earlier--plugged). It started and idled
well, then began to stumble a bit, and within 5 minutes was missing quite
badly while accelerating. When I moved it to 10 or 12 degrees, retard
plugged, idle 850, it runs perfectly. Have I misunderstood static and
dynamic timing? Or is the distributor not the only retarded thing about
Ian (Learning just enough to be dangerous)
>I think he meant that he set it to 12 BTDC, which is advanced timing.