Previous Thread
Next Thread
Print Thread
Bench testing a '69 440 ignition coil? #2918611
05/04/21 07:27 PM
05/04/21 07:27 PM
Joined: Jan 2003
Posts: 21,473
N.E. OHIO, USA
A12 Offline OP
Too Many Posts
A12  Offline OP
Too Many Posts

Joined: Jan 2003
Posts: 21,473
N.E. OHIO, USA
I need to bench test a '69 440 (GTX) ignition coil using a battery, adjustable spark tester (image below) attached to coil high tension lead and grounded to engine block, and some jumper wires.....can it be done this way. Just need to find out if the coil will produce a spark.

Do I just connect the coil (+) and (-) to the battery (+) and (-) then break (remove) the ground or do I need a switch do discard the coil or ????? I've tried several different ways and still no spark so I've either done it right by accident and have a bad coil or doing it all wrong. Or it can't be done this way at all and I'm an idiot.......ok so some of you will agree with that last part regardless laugh2 Thanks in advance.

Mike

Z2wCJ_icpEx_.jpg
Re: Bench testing a '69 440 ignition coil? [Re: A12] #2918711
05/05/21 12:12 AM
05/05/21 12:12 AM
Joined: Jul 2008
Posts: 606
Boise
M
Moparteacher Offline
mopar
Moparteacher  Offline
mopar
M

Joined: Jul 2008
Posts: 606
Boise
Should work, but may not work without a condenser on the trigger (ground) circuit. Make sure to ground the spark tester.

Last edited by Moparteacher; 05/05/21 12:13 AM.
Re: Bench testing a '69 440 ignition coil? [Re: Moparteacher] #2920951
05/10/21 09:47 PM
05/10/21 09:47 PM
Joined: Jan 2003
Posts: 4,267
Morrow, OH
markz528 Offline
master
markz528  Offline
master

Joined: Jan 2003
Posts: 4,267
Morrow, OH
In the past when I tried that it worked but got a really small spark. The condensor extends the spark duration.


67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......
Re: Bench testing a '69 440 ignition coil? [Re: A12] #2920969
05/10/21 10:12 PM
05/10/21 10:12 PM
Joined: Jun 2012
Posts: 1,899
MYRTLE BEACH SOUTH CAROLINA
E
ek3 Offline
top fuel
ek3  Offline
top fuel
E

Joined: Jun 2012
Posts: 1,899
MYRTLE BEACH SOUTH CAROLINA
Originally Posted by A12
I need to bench test a '69 440 (GTX) ignition coil using a battery, adjustable spark tester (image below) attached to coil high tension lead and grounded to engine block, and some jumper wires.....can it be done this way. Just need to find out if the coil will produce a spark.

Do I just connect the coil (+) and (-) to the battery (+) and (-) then break (remove) the ground or do I need a switch do discard the coil or ????? I've tried several different ways and still no spark so I've either done it right by accident and have a bad coil or doing it all wrong. Or it can't be done this way at all and I'm an idiot.......ok so some of you will agree with that last part regardless laugh2 Thanks in advance.

Mike
ohm meter --- test it... 1.5 primary [set to 200 ohms for test] secondary around 11 set to 20 ohms for test .......







Powered by UBB.threads™ PHP Forum Software 7.7.1