83 t/a tach not working after cap and rotor changed
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Joined: Sep 2014
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From: Trenton, Ontario , Canada
Car: 1983 T/A ws6
Engine: 5.0l
Transmission: th200c
Axle/Gears: not sure
83 t/a tach not working after cap and rotor changed
So I decided to change the cap and rotor on my t/a. Put it all back together and fired it up and noticed my tach is reading 5500rpm. It creeps past 6000 rpm and the just kinda goes where ever it wants. On one note , I never disconnected the battery during the cap and rotor change. Did I fry something?? If I did , where do I start looking?
Joined: Apr 2000
Posts: 3,938
Likes: 99
From: Huntsville AL
Car: 88GTA
Engine: 5.7TPI
Transmission: Auto
Axle/Gears: 3.27
Re: 83 t/a tach not working after cap and rotor changed
^^^^^^What THAT says! And make sure the 2 wire connector is plugged in and is making a good connection.
Thread Starter
Junior Member
Joined: Sep 2014
Posts: 10
Likes: 0
From: Trenton, Ontario , Canada
Car: 1983 T/A ws6
Engine: 5.0l
Transmission: th200c
Axle/Gears: not sure
Re: 83 t/a tach not working after cap and rotor changed
So the white wire to the distributor is the signal wire for the tach right? And the red wire adjacent to it powers the coil?
Joined: Apr 2000
Posts: 3,938
Likes: 99
From: Huntsville AL
Car: 88GTA
Engine: 5.7TPI
Transmission: Auto
Axle/Gears: 3.27
Re: 83 t/a tach not working after cap and rotor changed
Yes, what engine?
5.0 carb:
http://austinthirdgen.org/mkportal/m...ine_wiring.gif
http://www.austinthirdgen.org/?pid=19
5.0 carb:
http://austinthirdgen.org/mkportal/m...ine_wiring.gif
http://www.austinthirdgen.org/?pid=19
Joined: Apr 2000
Posts: 3,938
Likes: 99
From: Huntsville AL
Car: 88GTA
Engine: 5.7TPI
Transmission: Auto
Axle/Gears: 3.27
Re: 83 t/a tach not working after cap and rotor changed
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Joined: Apr 2000
Posts: 3,938
Likes: 99
From: Huntsville AL
Car: 88GTA
Engine: 5.7TPI
Transmission: Auto
Axle/Gears: 3.27
Re: 83 t/a tach not working after cap and rotor changed
Just a quick word of advice.......finish your profile so we all know what your vehicle is.
Thread Starter
Junior Member
Joined: Sep 2014
Posts: 10
Likes: 0
From: Trenton, Ontario , Canada
Car: 1983 T/A ws6
Engine: 5.0l
Transmission: th200c
Axle/Gears: not sure
Re: 83 t/a tach not working after cap and rotor changed
Ok. Well I know where to look...I had those particular connectors apart and back together thinking one of them isnt connecting...so I popped the cap off the coil and pushed the prongs down into the connector to makes sure they didnt get pushed back when I plugged the connectors in. Still no change . Wtf!
Thread Starter
Junior Member
Joined: Sep 2014
Posts: 10
Likes: 0
From: Trenton, Ontario , Canada
Car: 1983 T/A ws6
Engine: 5.0l
Transmission: th200c
Axle/Gears: not sure
Re: 83 t/a tach not working after cap and rotor changed
Turns out that I forgot to put the ignition coil strap in . Its in now ,but still the tach is not working. Thinking maybe try a new coil???
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Posts: 3,341
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From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
A Tach Plan
If the engine runs you but the tach won’t, it’s not the coils’ fault.
Find out if you’re getting a signal on the WHITE wire by putting spare marker bulb and speaker in series with the WHITE
wire and ground.
If the WHITE wire has a signal you will hear it as a buzz that increases with RPM.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing !
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
I Didn’t Jump The Start, The Flagman Was Late
Find out if you’re getting a signal on the WHITE wire by putting spare marker bulb and speaker in series with the WHITE
wire and ground.
If the WHITE wire has a signal you will hear it as a buzz that increases with RPM.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing !
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
I Didn’t Jump The Start, The Flagman Was Late
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