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In the shop at Pelican
Join Date: Aug 2002
Location: Los Angeles, CA
Posts: 10,459
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MSD Tach adapter Question
I've been outting a MSD 6A in my cousin's 1983 911SC, just got around to installing the tach adapter, Got everything mounted, except for I dont know what wire in the engine bay goes to the tach and to terminal "TD" any help? I really would prefer to use an existing wire, rather than having to route a new one
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10-20-2003, 07:39 AM
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Registered
Join Date: Jul 2003
Location: Central NJ
Posts: 167
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The black wire with the purple stripe from the cd box is to the tach. Hope that helps.
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10-20-2003, 09:09 AM
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In the shop at Pelican
Join Date: Aug 2002
Location: Los Angeles, CA
Posts: 10,459
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Is it located in that connector block at the very rear of the electrical panel on the left side?
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10-20-2003, 09:11 AM
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Registered
Join Date: Jul 2003
Location: Central NJ
Posts: 167
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If you mean the 14pin harness connector then I'm not sure. When I swapped the 3.0 for my 2.7 I couldn't get my tach to work. I found that the black wire with purple stripe from the cd box was grounding out in the 14pin connector. I removed it from that connector and spliced it into the 2 wire connector by the cd harness, one is red for something else while the other is for the tach. Now it works fine. Souk seems to know a lot about these, so if your still stuck pm him.
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10-20-2003, 09:18 AM
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Registered
Join Date: May 2001
Location: Bay Area
Posts: 496
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These are the two threads I used to install my Crane HI-6, Jared:
MSD Install Notes for SC MSD wiring advice (connectors) Are you sure a tach adapter is necessary for that SC? Let me know if you get stuck.
__________________
Eugene (Formerly) at Pelican Parts Pelican's E-Commerce Guy, 2003-2011 2001 330i Sport 1983 911SC Coupe (sold) |
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10-20-2003, 09:40 AM
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Unoffended by naked girls
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A tach from a 79 works using the tach output on the MSD box. Try that before you buy an adapter.
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Dan 1969 911T (sold) 2008 FXDL www.labreaprecision.com www.concealedcarrymidwest.com |
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10-20-2003, 09:48 AM
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In the shop at Pelican
Join Date: Aug 2002
Location: Los Angeles, CA
Posts: 10,459
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I already have the adapter. So basically i just have to look for the black/purple wire under the engine relay board, then splice the tach adapter lead in, right?
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10-20-2003, 09:50 AM
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Registered
Join Date: May 2001
Location: Bay Area
Posts: 496
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Like others, I wanted to keep the old wires untouched and retain the factory 6-pin harness, so I got some male spade connectors from Fry's and plugged them right in. A splice is definitely more reliable, but I'm not concerned about the plugs coming loose.
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Eugene (Formerly) at Pelican Parts Pelican's E-Commerce Guy, 2003-2011 2001 330i Sport 1983 911SC Coupe (sold) |
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10-20-2003, 10:06 AM
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In the shop at Pelican
Join Date: Aug 2002
Location: Los Angeles, CA
Posts: 10,459
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I ran out to the car on my lunch break and spliced the tach adapter lead into the black/purple wire on the 14-pin connector and success, tach now works. Thanks guys
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10-20-2003, 02:27 PM
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1969 Porsche 911 T 2.0 L
