Where does the TACH wire comes through the firewall on a 69? - Team Camaro Tech
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post #1 of 12 (permalink) Old Feb 20th, 08, 10:53 PM Thread Starter
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Where does the TACH wire comes through the firewall on a 69?

Thanks in advance!
I am trying to figure out where the tach wire comes through the firewall in a 1969 Camaro. If anybody has a pic that would be great.
Thanks Again
Jack
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post #2 of 12 (permalink) Old Feb 20th, 08, 11:29 PM
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Steve
 
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Re: Where does the TACH wire comes through the firewall on a 69?

Do you have a 1969 Camaro Factory Assembly Manual?
It will tell you exactly where in U16-A1, page 413.

Nov 68 Van Nuys. 327 floor-shift-auto, Frost Green and not much else when new.

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post #3 of 12 (permalink) Old Feb 23rd, 08, 08:22 PM Thread Starter
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Re: Where does the TACH wire comes through the firewall on a 69?

Blackout,
According to the pic in my AIM the hole for the TACH wire comes out right below where the FUSE BLOCK comes thru the firewall. Is this correct??
I think the AIM is really difficult to read. I mean it is so messy and seems so vague. I know everybody always says "look at your AIM, it shows it in there". I have the AIM and I think it kind of sucks because it is so hard to read and understand.
Just my opinion.
Jack
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post #4 of 12 (permalink) Old Feb 23rd, 08, 09:10 PM
 
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Re: Where does the TACH wire comes through the firewall on a 69?

Ya I think that is correct it is connected to the fuse box such as all the other wires ie headlights, horn ect.
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post #5 of 12 (permalink) Old Feb 24th, 08, 08:39 AM
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Re: Where does the TACH wire comes through the firewall on a 69?

According to the pic in my AIM the hole for the TACH wire comes out right below where the FUSE BLOCK comes thru the firewall. Is this correct??
I think the AIM is really difficult to read. I mean it is so messy and seems so vague. I know everybody always says "look at your AIM, it shows it in there". I have the AIM and I think it kind of sucks because it is so hard to read and understand.

You need a manual just to read the assembly manual. The manual, on page 413, makes it seem that the wire is run next to the wiring harness, and it aint.

Send me an e-mail and I will send you a sketch I am going to use to find mine.
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post #6 of 12 (permalink) Old Feb 24th, 08, 12:17 PM
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Re: Where does the TACH wire comes through the firewall on a 69?

I put an entire wire harness in my 69. I dont recall any separate tach wire. Pretty sure it goes thru the fuse block with rest of wiring. Only thing I have going thru the firewall are oil line for console gauge & power wire for electric choke.
Scott

69 RS LS3/T56
68 Firebird vert LS1/4L60E
67 RS LS2/T56
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post #7 of 12 (permalink) Old Feb 24th, 08, 04:42 PM
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J.A.
 
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Re: Where does the TACH wire comes through the firewall on a 69?

Scott, yes you are correct.
All wires are within the harness.
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post #8 of 12 (permalink) Old Feb 24th, 08, 08:51 PM
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Re: Where does the TACH wire comes through the firewall on a 69?

My brand new harness has the tach wire coming off the fuse panel on the inside of the car & has to have a hole in the firewall just like the AIM shows
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post #9 of 12 (permalink) Old Feb 24th, 08, 10:11 PM Thread Starter
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Re: Where does the TACH wire comes through the firewall on a 69?

Brad,
Mine is the same way. I am just not sure where the hole is suppose to be. I have to drill the hole because this car NEVER had a Tach from the factory. So I am trying to nail down exactly where the hole is so I can drill it correctly.
Nobody seems to know exactly that is why I was kind of hoping for a picture of a firewall with the tach wire coming through.
Jack
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post #10 of 12 (permalink) Old Feb 25th, 08, 10:52 AM
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Steve
 
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Re: Where does the TACH wire comes through the firewall on a 69?

"You need a manual just to read the assembly manual. The manual, on page 413, makes it seem that the wire is run next to the wiring harness, and it aint."

It does!
The tach option is exactly that.. An option. It was not wired into the existing harness because it was not a standard component.

The AIM is easy to understand if you pay attention to details.

In RPO-U16 View A, it clearly shows that a 17/32" (+/-1/64") dimeter hole is required 0.8" below, and 1.0" across (inboard) from the existing lower fusebox mounting screw hole.

To me, that's not vague or hard to understand, and it's very specific.

Use an Irwin Unibit to drill. They wont chew up your sheetmetal.
1/2" or 9/16" will be close enough to 17/32".

Nov 68 Van Nuys. 327 floor-shift-auto, Frost Green and not much else when new.

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post #11 of 12 (permalink) Old Feb 26th, 08, 05:47 PM Thread Starter
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Re: Where does the TACH wire comes through the firewall on a 69?

Blackout,
I drilled mine last night with that exact bit!! Yes, you are right. I sat down and read that page and it did make perfect sense after all.
Thanks Again
Jack

Last edited by jackhammer505; Feb 27th, 08 at 08:41 AM.
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post #12 of 12 (permalink) Old Feb 26th, 08, 10:54 PM
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Re: Where does the TACH wire comes through the firewall on a 69?

Good stuff!

Nov 68 Van Nuys. 327 floor-shift-auto, Frost Green and not much else when new.

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