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wjajr, thanks for your reply. Do you have any recommendations for what I can use to shield the signal wire? :salute:

Cracked, my in car (psycho) tach is wired as you suggest. My hand held tach that I use when I tune was attached as described in my last post.

I was doing some tuning yesterday. Had my hand held underhood tach hooked up as follows: positive lead to coil -ve and -ve lead to ground. Not only did the underhood tach work perfectly, but to my amazement, the psycho tach on my steering column works flawlessly as well! :scratch: When done...

I put new plugs and wires in on Wednesday. Today I replaced the coil with a new one. Tach still the same. I'll check the cap and rotor next. If they are ok, then I'll do the voltage tests. Thanks for the help. :banghead:

The connection at the coil is fine. I'll check the lead and ground tomorrow.

It's radio delete and therefore no stereo equipment. It was wired before I took over the build, so I am not sure on the hot lead. Wires run through the steering column, so I was hoping I wouldn't have to drop the column. Unfortunately, I can't pick out the wires coming through the column...

My tachometer worked fine until a few weeks ago. Now the needle bounces all over the place with no correlation to the engine speed. :wack: I have a '71 340 with a Mopar Performance Electronic ignition and a chrome ECU. The tachometer is a Stewart-Warner Deluxe Series 0-8,000rpm. Does anyone...

I followed the advise given in the tech section of www.madelectrical.com I took your advice and ran a ground from the engine block to the voltage regulator. I also took the alternator to an auto electric shop and it tested ok. I completed the ammeter bypass and ran an 8 guage wire from the...

OK. Will scrape away tonight! I'll be out of town for 6 days starting tomarrow evening. When I get back , I'll begin to explore the voltage drop problem. Thanks again to you and Nothingbutdarts for the help. :salute:

Redfish, thank you for your input. How do you recommend grounding the voltage regulator properly? Amp guage is bypassed, so voltage drop should be coming from the bulkhead connections and/or ignition switch or it's harness connector, right? As per your recommendations, I will address the...

Thanks for helping, Nothingbutdarts. Here's what I came up with: Ohm meter check from the alternator case to the voltage regulator case was infinite. With key on, blue wire on the regulator connector has 11.2 volts. Ohms test of the green wire from the regulator connector to the push on field...

It's one ballast with 2 poles. Here's what I got today: Key off - 12.5 volts at battery / 0.0 to dbl field wire. Key on: 12.1 volts to battery / 10.0 volts to dbl field wire. Previous owner messed with harness and now I'm dealing with it. It looks like I am missing the ground from engine block...

My '73 Swinger has a charging and/or wiring problem and I can't figure it out. :angry7::angry5::angryfir::angry1:angry9: Originally a 318 car, I got the car with no engine and have since installed a 340. It has a Mopar Performance chrome electronic ignition with a Mopar electronic voltage...