<VV> "Adjustable" timing light? - or not?
Sethracer at aol.com
Sethracer at aol.com
Sat Feb 20 01:00:20 EST 2016
The strobe light may be all you need, Ralph. The dial backs allow you
change a setting on the timing light, then check it at the "zero" point on the
balancer/rear cover. On a race motor, you might want 34 degrees of total
advance at a higher RPM, say 2200. With the dial back light, you can set the
dial to 34, rev the engine to 2200 and see if the flashing light ends up
firing when the mark on the balance is right at the Zero point on the casting.
Honestly, I do not use one. When the bulb died on my old Snap-On light
(replacement bulbs no longer available - it was 40+ years old) I bought one of
the battery powered ones from Flaming River - also sold under other brand
names. The batteries just slip inside the light. It does not have a dial
back feature. But it doesn't require hooking up to the vehicle battery either
- Perfect for the Corvair racer with the battery exiled up to the trunk!
Just slip the pickup over either #1 or #2 wire, and aim it at the balancer.
(Mine is already degreed for easy reading.)
- Seth Emerson
In a message dated 2/19/2016 7:40:19 P.M. Pacific Standard Time,
virtualvairs at corvair.org writes:
What is the advantage of the "Adjustable" timing light? What does the
Adjustment actually do?
I have an old strobe pistol type timing light and it seems to meet the
needs of a beginner like me,
Would it be helpful to step up to such a light?
Basically know as a "Dial Back" it allows you to go off / past the timing
scale on most engines and see what is happening above that.
All you do is keep the strobe on the TDC mark and read the dial or
Prior to this you needed to mark the Crank pulley to be able to see...
and many engines with full accesories would hide most of the pulley.
This message was sent by the VirtualVairs mailing list, all copyrights are
of the writer, please attribute properly. For help,
mailto:vv-help at corvair.org
This list sponsored by the Corvair Society of America,
Post messages to: VirtualVairs at corvair.org
Change your options: http://www.vv.corvair.org/mailman/options/virtualvairs
More information about the VirtualVairs