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Topic: Timing light not working

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Timing light not working

Posted: 6/3/09 7:46pm Message 1 of 15
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Erda, UT - USA
Joined: 8/1/2005
Posts: 200
Vette(s): 1973 coupe. LS4, M-21, DARK SADDLE LEATHER, POWER STEERING, POWER BRAKES, POWER WINDOWS, A/C, AM/FM STEREO, YELLOW ( 952 ).
I tried to time my car and the timing light will not work. I have new shielded wires, plugs are new and gapped at .35 as they should be. I never could get the timing light to work on the old wires either ,but, I figured that was because they were 36 years old. I put the timing light on my Escalade and it works fine. I've tried putting the wire clamp on the bare part of the wire and no luck.  Also, I tried timing it with my vacuum guage like I've seen suggested, but, I can't seem to nail it. Almost right, but, not right. Any Ideas?


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Timing light not working

Posted: 6/3/09 10:48pm Message 2 of 15
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Woodland, WA - USA
Joined: 10/14/2003
Posts: 1171
Vette(s): 1977 T-Top,350,Auto Black Ruby Pearl,Steeroids R&P conversion
Get yourself a normal sparkplug wire to bypass #1 Cyl for the timing


Timing light not working

Posted: 6/4/09 5:01am Message 3 of 15
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
My thought exactly...


Joel Adams
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Timing light not working

Posted: 6/4/09 7:30am Message 4 of 15
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Dorr, MI - USA
Joined: 8/21/2002
Posts: 2581
Vette(s): 71 Colonnade Hardtop Coupe Torch Red with black interior originally L48 built to push around 360hp
Yup I agree with the wire. Make sure your getting a good possitive and ground. Works on one car, should work on the other. my7T12009-06-04 07:31:42


Timing light not working

Posted: 6/4/09 8:00am Message 5 of 15
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Erda, UT - USA
Joined: 8/1/2005
Posts: 200
Vette(s): 1973 coupe. LS4, M-21, DARK SADDLE LEATHER, POWER STEERING, POWER BRAKES, POWER WINDOWS, A/C, AM/FM STEREO, YELLOW ( 952 ).
I had thought of that also, and, would have already tried it if I'd had an extra wire. I was just thinking there must be some trick to it other that that. Thanks All. You're GREAT!!!


Timing light not working

Posted: 6/4/09 9:06am Message 6 of 15
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Mounds View, MN - USA
Joined: 5/24/2007
Posts: 1031
Vette(s): 70 LT1 coupe, 69 350 HP coupe, 69 390HP 427 coupe, 71 LS5 convert, 85 coupe, 93 coupe
I just clip the pickup on the are at the end of the wire past the shielding.  You can almost always get to it under the distributor shield.

Larry



Timing light not working

Posted: 6/5/09 4:37am Message 7 of 15
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Erda, UT - USA
Joined: 8/1/2005
Posts: 200
Vette(s): 1973 coupe. LS4, M-21, DARK SADDLE LEATHER, POWER STEERING, POWER BRAKES, POWER WINDOWS, A/C, AM/FM STEREO, YELLOW ( 952 ).
I tried that Larry and it didn't work. I also tried a regular wire and my timing light wouldn't work on it either. The timing light does work on the Caddy. I'll have to borrow a timing light and see if it's a timing light thing or what.


Timing light not working

Posted: 6/5/09 5:03am Message 8 of 15
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
Where are you connecting the power and ground connectors for the light? I use the alternator for power, and engine block for ground...


Joel Adams
C3VR Lifetime Member #56    

My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

Timing light not working

Posted: 6/9/09 9:28am Message 9 of 15
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Erda, UT - USA
Joined: 8/1/2005
Posts: 200
Vette(s): 1973 coupe. LS4, M-21, DARK SADDLE LEATHER, POWER STEERING, POWER BRAKES, POWER WINDOWS, A/C, AM/FM STEREO, YELLOW ( 952 ).
I was using a remote battery. Used that same battery on the caddy and it worked. I'll try it the way you suggested.


Timing light not working

Posted: 6/9/09 11:12pm Message 10 of 15
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Hot Springs, AR - USA
Joined: 4/24/2004
Posts: 3236
Vette(s): 69 Conv #'s match 427, TKO-600/.64, 3.36HD-Posi, HT, T/T, PS, PB, PW, SP, Leather, Comp XE264HR & Roller Rockers & Lifters, Air-Gap RPM intake, Holley St Av 770 VS, MSD 6AL+Dist+Blaster SS, K&N, Jet-Hot Hooker Side-Pipes, Steeroids, Al Rad, Spal Fans
remember though that a timing light can only tell you what your timing is... not what it should be.
 
the published spec for your car is based on the least common denominator, the cheapest gas in the worst weather and will still run stable. 



in Forum: C3 Engines


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