 Setting the Timing, Timing light not working on #1 wire? |
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| Mblizzard |
 Aug 17 2013, 03:04 PM
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#1
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Advanced Member  Group: Members Posts: 3,033 Joined: 28-January 13 From: Knoxville Tn Member No.: 15,438 Region Association: South East States  |
This is the strangest thing I have ever seen. Trying to set the timing and the flash from the light is intermittent at best. Ok so I have a cheap light but I know number 1 has spark. I used my self as the ground to be sure.
Engine runs like it is hitting on all 4 and pulling #1 does change the engine speed. But move the clip to any other wire and it works. Swapped the wire from 1 to 2 and the light works on 2 but still not on 1? I have a compufire ignition. Swapped caps and rotor and got the same thing. Ideas????????? (IMG:style_emoticons/default/confused24.gif) 2.0 dual 44s. Using the dizzy that was running my 1.8. |
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| stugray |
Aug 17 2013, 03:11 PM
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#2
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Advanced Member Group: Members Posts: 3,824 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None |
Wires can go bad and caps can go bad.
The light triggers by current. If #1 is the only one that gets too low of a current to trigger (after moving wires) means that the Distributor is at fault. Change caps to see if problem goes away. and then check dist bearings (reason caps go bad) Stu EDIT: oh and a plug that is not firing.... |
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| Dave_Darling |
Aug 17 2013, 06:01 PM
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#3
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914 Idiot Group: Members Posts: 14,990 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California 
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The clamp on my old timing gun didn't pick up the signal from the #1 plug wire that well at times. Moving the clamp around to different spots on the wire seemed to make a difference.
--DD |
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| larss |
Aug 18 2013, 12:01 AM
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#4
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Member Group: Members Posts: 428 Joined: 10-September 09 From: Sweden Member No.: 10,787 Region Association: Scandinavia |
My timing light has to have the arrow on the clamp pointing to the spark plug, else it does not work... /lars s
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| McMark |
Aug 18 2013, 07:21 AM
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#5
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
Similar to what Lars said, you can try clamping it the other way or you can clamp onto #3 wire.
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| Mblizzard |
Aug 18 2013, 01:32 PM
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#6
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Advanced Member Group: Members Posts: 3,033 Joined: 28-January 13 From: Knoxville Tn Member No.: 15,438 Region Association: South East States |
Mark you cant set the timing using #3 right?
Set timing by ear and drove it a bit. My snail guage broke so I can't really set the carbs at all. I am going to switch back to the orginal 2.0 dizzy and see if #1 will show on the timing light. |
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| stugray |
Aug 18 2013, 01:52 PM
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#7
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Advanced Member Group: Members Posts: 3,824 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None |
Have you checked the plug?
A fouled plug may not give a "sharp" enough edge to trigger the light. Stu |
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| Mblizzard |
Aug 18 2013, 03:20 PM
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#8
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Advanced Member Group: Members Posts: 3,033 Joined: 28-January 13 From: Knoxville Tn Member No.: 15,438 Region Association: South East States |
QUOTE(stugray @ Aug 18 2013, 11:52 AM)  Have you checked the plug? A fouled plug may not give a "sharp" enough edge to trigger the light. Stu Will pull the plug that is a good thought! |
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| Mblizzard |
Aug 18 2013, 06:26 PM
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#9
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Advanced Member Group: Members Posts: 3,033 Joined: 28-January 13 From: Knoxville Tn Member No.: 15,438 Region Association: South East States |
QUOTE(Mblizzard @ Aug 18 2013, 01:20 PM) QUOTE(stugray @ Aug 18 2013, 11:52 AM) Have you checked the plug? A fouled plug may not give a "sharp" enough edge to trigger the light. Stu Will pull the plug that is a good thought! We have a winner! Bad plug! Never seen that Stu. Thanks for the tip. |
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