<VV> "Adjustable" timing light? - or not?

[frankcb at aol.com]

Seth,
     "40+ years old"  You mean your dad actually let you work on his car BEFORE you even became a teenager??
How lucky can you get???
     Seriously, if all you're doing is trying to get your Corvair  close to a STOCK setting, then you probably don't need an adjustable timing light as long as you have a clear view of the timing mark at the stock setting.  However, if, like many of us; you're "inclined to experiment" then the adjustable timing light is an excellent investment.
     Frank "timing is everything" Burkhard
     Boonton, NJ
     

-----Original Message-----
From: Sethracer--- via VirtualVairs <virtualvairs at corvair.org>
To: virtualvairs <virtualvairs at corvair.org>
Sent: Sat, Feb 20, 2016 1:00 am
Subject: <VV> "Adjustable" timing light? - or not?


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?


Ralph
==============================================================


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 
meter...


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.


Matt Nall
Charleston, Oregon
http://tinyurl.com/The-Corvair-Patio

http://tinyurl.com/Matts-Tech-Pages









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