In my MGB I've used the modification posted at the end of the EDIS section with the 2 rectifiers and the diode in order to hook up my in-dash tach. This works perfectly up until 2500 rpm then the tach just drops to 0 until the rpm drops below 2500 again and it will start working again.
Any ideas anyone?
Thanks!
Tyler
EDIS tach question
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Read the manual to see if your question is answered there before posting. If you have questions about MS1/Extra or MS2/Extra or other non-B&G code configuration or tuning, please post them at http://www.msextra.com The full forum rules are here: Forum Rules, be sure to read them all regularly.
Read the manual to see if your question is answered there before posting. If you have questions about MS1/Extra or MS2/Extra or other non-B&G code configuration or tuning, please post them at http://www.msextra.com The full forum rules are here: Forum Rules, be sure to read them all regularly.
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Bernard Fife
- Super Squirter
- Posts: 1009
- Joined: Mon Feb 16, 2004 3:15 pm
Tyler,
The schematic calls for a 1N4746 Zener diode, which is an 18 Volt Zener diode. You might need slightly more than this, depending on the coils, your wiring, the tolerance on the diode, and a million other subtle factors (or you might need slightly less Zener voltage, for the same reasons).
I would try a 22 Volt Zener (1N4748), or a 16 Volt Zener (1N4745) if that doesn't work. Let us know what you find.
Lance.
The schematic calls for a 1N4746 Zener diode, which is an 18 Volt Zener diode. You might need slightly more than this, depending on the coils, your wiring, the tolerance on the diode, and a million other subtle factors (or you might need slightly less Zener voltage, for the same reasons).
I would try a 22 Volt Zener (1N4748), or a 16 Volt Zener (1N4745) if that doesn't work. Let us know what you find.
Lance.