Changing Entire Speedo Cable, whats this??
#1
Eats, Sleeps, Dreams Rotary
![](https://www.rx7club.com/images/misc/15_year_icon.png)
Thread Starter
![Question](https://www.rx7club.com/images/icons/icon5.gif)
Hey whats up.
So im putting in a new speedocable. The cable that goes inside the speedo enclosure got lost when it came undone from the tranny. So i had to get teh whole thing from Mazdatrix. So i disconnected the cable from the tranny so i can have more leverage behind the gage cluster. I disconnected the speedo cable from teh cluster and am in the process of pulling it out.
Now it wont come out that easy cause of the clip, but i see that theres a white wire going inot the back of the cluster but its not connected to the CLUSTER. So what is this wire.
I have no time to trace the wire right now cause i gotta be out and it looks like its gonna rain. I just want to know what that wire is. So that when i go to put in the new cable i know what its for and how not to damage it. Lol
Here are some Pics
![](http://i8.photobucket.com/albums/a38/NYCROTARYROCKET3/PICT0795.jpg)
![](http://i8.photobucket.com/albums/a38/NYCROTARYROCKET3/PICT0800.jpg)
![](http://i8.photobucket.com/albums/a38/NYCROTARYROCKET3/PICT0805.jpg)
![](http://i8.photobucket.com/albums/a38/NYCROTARYROCKET3/PICT0809.jpg)
P.S Anything else i should do while its disconnected, some maintenance?
Jason NYC
So im putting in a new speedocable. The cable that goes inside the speedo enclosure got lost when it came undone from the tranny. So i had to get teh whole thing from Mazdatrix. So i disconnected the cable from the tranny so i can have more leverage behind the gage cluster. I disconnected the speedo cable from teh cluster and am in the process of pulling it out.
Now it wont come out that easy cause of the clip, but i see that theres a white wire going inot the back of the cluster but its not connected to the CLUSTER. So what is this wire.
I have no time to trace the wire right now cause i gotta be out and it looks like its gonna rain. I just want to know what that wire is. So that when i go to put in the new cable i know what its for and how not to damage it. Lol
Here are some Pics
![](http://i8.photobucket.com/albums/a38/NYCROTARYROCKET3/PICT0795.jpg)
![](http://i8.photobucket.com/albums/a38/NYCROTARYROCKET3/PICT0800.jpg)
![](http://i8.photobucket.com/albums/a38/NYCROTARYROCKET3/PICT0805.jpg)
![](http://i8.photobucket.com/albums/a38/NYCROTARYROCKET3/PICT0809.jpg)
P.S Anything else i should do while its disconnected, some maintenance?
Jason NYC
#3
Eats, Sleeps, Dreams Rotary
![](https://www.rx7club.com/images/misc/15_year_icon.png)
Thread Starter
Originally Posted by Icemark
The white wire is something aftermarket, probably for an aftermarket security system or something like that.
i KEEP TUGGING on my speedo cable trying to get it out and it wont come out cuase of that white wire
I dunno what its for i dont have anything electronic besides a sony headunit. I have no alarms or anything
Jason NYC
#4
Rotary Enthusiast
![](https://www.rx7club.com/images/misc/05_year_icon.png)
Join Date: Jul 2004
Location: Lubbock,Tx
Posts: 881
Likes: 0
Received 0 Likes
on
0 Posts
Has to be something aftermarket that was there from a previous owner.
Never really seen a speedo cable that comes with a wire through the plastic surround. Someone just used that as a spot to safely run a wire.
Just follow the wire and see if it has a point where you can either disconnect it or cut it and reconnect it.
I changed my speedo cable out and there was nothing there like that. I also didn't have to take apart my dash. I just took off the bottom side under the steering wheel and was able to reach up behind the gauges and plug it in.
Mike
Never really seen a speedo cable that comes with a wire through the plastic surround. Someone just used that as a spot to safely run a wire.
Just follow the wire and see if it has a point where you can either disconnect it or cut it and reconnect it.
I changed my speedo cable out and there was nothing there like that. I also didn't have to take apart my dash. I just took off the bottom side under the steering wheel and was able to reach up behind the gauges and plug it in.
Mike
#5
Eats, Sleeps, Dreams Rotary
![](https://www.rx7club.com/images/misc/15_year_icon.png)
Thread Starter
I cut it car does not start now. I followed the wire under the dash and i lost it under the steering column. Its bunched together with a whole bunch of other wires and ziptied together. So i followed the wire under the car and it appears to be going into the starter. Now i know everyone on two forums keeps saying it doesnt belong there but my car doesnt have an aftermarket alarm system and no signs it ever had one. Now i can just connect the friggin wire and make it work, but i want to know why its there.
Here are some more pics
![](http://i8.photobucket.com/albums/a38/NYCROTARYROCKET3/PICT0810.jpg)
![](http://i8.photobucket.com/albums/a38/NYCROTARYROCKET3/PICT0814.jpg)
Jason NYC
Here are some more pics
![](http://i8.photobucket.com/albums/a38/NYCROTARYROCKET3/PICT0810.jpg)
![](http://i8.photobucket.com/albums/a38/NYCROTARYROCKET3/PICT0814.jpg)
Jason NYC
#7
Eats, Sleeps, Dreams Rotary
![](https://www.rx7club.com/images/misc/15_year_icon.png)
Thread Starter
Originally Posted by Icemark
well I see Botch locks in there , so you have something aftermarket installed.
i DONT know what ure referring too? First time i ever get a real look under there and dunno what to look for.
![](http://i8.photobucket.com/albums/a38/NYCROTARYROCKET3/PICT0810-2.jpg)
Jason NYC
Trending Topics
#8
Former Moderator. RIP Icemark.
Originally Posted by ROTARYROCKET7
i DONT know what ure referring too? First time i ever get a real look under there and dunno what to look for.
![](https://www.rx7club.com/attachments/2nd-generation-specific-1986-1992-17/177125-changing-entire-speedo-cable-whats-underdash-delme.jpg)
Scotch Locks (often referred to a botch locks, because they come undone and are really only temporary connections- yet some aftermarket electronics installers use them as a permanent connection).
They are not factory by any means and should never be used for anything but a temporary connection
![](http://i8.photobucket.com/albums/a38/NYCROTARYROCKET3/PICT0810-2.jpg)
Jason NYC
It appears to be going to the ignition switch, but the steering column surround is still there so you can't tell.
Where does it go under the hood?
Last edited by Icemark; 05-25-06 at 09:15 PM.
#9
Eats, Sleeps, Dreams Rotary
![](https://www.rx7club.com/images/misc/15_year_icon.png)
Thread Starter
Originally Posted by Icemark
![](https://www.rx7club.com/attachments/2nd-generation-specific-1986-1992-17/177125-changing-entire-speedo-cable-whats-underdash-delme.jpg)
Scotch Locks (often referred to a botch locks, because they come undone and are really only temporary connections- yet some aftermarket electronics installers use them as a permanent connection).
They are not factory by any means and should never be used for anything but a temporary connection
You will need to see where it is running or just hook it back up after you have replaced your speedo cable.
It appears to be going to the ignition switch, but the steering column surround is still there so you can't tell.
Where does it go under the hood?
Thanks for your help ICE. I followed it and it goes all the way under the car towards teh starter. Then from there i cant see it. Ima jack up the car more and see where it runs.
What are those botch things used for since i dont have an alarm or anything aftermarket.
I already put the SPeedocable on. Now i just gonna connect that wire to get the car started. But still want to follow the wire and and see whats up.
Jason NYC
Last edited by ROTARYROCKET7; 05-25-06 at 10:30 PM.
#10
Eats, Sleeps, Dreams Rotary
![](https://www.rx7club.com/images/misc/15_year_icon.png)
Thread Starter
Yeah the cable is run right onto the starter.
Can i get a switch that opens and closes the circuit (toggle switch). Kinda like a ghetto rig security system?
What gauge wire is that?
Jason NYC
Can i get a switch that opens and closes the circuit (toggle switch). Kinda like a ghetto rig security system?
What gauge wire is that?
Jason NYC
Last edited by ROTARYROCKET7; 05-25-06 at 11:48 PM.
#12
Eats, Sleeps, Dreams Rotary
![](https://www.rx7club.com/images/misc/15_year_icon.png)
Thread Starter
![Thumbs up](https://www.rx7club.com/images/icons/icon14.gif)
Originally Posted by 90WhiteVrt
^I dont see why you couldnt. That's not a bad idea.
Can i use any gauge wire for this? I would like to run this switch somewhere secretive on my car
Jason NYC
#14
Eats, Sleeps, Dreams Rotary
![](https://www.rx7club.com/images/misc/15_year_icon.png)
Thread Starter
Originally Posted by bigdongsr94
thread jack, does a TII tranny work with the NA speedo cable. Did the swap and now i have no speedo. Any tricks to reinstalling the cable to the tranny.
WEll i had an auto transmission and when i converted to manual i used the auto speedo on manual tranny and it worked. I lost taht cable so i purchased a new speedo from mazdatrix and i got the manual one, its just a little shorter than the auto but the cable is the same. So t2 tranny cablea and non turbo should be the same and should work.
No real tricks just gotta make sure the lil notch goes into the tranny hole and then you just tightening the speedocollar and ure set.
MAKE SURE THE COLLAR is tight, my **** came loose and i had to pay $50+ for a new friggin cable
Jason NYC
Last edited by ROTARYROCKET7; 05-26-06 at 01:59 PM.
#16
Senior Member
![](https://www.rx7club.com/images/misc/15_year_icon.png)
I had my speedo cable come unscrewed from the tranny while driving too. I grabbed a couple different cables from the junkyard, the only difference I found was the lengths. Internally they all looked the same. I left my old sleeve and just oiled and slid the new cable inside it. Didn't have to take the dash apart, only cost me a few dollars for the cable. =)
#18
Eats, Sleeps, Dreams Rotary
![](https://www.rx7club.com/images/misc/15_year_icon.png)
Thread Starter
Originally Posted by daten
I had my speedo cable come unscrewed from the tranny while driving too. I grabbed a couple different cables from the junkyard, the only difference I found was the lengths. Internally they all looked the same. I left my old sleeve and just oiled and slid the new cable inside it. Didn't have to take the dash apart, only cost me a few dollars for the cable. =)
Jason NYC