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11-09-2004, 06:26 PM
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#1 |
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Registered User
 
Join Date: Apr 2000
Location: Bradenton, FL
Posts: 1,036
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HEI Problem
The tack side of the HEI is hot with the key on. I dont think this is right. If there is something wrong would it be the module? AM I missing something?
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1970 CST/10 402,700R4,3:73 posi,AC,PS,PB,TLT,PW,Buckets with heaters |
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11-09-2004, 11:01 PM
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#2 |
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Registered User
Join Date: Mar 2004
Location: Butler PA
Posts: 3,034
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i think it should be hot...there is power going to it when the key is on for the hole system to work....and it sends power to the tach to tell it to zero....then the pulses make the tach work.
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67 c-10, 400 SB, TH350, 4.10 gears, Blazer tank,camaro tach, sidemarker fuel fill (soon) WTB: stepside parts, 67 front end parts, 67 small window cab. posi for 3.73 or 4.10 for 12 bolt and 10 bolt. |
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11-09-2004, 11:21 PM
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#3 |
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Registered User
Join Date: Apr 2000
Location: Bradenton, FL
Posts: 1,036
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So its hot with the key on and then after it starts in not?
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1970 CST/10 402,700R4,3:73 posi,AC,PS,PB,TLT,PW,Buckets with heaters |
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11-09-2004, 11:38 PM
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#4 |
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Registered User
Join Date: Mar 2004
Location: Butler PA
Posts: 3,034
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i think it's solid hot and pulses when running...hook a tach wire to the terminal start the motor and hold the end of the wire...you will feel the pulses.
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67 c-10, 400 SB, TH350, 4.10 gears, Blazer tank,camaro tach, sidemarker fuel fill (soon) WTB: stepside parts, 67 front end parts, 67 small window cab. posi for 3.73 or 4.10 for 12 bolt and 10 bolt. |
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11-10-2004, 02:03 AM
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#5 |
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My other Love
Join Date: Aug 2001
Location: Castlegar B.C. Canada
Posts: 4,085
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plus the power coming out of the tach side of the coil is AC not DC so it will give a funny DC reading, But AC you will notice the voltage stay the same at any given RPM
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 Castlegar B.C.The great white North (Canada Eh!) Hooter_5@hotmail.com First generation Monte Carlo club pictures of my life |
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