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Total 8 documents matching your query.

1. optical ignition question (score: 1): Author: "Cady, Richard H" <richard.cady@eds.com>; Date: Tue, 6 Mar 2001 10:28:01 -0500; I have a '70 MGB where the positive lead to the coil is routed through the tachometer. Will an optical ignition unit such as the Crane XR700 require that I rewire the leads through the tachometer? Th; /html/mgs/2001-03/msg00251.html (7,250 bytes)
2. RE: optical ignition question (score: 1): Author: "Cady, Richard H" <richard.cady@eds.com>; Date: Tue, 6 Mar 2001 11:16:46 -0500; Thanks Rick, According to the schematic: www.cranecams.com/ignition1/wiredia1.htm the tachometer needs to be connected between ground and the negative terminal of the coil. The original routing for t; /html/mgs/2001-03/msg00263.html (8,788 bytes)
3. Re: optical ignition question (score: 1): Author: "R. O. Lindsay" <rolindsay@dgrc.com>; Date: Tue, 06 Mar 2001 09:57:37 -0600; Good question Richard. Brainstorming: The tach uses an inductive pick up, I believe, as the ignition wire goes through a little loop inducing a pulse into the tach electronics. It seems then, that to; /html/mgs/2001-03/msg00266.html (8,114 bytes)
4. Re: optical ignition question (score: 1): Author: <paul.hunt1@virgin.net>; Date: Tue, 6 Mar 2001 16:48:02 -0000; You may well need a module to drive your existing tach, or swap the tach for the later voltage-pulse type. PaulH.; /html/mgs/2001-03/msg00268.html (7,654 bytes)
5. Re: optical ignition question (score: 1): Author: Charley & Peggy Robinson <ccrobins@ktc.com>; Date: Thu, 08 Mar 2001 12:19:38 -0800; In a word, No. I've hooked up severla Allison, Crane, Pertronix on circa 1970 Bs. Don't worry about the tach. Cheers, CR; /html/mgs/2001-03/msg00387.html (7,568 bytes)
6. Re: optical ignition question (score: 1): Author: Stuart MacMillan <macmillan@home.com>; Date: Thu, 08 Mar 2001 11:54:55 -0800; That worked, and still does with my new Petronix ignition. So, if your tach bounces around a lot or reads too high, try this. Apparently the extra dwell time EIs provide can affect electric tachs, es; /html/mgs/2001-03/msg00397.html (7,807 bytes)
7. Re: optical ignition question (score: 1): Author: "R. O. Lindsay" <rolindsay@dgrc.com>; Date: Tue, 06 Mar 2001 09:57:37 -0600; Good question Richard. Brainstorming: The tach uses an inductive pick up, I believe, as the ignition wire goes through a little loop inducing a pulse into the tach electronics. It seems then, that to; /html/mgs/2001-03/msg00425.html (8,037 bytes)
8. Re: optical ignition question (score: 1): Author: Charley & Peggy Robinson <ccrobins@ktc.com>; Date: Fri, 09 Mar 2001 08:37:11 -0800; There's also a trim pot under a rubber plug on the back of the tach. This can be adjusted for sensitivity. I'd try that first. Cheers, CR; /html/mgs/2001-03/msg00434.html (7,131 bytes)

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