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Author
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Topic: Timing Light, Vacuum Gauge
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MDF99
Gearhead Posts: 139
From: Hamilton, Ohio, USA
Registered: May 2001
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posted 05-23-2002 11:40 AM
   
I'm in the market for a nice timing light and a vacuum gauge. Who makes reliable and accurate ones that you all are happy with? Any special features you like to see on these tools that you feel is worth extra expense?
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MDF99
Gearhead Posts: 139
From: Hamilton, Ohio, USA
Registered: May 2001
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posted 05-23-2002 01:21 PM
On timing lights I see that some of them have a knob for adjusting advance. How does that work? I'm dealing mostly with a MSD billet distributor w/centrifugal advance. I will occasionally use it on other cars w/ factory ignitions.
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Velocity0
Gearhead Posts: 290
From: Burnaby, BC Canada
Registered: Apr 2001
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posted 05-24-2002 12:33 AM
that advance adujustment knob (on all the ones I've used) is just for telling you exactly what degree of advance you're at.
as you move the knob, it "delays" the flash until it is flashing at TDC. If you have turned the knob to 7 degrees, and it is hitting TDC, you're timing is 7 degress BTDC ....etc....
(Excuse me if I got my words mixed up) hehe
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Buster
Gearhead Posts: 282
From: Orlando
Registered: May 2002
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posted 05-24-2002 01:43 PM
I have an adjustable Snap On timing light that is very high dollar. I also have a much cheaper light without an adjustment for the race car. The adjustable light never seemed to impress the older racing guys, lol. The nice part about an adjustable light is, you use "0" TDC as your reference point and what you see on the dial is how much timing you have. Say you want 36 deg. total. Set you knob to 36. Mark you damper at 0, then adjust away. That is how I use it. In fact, most of the guys that have been around for a while will not use an adjustable light. They don't trust the advance feature. They say the MSD will cause them to be inaccurate or jump around....
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MDF99
Gearhead Posts: 139
From: Hamilton, Ohio, USA
Registered: May 2001
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posted 05-24-2002 02:39 PM
What do you all think about having the tachometer feature on a timing light?
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Buster
Gearhead Posts: 282
From: Orlando
Registered: May 2002
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posted 05-24-2002 02:46 PM
Hummm, don't know. I haven't seen one with a tach and not be adjustable....
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MDF99
Gearhead Posts: 139
From: Hamilton, Ohio, USA
Registered: May 2001
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posted 05-24-2002 03:33 PM
I checked the MSD troubleshooting webpage and they confirm that adjustable timing lights sometimes will make it appear that the timing is jumping around. They recommend the simple non-adjustable type of timing light. Sounds good to me, I'm always happy to save some bucks. Thanks much Buster!
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