C1 & C2 Corvettes General C1 Corvette & C2 Corvette Discussion, Technical Info, Performance Upgrades, Project Builds, Restorations

Timing lights

Thread Tools
 
Search this Thread
 
Old Dec 11, 2006 | 05:23 PM
  #1  
Scott Marzahl's Avatar
Scott Marzahl
Thread Starter
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2005
Posts: 6,350
Likes: 423
From: Seattle Area WA
Default Timing lights

I'm in the market for a new timing light as my old Sun piece finally bit the dust. Does anyone have the Actron digital readout CP7529 timing light. I'm curious if it has a "dial back" function and how it performs.

Thanks
Reply
Old Dec 11, 2006 | 05:40 PM
  #2  
lars's Avatar
lars
Tech Contributor
Supporting Lifetime Gold
25 Year Member
Conversation Starter
Photogenic
Top Answer: 3
 
Joined: Aug 1999
Posts: 14,377
Likes: 6,377
From: At my Bar drinking and wrenching in Lafayette Colorado
Default

Yes, it's a dial-back light.
Reply
Old Dec 11, 2006 | 05:49 PM
  #3  
Scott Marzahl's Avatar
Scott Marzahl
Thread Starter
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2005
Posts: 6,350
Likes: 423
From: Seattle Area WA
Default

Thanks Lars!
Reply
Old Dec 11, 2006 | 05:49 PM
  #4  
DZVette's Avatar
DZVette
Melting Slicks
Supporting Lifetime
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2001
Posts: 3,019
Likes: 1,098
From: Aggieland TX
Default

http://www.actron.com/product_detail.php?pid=16315

DZ
Reply
Old Dec 11, 2006 | 09:54 PM
  #5  
Joel 67's Avatar
Joel 67
Melting Slicks
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Sep 2004
Posts: 2,917
Likes: 13
From: NE Illinois IL
Default

I believe Summit sells the hey also have house brands that are quite good for even less.
Reply
Old Dec 11, 2006 | 11:05 PM
  #6  
ctjackster's Avatar
ctjackster
Le Mans Master
Supporting Lifetime
20 Year Member
All Eyes On Me
Liked
Loved
 
Joined: Jul 2003
Posts: 6,808
Likes: 24
From: Westport CT
Default

Acton may supply the house brand light . . . . I have a basic Acton dial back light (old school, no digital readouts ) and it has worked well for the 5 years I have owned this one.
Reply
Old Dec 11, 2006 | 11:38 PM
  #7  
mrg's Avatar
mrg
Safety Car
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2001
Posts: 4,424
Likes: 619
From: northern CA
Default

No doubt those Sun timing lights are a bit 'ancient' at this point in time. Nice looking gun, though. I think I bought mine in...............1980? .. It hasn't given up the ghost, just yet. With all the talk about these dial-back timing lights in the forum I think I might spring for one of these baby's too. .. .

So........did I add anything constructive to this thread? .. . NO! ..

Reply
Old Dec 12, 2006 | 09:39 AM
  #8  
ctjackster's Avatar
ctjackster
Le Mans Master
Supporting Lifetime
20 Year Member
All Eyes On Me
Liked
Loved
 
Joined: Jul 2003
Posts: 6,808
Likes: 24
From: Westport CT
Default

Originally Posted by mrg
No doubt those Sun timing lights are a bit 'ancient' at this point in time. Nice looking gun, though. I think I bought mine in...............1980? .. It hasn't given up the ghost, just yet. With all the talk about these dial-back timing lights in the forum I think I might spring for one of these baby's too. .. .

So........did I add anything constructive to this thread? .. . NO! ..

Is that the [new] requirement to post? There goes half my post count! [this one included]
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-1

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-2

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-3

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-4

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-5

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-6

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-7

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-8

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-9

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
Old Dec 12, 2006 | 11:34 AM
  #9  
66BlkBB's Avatar
66BlkBB
Melting Slicks
Veteran: Army
20 Year Member
All Eyes On Me
Liked
 
Joined: Oct 2004
Posts: 3,345
Likes: 87
From: Northern MN
St. Jude Donor '13-'14-'15-'16-'17
Default

I have heard or read that the dial back lights are not really reliable when it comes to setting the timing on your vehicle. One article came out of Hot Rod magazine and they were rating the Sun Digital Dial Back hand held unit at the time against the standard timing light from Sears. In the article they put these lights on the same engines to set the timing and found that the Sun unit was off by some degrees when checked with the most accurate Sun scope unit. They recommended simply buying a Sears unit in their article. Have any of you had any problems with the timing being a little off when you drive the vehicles? I wouldn't mind having one just to check total advance on my car. Once I found where total should be I could dial it back and figure out what the initial is set at in case I simply want to time it with the old Sears light that I have. I realize that what I want it for is simplicity and doesn't cover all the aspects of getting the timing correct in all phases of the engine operation but it would give me a general start on how much advance, etc. that I have built in already.

Steve
Reply
Old Dec 12, 2006 | 11:44 AM
  #10  
ctjackster's Avatar
ctjackster
Le Mans Master
Supporting Lifetime
20 Year Member
All Eyes On Me
Liked
Loved
 
Joined: Jul 2003
Posts: 6,808
Likes: 24
From: Westport CT
Default

consistent with the advice I posted above, the Sears house brand (Craftsman) light is made by Acton . . . .
Reply
Old Dec 12, 2006 | 03:03 PM
  #11  
JohnZ's Avatar
JohnZ
Team Owner
Supporting Lifetime Gold
20 Year Member
Veteran: Army
 
Joined: Oct 2000
Posts: 38,897
Likes: 1,926
From: Washington Michigan
Default

I have the Actron CP-7519 (dial-back, but not digital) - works fine, shows EXACTLY the same readings as a friend's Snap-On digital dial-back light that cost 5X more.
Reply

Get notified of new replies

To Timing lights





All times are GMT -4. The time now is 01:05 PM.

story-0
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-1
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-2
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-3
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-4
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-5
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-6
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-7
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-8
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-9
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE