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05-29-2002, 09:49 PM
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#1 |
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Registered User
Join Date: Oct 2001
Location: Indianapolis, IN
Posts: 145
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Guess what....HEI ran BUT.....
Guess what guys???? I changed the spark polug wiring to the configuration of a point dist and GUESS what:...it ran BUT also I couldn't get the dang thing to turn off... pulled the key and everything. I piulled a plug wire and then the battery cables (both) and it kept on running. Eventually I had to pull the T connector on the front of the carb. That was the weirdest thing, especially when I had the keys in my had and it's still running.
Any ideas now about the spark plug wiring???? Thanks again, pat
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72 Chevy Custom 10 Deluxe (78K mi.) 95 Nissan Maxima (195K mi.) 73 VW Beetle (owned since 78; 96K miles) Engine rebuild by me done! 73 VW Super Beetle -New to me- Bought from original owner! 84 Honda Nighthawk (2500 mi.) I know too much foreign stuff; I've owned American too and they lasted just as long. |
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05-29-2002, 10:04 PM
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#2 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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Leave the wires as they are. Who cares if it isn't wired like a later model vehicle?
Your run on is becouse the wire you plugged into the dizzy is hot at all times. You'l have to do the under dash boogie again and plug it into one of the IGN-UNFUSED terminals. If it is in one already, your harness is messed up. __________________ |
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05-29-2002, 10:10 PM
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#3 |
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Psycho-billy Member
Join Date: Jul 2001
Location: about 40 miles west of Cleveland, Ohio
Posts: 2,591
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if it's running with the switch off, couldn't she pull the wire from the fuse block to see if she has constant power? (it should die when she pulls the wire right?)
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'72 C-10 350 w/Lunati Voodoo cam (207*/213*, .437/.454), Performer intake, 625 Road Demon Jr. and Hooker headers. Support your community, support yourself. Buy local, buy American  (or Canadian).
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05-31-2002, 01:46 PM
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#4 |
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Registered User
Join Date: Sep 2000
Location: Falcon, CO
Posts: 194
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Your engine Run-on is not unique if your truck has the alternator "idiot" light. The purpose of the light is to prevent the backflow if electricity in the alternator excite circuit. If the light bulb is omitted from the conversion, the engine will continue to run even after the key is turned off due to the backflow of electricity from the P1 terminal on the alternator to the "ACCESSORY" post on the Terminal Block, and then out to the coil.
By hooking to the radio circuit, you my have bypassed the indicator light, if so equipped. Since you got it running (Congratulations, by the way), you may want to re-connect your wiring to the proper "ign" circuit to see if that doesn't cure the problem.
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ColoradoMelons.com |
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05-31-2002, 03:06 PM
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#5 |
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Registered User
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,727
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It just sounds like you have the +12v wire to a terminal that is not switched. Make sure you are on the spade terminal marked IGN. While it is common for an MSD to run on with feedback votage from a warning light, it is not possible for such small voltage to trigger an HEI since the only wire is the 12v wire. The MSD is hooked with 10ga wire to a constant 12v source and the activation voltage is miniscule which is why it runs on with feedback voltage.
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44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax |
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