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08-03-2005, 06:05 PM | #1 |
newly minted old timer
Join Date: Dec 1999
Location: Hudson WI
Posts: 3,520
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how to test a hei coil
anyone have a link for the testing of a coil? i think mine is dead and i have forgot how to test it.
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____________________________________________ 72 c20 longhorn 65k org miles and counting! 69 k10 Suburban |
08-03-2005, 07:47 PM | #2 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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you can go to most autoparts stores and they
'll test them for free
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
08-04-2005, 08:54 AM | #3 |
Registered User
Join Date: May 2005
Location: South Mississippi
Posts: 81
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Pull the whole dist. out. Put a wire, like tie wire, from one plug wire post to the next and just loop them together in series, but don't connct #1 to #8 and leave a 1 to 1 1/2 foot tail on your wire. Lay the dist. shaft on your front grill support for a ground, hook up a 12v hot wire to the dist. and locate the wire tail close to your grill. Spin the gear and you should see a hard spark from the tail wire every time the rotor passes a plug terminal. Did any of that make sense?
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1969 C10 Long Step,355,700r4w/lockup, HEI,Weiand,750 Performer,1.6 rockers,Camel Humps,Comp 262Extreme,Hedman,2 1/2"pipes, tele/tilt,SunRoof,ps,Disc pb,ac,Cragar,eaton,Corvette style roll pan, Bowtie louvered tail gate,lowered 2/2. |
08-04-2005, 09:08 AM | #4 |
Registered User
Join Date: Mar 2005
Location: north battleford, sk
Posts: 30
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Or, remove coil, .5 ohms from primary negative to primary positive, and 8,000 to 12,000 ohms from the center button(secondary) to either the primary positive or negative terminal depending on the year of the distributor.
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08-04-2005, 11:00 AM | #5 |
newly minted old timer
Join Date: Dec 1999
Location: Hudson WI
Posts: 3,520
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thats what i needed that canadian72gmc. i tried the part stores lol, what a waste of skin those guys are. they looked at me like i was crazy.
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____________________________________________ 72 c20 longhorn 65k org miles and counting! 69 k10 Suburban Last edited by mtdave2; 08-04-2005 at 11:00 AM. |
08-06-2005, 10:39 AM | #6 |
Senoir Member
Join Date: Mar 2002
Location: Rock Hill, SC USA
Posts: 1,214
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Sorta agree with canadian72gmc....with the coil REMOVED, reading between coil primary leads (red & white or yellow) should be .5 ohms approx. Checking the secondary side...reading from the button to the metal coil frame or black wire (depending on the coil brand) you should have 6-10,000 ohms. Factory coil has a black lead that is grounded to the metal frame, 50,000 volt super coil does not. With the coil installed and the ignition module wires plugged up, you read the secondary to the primary like canadian72gmc said. Just went thru this myself, secondary side died. New factory type was $18 at AutoZone. Greg
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