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Author
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Topic: Ammeter on 69
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69 Sportsroof
Gearhead Posts: 528
From: Valley, Alabama, USA
Registered: Mar 2002
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posted 12-14-2002 01:35 PM
   
While I've got my dash out, isn't there some wire or something that I have to remove or change that will allow my ammeter to work? Right now it just stays in the middle all the time.------------------
1969 Mustang Sportsroof
302 with 3 Speed Stick
!!!Totally Stock!!!
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Pierre
Gearhead Posts: 287
From: France
Registered: Apr 2002
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posted 12-14-2002 01:50 PM
quote:
Originally posted by 69 Sportsroof:
While I've got my dash out, isn't there some wire or something that I have to remove or change that will allow my ammeter to work? Right now it just stays in the middle all the time.
I discovered on my 67 that it stays in the middle because it is factory disconnected and that you only connect it for testing purposes (if it was on all the time it would burn). To connect it, you have to find the connector on the battery side of the relay that has 2 wires tied together to a single loop. When you disconnect this loop you re-route the current through the ammeter. Have someone check the needle when you do that, if intensity is too high you will destroy it ! Don't forget to connect it back when you are done 
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69 Sportsroof
Gearhead Posts: 528
From: Valley, Alabama, USA
Registered: Mar 2002
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posted 12-14-2002 03:37 PM
So, my ammeter is useless? They why put one in? Where is this loop located? I found one under the hood but it's in the harnes going to the rear lights. Is it behind the dash?Thanks.
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Mpcoluv
Gearhead Posts: 665
From: Charlotte NC usa
Registered: Apr 2001
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posted 12-14-2002 06:58 PM
My ammeter works fine on my '69 coupe.It goes to the left when the engine is not running.
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SteveLaRiviere
Administrator Posts: 27815
From: Saco, Maine
Registered: May 99
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posted 12-14-2002 07:26 PM
No, they work. You can see them go back and forth with the turn signals on, or go down when you turn the lights on. If yours are disconnected, Pierre, someone disconnected them.------------------
'70 Mustang Mach 1 - '72 Mustang Sprint - '94 F-150 Be sure to remember our sponsors, Mustangs Plus, NPD, and Osborn Reproductions.
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69 Sportsroof
Gearhead Posts: 528
From: Valley, Alabama, USA
Registered: Mar 2002
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posted 12-14-2002 07:45 PM
Do I just need to plug it in somewhere?
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mustang68mustangs
Gearhead Posts: 210
From: pittsburgh,pa.usa
Registered: Jul 2001
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posted 12-14-2002 07:45 PM
I definately agree with Steve on this one!
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SteveLaRiviere
Administrator Posts: 27815
From: Saco, Maine
Registered: May 99
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posted 12-14-2002 07:49 PM
Do you have a wiring diagram? Should be easy to trace.------------------
'70 Mustang Mach 1 - '72 Mustang Sprint - '94 F-150 Be sure to remember our sponsors, Mustangs Plus, NPD, and Osborn Reproductions.
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69 Sportsroof
Gearhead Posts: 528
From: Valley, Alabama, USA
Registered: Mar 2002
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posted 12-14-2002 11:23 PM
quote:
Originally posted by SteveLaRiviere:
Do you have a wiring diagram?
Only what's in my Hayne's manual. Like that's gonna help...  I'll give it a go tomorrow. Thanks.
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Rory McNeil
Gearhead Posts: 927
From: Surrey, B.C. Canada
Registered: Nov 2000
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posted 12-15-2002 02:26 AM
None of my 69 or 70 Mustangs that had the ammeter had much needle movement, even when my first 70 was still fairly new. Unlike my old 65 Valiant, that thing swung side to side so much with the turn signals on, I though the needle would come flying out of the dash!  ------------------
78 Fairmont 428 4 speed 10.20@130mph
80 Fairmont 302 5 speed 12.8@105mph
85 Mustang NHRA Stocker under construction, 302 5 speed
59 Meteor (Canadian Ford) 2 dr sedan 332, auto
74 F350 ramp truck 390 4spd
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Pierre
Gearhead Posts: 287
From: France
Registered: Apr 2002
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posted 12-15-2002 03:06 AM
quote:
Originally posted by SteveLaRiviere:
No, they work. You can see them go back and forth with the turn signals on, or go down when you turn the lights on. If yours are disconnected, Pierre, someone disconnected them.
All my apologies then
I based my assumptions on the 2" thick Ford shop manual (blue cover for 67) page 13-2 Fig.2 The diagram clearly shows a "shunt type ammeter" and after looking & testing for a few hours that's the conclusion I came to. Especially that the electrical looks authentic
But the following description in the paragraph at the bottom of 13-2 kind of puzzled and did not confirm my theory
Can someone tell me where the Red & yellow wires at the back of my gauge (connected to it in my case) should go too respectively (exact physical location) ?
thanks in advance
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69 Sportsroof
Gearhead Posts: 528
From: Valley, Alabama, USA
Registered: Mar 2002
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posted 12-15-2002 09:38 PM
quote:
Originally posted by Rory McNeil:
None of my 69 or 70 Mustangs that had the ammeter had much needle movement
Mine has no movement at all. It stays dead center all the time.
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stock69
Journeyman Posts: 16
From: kailua, HI
Registered: Oct 2002
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posted 12-15-2002 10:38 PM
i was wondering about that too. my 69 coupes anmeter stays dead center all the time also.
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SteveLaRiviere
Administrator Posts: 27815
From: Saco, Maine
Registered: May 99
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posted 12-16-2002 08:09 AM
I wish my Mach was together go I could look. I know my '72 works great, as did my '71 Cougar.------------------
'70 Mustang Mach 1 - '72 Mustang Sprint - '94 F-150 Be sure to remember our sponsors, Mustangs Plus, NPD, and Osborn Reproductions.
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BlueMule
Gearhead Posts: 223
From: Stevensville, MD, USA
Registered: Sep 2002
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posted 12-16-2002 08:23 AM
Mine in the '70 Mach1 moves. Not like an old Chrysler ammeter, but it does move.------------------
-Paul 70 Mach1
79 Ranchero GT
97 Expedition XLT
00 SVT f150 Lightning 4149 of 4966 Born on: 06/26/2000 'life's tough... it's tougher if you're stupid.'
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indyphil
Gearhead Posts: 235
From: Lafayette, IN, USA
Registered: Jul 2002
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posted 12-16-2002 10:57 AM
my 68 ammeter stays dead center
the haynes manual doesnt help me much. I also have a 2" 67 blue shop manual I may look in it tonight and see what it says.
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