Timing lights
Thread Starter
Le Mans Master
Joined: Apr 2005
Posts: 6,359
Likes: 428
From: Seattle Area WA
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
Thanks
Race Director
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
I have an old MAC Tools one that has served me well for 20+ years. I do not need a dial back as my balancer is fully degreed. I have used a forum members dial back on his car and I liked it a lot. I liked having the tach on it to. Something mine does not have. Can't help you on yours that you are asking about.
Race Director
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
i bought the inexpensive craftsman dial back light for $70 but now wished i had thrown in some more bucks for one with a tach in it also.
Burning Brakes
Joined: Aug 2005
Posts: 751
Likes: 0
From: Lufkin Texas
I bought the digital one from Sears this weekend. It has the tach built in and you can dial back and all very nice.
Originally Posted by Scott Marzahl
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
Thanks
Burning Brakes
Joined: Aug 2005
Posts: 751
Likes: 0
From: Lufkin Texas
Also has a 20 dollar rebate right now so its basically the same price as the non digital one.
Originally Posted by toupstrio
I bought the digital one from Sears this weekend. It has the tach built in and you can dial back and all very nice.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Drifting
Joined: Sep 2006
Posts: 1,986
Likes: 21
From: Columbus MN
With advance, but not digital
I recent bought a new timing light from O'Reilly to figure out what was going on with my GMPP 350 HO. I bought a conventional strobe type with advance feature but no tach. The advance feature is great for seeing your total advance.
A tach feature would be nice, but I couldn't justify the price difference for the number of times I expect to use it. I am applying those delta $$ to more parts for winter restore/repair/upgrade project.
A tach feature would be nice, but I couldn't justify the price difference for the number of times I expect to use it. I am applying those delta $$ to more parts for winter restore/repair/upgrade project.
Melting Slicks
Joined: Jul 2004
Posts: 2,577
Likes: 2
From: Long Island New York
Originally Posted by toupstrio
I bought the digital one from Sears this weekend. It has the tach built in and you can dial back and all very nice.
. Right now I'm using an old Sun Inductive Timing light, non dialback of course. The light is not very bright and difficult to see outside. I tried my buddies Sears Inductive light and it's way brighter. The added feature of the tach is really nice also on the digital one.
Advanced
Joined: Jul 2005
Posts: 69
Likes: 0
So can someone explain how - in simple terms - a dial-back timing light works. For some reason I can't get my mind wrapped around it.
For it to work you need a good TDC mark on the balancer that lines up with a pointer on the engine correctly @ TDC????
With a good solid known TDC mark can you set the dial back for 32 degrees BTDC and the gun will fire where 32 should be so lining up the marks = 32 deg BTDC????? Is this correct????
Going a little farther I have a 89 chevy 350 TBI that I think the Dist is off 1 tooth which as I remember is about 15 degrees and or the pointer on the timing cover is way off. When I set the static timing to 4 degrees by the standard timing light it won't run or shift right. If I crank the distributer and time by ear the timing mark is way off on the marks.
I'm trying to find a way to determine what the timing is and thought a dial back may be able to tell me that????
Any ideas??
Thanks. LBM
For it to work you need a good TDC mark on the balancer that lines up with a pointer on the engine correctly @ TDC????
With a good solid known TDC mark can you set the dial back for 32 degrees BTDC and the gun will fire where 32 should be so lining up the marks = 32 deg BTDC????? Is this correct????
Going a little farther I have a 89 chevy 350 TBI that I think the Dist is off 1 tooth which as I remember is about 15 degrees and or the pointer on the timing cover is way off. When I set the static timing to 4 degrees by the standard timing light it won't run or shift right. If I crank the distributer and time by ear the timing mark is way off on the marks.
I'm trying to find a way to determine what the timing is and thought a dial back may be able to tell me that????
Any ideas??
Thanks. LBM
Race Director
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
Going a little farther I have a 89 chevy 350 TBI that I think the Dist is off 1 tooth which as I remember is about 15 degrees and or the pointer on the timing cover is way off. When I set the static timing to 4 degrees by the standard timing light it won't run or shift right. If I crank the distributer and time by ear the timing mark is way off on the marks.
I'm trying to find a way to determine what the timing is and thought a dial back may be able to tell me that????
Any ideas??
Thanks. LBM
I'm trying to find a way to determine what the timing is and thought a dial back may be able to tell me that????
Any ideas??
Thanks. LBM
