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Thread Tools | Display Modes |
11-07-2006, 10:49 PM
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#1 |
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Senior Member
Join Date: Mar 2002
Location: Bartlett, TN
Posts: 348
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Please Help - Electrical Gremlins
Hey members, I had no electrical problems until after having engine pulled and reinstalled. Then the charging system did not work. Appeared coil was over heating so tach wire disconnected. Then the ignition switch would not kill the engine. Any thoughts or recommendations appreciated.
Thanks in advance. ...Dan |
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11-08-2006, 05:33 AM
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#2 |
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Senior Member
 
Join Date: Feb 2002
Location: Tucson, AZ USA
Posts: 7,357
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Re: Please Help - Electrical Gremlins
External regulator?
HEI? Old wiring harness? Did you do the R&R yourself or some shop?
__________________
Every 25 years I like to rebuild that 292, whether it needs it or not. |
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11-08-2006, 11:24 AM
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#3 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,945
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Re: Please Help - Electrical Gremlins
Did you put all the ground strapes back on it. Valve cover ground, block ground, motor ground, body ground. If not you need to.
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71  Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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11-08-2006, 11:03 PM
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#4 |
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Senior Member
Join Date: Mar 2002
Location: Bartlett, TN
Posts: 348
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Re: Please Help - Electrical Gremlins
68/Andy-
Internal regulator. Non-HEI. Old wiring harness. Shop did the R&R. Will check the ground straps. Thanks for the input. ...Dan |
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11-09-2006, 05:22 AM
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#5 |
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Senior Member
Join Date: Feb 2002
Location: Tucson, AZ USA
Posts: 7,357
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Re: Please Help - Electrical Gremlins
Run a check on your alternator. It's free at some auto parts chains.
Also go thru the wiring harness from the bulkhead connector all the way out to the headlight grounding leads at the end and inspect all the connections. Dress them up bright with a small thin file, zap out the female connections with a tech spray, and dab a minute amount of silicone dielectric grease on the male lead before reconnecting. While it's apart run a continuity check from the pin on the bulkhead connector to the ternimal on each line's end. You should find any opens [breaks in the line]that way. If not, at least then you'll know there's no more corrosion and everything's connected right. I don't trust shops. Also after 34 years some of the copper strands in the original harness may have gotten brittle. I was reconnecting the yellow lead to my coil (points set- up) on my 292 L6 in the '68 Stepside, and 4" of the end came off in my hand! M&H Wiring makes a perfect, American made, set of wiring harnesses for these trucks. They're not cheap, but they are perfect.
__________________
Every 25 years I like to rebuild that 292, whether it needs it or not. |
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11-09-2006, 08:32 PM
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#6 |
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Senior Member
Join Date: Mar 2002
Location: Bartlett, TN
Posts: 348
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Re: Please Help - Electrical Gremlins
Hey 68, thanks for the follow up info. I plan to start with the alternator and work through your recommendations this weekend. Hopefully I will isolate the issue sooner than later and a new harness will not be required. Thanks again and I will let you know what I find.
...Dan |
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