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  1. [Electrical] If your battery reads 9.8 volts without any...

    If your battery reads 9.8 volts without any loads, it is pretty much fully discharged. Yes that probably causes the relay to chatter.
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    [General] I had a Hervey alternator and guess I got lucky...

    I had a Hervey alternator and guess I got lucky and it's still going strong in another D. I've heard a few complaints about the Hervey alternator squealing.
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    [Wanted] I think the stock otterstat is 96 C on and 88 C...

    I think the stock otterstat is 96 C on and 88 C off. That would be 204.8 F and 190.4 F
  4. [Electrical] Most likely the flex circuit board in the...

    Most likely the flex circuit board in the binnacle is the cause for bad connection.
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    [Engine] Your using dwell. So book number are correct. ...

    Your using dwell. So book number are correct. Duty cycle numbers are 10% higher than dwell numbers.
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    A many tooth tach wheel on the crank would give...

    A many tooth tach wheel on the crank would give you much faster RPM response readings even with an even fire engine. The odd fire engine you have to use two ignition pulses to measure RPM which even...
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    [Engine] You set your dwell with the hot engine. What...

    You set your dwell with the hot engine. What your seeing are pretty small changes. Are you reading dwell or duty cycle? I ask because WOT reads 60% duty cycle. I still think your dwell adjustment...
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    [General] Got my order from DeLorean-go today. Aside from...

    Got my order from DeLorean-go today. Aside from the needed clutch kit, I got the binnacle flex PCB, the screw in otterstat pipe and one of the new window switch connectors.

    Now I will look for a...
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    That looks better. What happens is when current...

    That looks better. What happens is when current is abruptly stopped (driver turning off), the magnetic field collapses and that induces a voltage in the coil. That voltage can than ring (oscillate...
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    That may work. I would have put 12 volts to the...

    That may work. I would have put 12 volts to the coil and the other side of the coil to the tach input and the driver (transistor or MOSFET).
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    The RPM relay requires greater than a 12 volt...

    The RPM relay requires greater than a 12 volt pulse. As stated by FABombjoy, that inductive spike is needed to get higher than the cars 12 volts. The stock idle ECU is the same (greater than 12 volt...
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    [Engine] My car goes closed loop in about 15 seconds from...

    My car goes closed loop in about 15 seconds from a cold start. I don't have the WOT/temp sensor wire hooked up to the lambda ECU. I have a "power" switch that sets 13 AFR if I want to get more...
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    [Transmission 5-Speed] That would be great. I'll let you know when I...

    That would be great. I'll let you know when I will be doing the work. It may have to wait till grandkids are on winter break.
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    [Transmission 5-Speed] Now you tell me.:8ball: I was getting some...

    Now you tell me.:8ball:

    I was getting some other parts anyway so did not even think to shop around.
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    [Engine] Yes some cars always prime the system with the...

    Yes some cars always prime the system with the key on using the OEM RPM relay. The OEM RPM relay does not have a circuit designed to do that, it just happens to see and ignition pulse when the key...
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    [Transmission 5-Speed] My dust shield for the magnetic pickup was just...

    My dust shield for the magnetic pickup was just hanging (on the exhaust) when I bought my car. I guess when the clutch was replaced they could not bolt it back up. So I just removed the plate and...
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    [Engine] It's great your making progress. I would suggest...

    It's great your making progress. I would suggest your WOT switch is intermittent. I've seen a few go bad. Just unplug one of the wires off the switch and see if that cures your problem.
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    [For Sale] Would like the air metering unit, stock fuel...

    Would like the air metering unit, stock fuel lines and the other fuel lines. I may make a distributor test set up. PM me your PayPal and total cost including shipping to Maryland.
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    [General] You really don't need a fast scope for auto work...

    You really don't need a fast scope for auto work but this is the one I have. The price has even dropped.

    https://www.circuitspecialists.com/hantek-200mhz-digital-storage-oscilloscope-dso5202p.html
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    [General] I don't see any reason to have it mounted on the...

    I don't see any reason to have it mounted on the ground as opposed to the positive post.
  21. Looks like a neat job with the rewire but you...

    Looks like a neat job with the rewire but you would not want to drop a screwdriver down there. Don't see the reason to use the terminal blocks since they just provide another point of failure. He...
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    [Electrical] Yes the crimps are another critical point of...

    Yes the crimps are another critical point of failure. The proper crimp on the open barrel pins is very reliable. My test setup has all the crimp joints soldered because I was probably exceeding...
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    [Transmission 5-Speed] Thanks for all the suggestions. I'm going to...

    Thanks for all the suggestions. I'm going to delay doing much of anything with the clutch problem mostly because of limited and trying to keep up building inventory of my products. My otterstat has...
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    [Heat & A/C] Dry Nitrogen would be fine to keep the unit dry...

    Dry Nitrogen would be fine to keep the unit dry until you recharge it. But it's mostly just used for pressure testing. Not many of us keep a tank of nitrogen around.
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    [Electrical] Relay socket connectors

    I just got a new power supply for my bench testing of my products. This new supply is an adjustable 0 to 15 volt 0 to 60 amp. supply capable of constant voltage or constant current. So to test the...
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