 How to check if your plugs are firing..., without removing them |
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| yarin |
 Apr 18 2006, 04:26 PM
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#1
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'14-X'in FOOL  Group: Members Posts: 988 Joined: 13-May 03 From: Guttenberg, NJ Member No.: 693 Region Association: North East States  |
While trying to figure out what could possibly be causing my injection issues with megasquirt I conducted a little experiment.
Using my timing light I clipped onto one of the spark plug wires and cranked the engine. Of course it flashed when that plug was fired. Then I moved to the suspect cylinder, guess what.. no flash. I pulled the plug and found it was fouled, totally black. I verified that it wouldnt spark by cranking the engine with the plug grounded. No spark. Changed the plug and Bingo.. spark and a flash from the timing light. Also useful when the engine is running too, i wish i thought of this earlier. Hopefully i'm on my way to converting my 2cyl type IV to a full 4 banger. Cheers (IMG:style_emoticons/default/clap56.gif) |
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| lapuwali |
Apr 18 2006, 04:36 PM
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#2
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Not another one! Group: Benefactors Posts: 4,526 Joined: 1-March 04 From: San Mateo, CA Member No.: 1,743  |
When I saw the title, I assumed this was going to be a question, and my first thought was: pull out your timing light...
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| yarin |
Apr 18 2006, 04:39 PM
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#3
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'14-X'in FOOL Group: Members Posts: 988 Joined: 13-May 03 From: Guttenberg, NJ Member No.: 693 Region Association: North East States |
QUOTE(lapuwali @ Apr 18 2006, 06:36 PM)  When I saw the title, I assumed this was going to be a question, and my first thought was: pull out your timing light... Exactly. I never thought plugs could get this fouled so they wouldnt spark. Great minds think alike. (IMG:style_emoticons/default/givemebeer.gif) |
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| jsteele22 |
Apr 18 2006, 04:59 PM
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#4
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Senior Member Group: Members Posts: 727 Joined: 24-August 05 From: Colorado Springs, CO Member No.: 4,653 |
QUOTE(lapuwali @ Apr 18 2006, 04:36 PM) When I saw the title, I assumed this was going to be a question, and my first thought was: pull out your timing light... And I was thining : Pull the heads ??? (IMG:style_emoticons/default/av-943.gif) |
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| cdmcse |
Apr 18 2006, 09:11 PM
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#5
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Member Group: Members Posts: 340 Joined: 17-December 04 From: Georgetown, Ky Member No.: 3,305 |
Chop Sticks?
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