Re: Re: Re: WHAT TO USE TO CHECK FOR SPARK?

Posted by Tom on January 26, 2004 at 09:08:49 from (152.163.253.66):

In Reply to: Re: Re: WHAT TO USE TO CHECK FOR SPARK? posted by jake on January 26, 2004 at 08:14:03:

Here's just a minor clarification of this process. It works well, and I have used a similar process many times. Here's the minor clarification -

1. The ignition switch must be turned on so that battery voltage is applied to the primary winding of the coil

2. The spark will occur when the points OPEN, not when they are closed or when the screwdriver shorts them out. If the points are on a low lobe of the distributor cam, you must use the screwdriver to OPEN the points to get a spark. If the points are on a high lobe of the distributor cam and consequently are already open, use the distributor to short out the points and then when you remove the short you will see the spark.

Good luck,

Tom

PS. Your process for checking for spark using an extra spark plug and jumper wire to insure a good ground is an excellent way to check for a spark. This process verifies that all of the ignition components are working including coil, points, distributor cap, wires, etc.

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