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  1. N

    Why would this happen

    The brighter pulses should be on the side of the gauge fed by the limiter.. is that the case? When you look at the bright test light pulses, do the light pulses seem to be really short compared to the off times between the light pulses? (Normal would be round 18% 'on' duty cycle.) And are...
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    fusible link

    Mmmmmm.....I'm an electrical engineer. No need to explain 'common knowledge' of electrical circuits and wiring ... LOL. The copper in house wiring and auto wiring is of similar grade and electrical properties, so the phrase 'better quality' makes no sense. But none of that helps the OP at all.
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    Oval shape rubber firewall plug

    The one on the passenger side is a flap to close off hot engine air, but also that allows rain water falling into the louvers at the windshield base to flow out of the heating and venting system in the cowl. That is the one that gets full of leaf crud.
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    62 Dodge 4dr to 2dr swap

    The basic process is: You take everything out, drill/grind out the welds on the top and bottom of the 4-door B pillar where it connects to floor and roof. Do the same on the 2-door, and pull out the B pillars plus cut the side sheet metal back aways to come with them. Put them in the 4-door; the...
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    fusible link

    It is certainly feasible. But both are fuses. The fusible link has the property of being more forgiving for transient overloads than regular fuses so that is why they got used as a main fuse. Wait a minute... the car chase in Bullitt is starting...... I keep hoping the Charger survives.....Oh...
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    Voltage Regulator - Best Street Choice?

    Not exactly. Battery voltage without any charging going on and with the battery 'rested' (i.e., with the internal surface charge dissipated that occurs during charging), the voltage of the battery by itself is an indication of battery condition. When charging is going on, the battery can be...
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    Voltage Regulator - Best Street Choice?

    All the others should give you higher voltage than the race only regulator. To what point in the system is your AutoMeter gauge connected? What alternator do you have? Does it have 2 smaller wires to field connections on the back, or just 1? You may have to do some troubleshooting to...
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    Fuel sender wits end 66 coronet

    Well it certainly sounds like the new limiter is faulty; it should either show a constant 5v or the pulsing; constant 10V is bad or is the wrong part. I have to wonder if that has damaged the sensors or gauges. Tesign wil lhave to be done to figure that out. BTW, while you are at ti, check you...
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    70 GTX gauge problems

    OK, Max, I re-read all the last 10 or so posts. Looks like we concluded long ago that you have a constant 5V output regulator, and the temp sensor is reading at 20 ohms warmed up. ; I kinda lost track of all the info from November. If you can mange to get a 22 ohm resistor and run the last...
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    Fuel sender wits end 66 coronet

    You may have multiple issues. You're gonna have to take it one step at a time and test everything as laid out. Otherwise, you'll just chase your tail around and around. 1. Please list the brand/model of limiter you have so we can look it up and figure out how it should work. Some supply a...
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    Fuel sender wits end 66 coronet

    Ummm you don't check the sender with an 'ampmeter'; you measure the sender's resistance (ohms). Select a low resistance scale; put your meter on one of the scales with the Greek letter Omega; one common low scale is 200 (ohms). You want to be able to read in the range of 10 to 100 ohms. Check...
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    70 GTX gauge problems

    Well, that is not exactly the test you need to run. First, with the key in RUN, measure voltage from the temp sensor wire, with the red (+) lead of the voltmeter on that wire while disconnected from the sensor, and the other meter lead to chassis ground. If you still get 5 volts, then that says...
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    Starter Relay

    Then most likely the solenoid action is weak, there is crud on the shaft preventing the bendix from sliding properly, or the one way clutch in the bendix itself is failing. I'd rework or replace the starter as a next step. There's no way to test the gear under load that I know of. Sometimes, if...
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    AMD Full floor pan 1965 Coronet

    Cool; if you have any pix, posting them would be would be nice to see.
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    Starter Relay

    NO; the starter relay would not do that. The problem is in the solenoid on the starter, the bendix gear that the solenoid throws into the ring gear, the ring gear teeth are ground off, or the starter is not aligned properly. The latter 2 seem more likely if you replaced the starter with the same...
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    Ignition Voltage Drop between "start" and "run" | EZ EFI issue

    As an alternative, you can take a feed from the IGN1 and from the IGN2 lines separately, and feed each through 2 diodes to a relay coil. In this way, either can power the relay coil through the 2 diodes, and the relay contacts can switch the 12v to your device. However, the one issue may be that...
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    69 Coronet Blowing Fuse No. 5

    Harbor Freight fuses have been recalled for false blows. So get rid of them. The ammeter going from discharge to charge when you go from idle to cruise or accelerating, within reason. You should use a voltmeter to check the voltage across the battery when at normal idle versus FAST idle (low...
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    Troubleshooting nuetral safety switch

    If you have had a transmission rebuild or modification, there is a part in the trannie that activates the NSS, called the 'cockscomb'; there are 3 different types and you have to have the right one for your particular trannie. Also, there are 2 different NSS's and one is longer than the other...
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    100a alternator wiring question.

    One thing to note: seeing 12.8 or so from the alternator is NOT an adequate test of the alternator. You can see even over 13 volts from the alternator with all but one diode blown, and you can see the high 12 volt range with the regulator blown and just the residual magnetism in the rotor core...
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    100a alternator wiring question.

    The suggestion is for the alternator output to go to the big lug on the starter relay. That 'big lug' should not have a wire going to the starter. Stock, it should have one wire from the battery and another wire (the fusible link) going to the firewall. The wire from the starter relay to the...
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