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Author Topic:   Timing Light, Vacuum Gauge
MDF99
Gearhead

Posts: 139
From: Hamilton, Ohio, USA
Registered: May 2001

posted 05-23-2002 11:40 AM     Click Here to See the Profile for MDF99   Click Here to Email MDF99     Edit/Delete Message   Reply w/Quote
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

posted 05-23-2002 01:21 PM     Click Here to See the Profile for MDF99   Click Here to Email MDF99     Edit/Delete Message   Reply w/Quote
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

posted 05-24-2002 12:33 AM     Click Here to See the Profile for Velocity0   Click Here to Email Velocity0     Edit/Delete Message   Reply w/Quote
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

posted 05-24-2002 01:43 PM     Click Here to See the Profile for Buster   Click Here to Email Buster     Edit/Delete Message   Reply w/Quote
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

posted 05-24-2002 02:39 PM     Click Here to See the Profile for MDF99   Click Here to Email MDF99     Edit/Delete Message   Reply w/Quote
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

posted 05-24-2002 02:46 PM     Click Here to See the Profile for Buster   Click Here to Email Buster     Edit/Delete Message   Reply w/Quote
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

posted 05-24-2002 03:33 PM     Click Here to See the Profile for MDF99   Click Here to Email MDF99     Edit/Delete Message   Reply w/Quote
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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