Speedocable - Chevelle Tech
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post #1 of 21 (permalink) Old May 7th, 20, 7:38 AM Thread Starter
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Speedocable

Hi there,

I am lucky to have the need for a speedocable replacement on my el camino 1971.

I know its hard to reach the connector on the instrumentpanel side.

I have been reading on it, it read that the cable is hold in place by a spring / clip.

However my cable has treaded ends on both sides. I ordered the ATP Y 804 cable.

One side has a bigger tread diameter but for sure thread.

What am i mis understanding here?

Thnx in advance
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post #2 of 21 (permalink) Old May 7th, 20, 8:03 AM
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Hank
 
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Re: Speedocable

If your old cable has only one threaded end then you got the wrong cable. If your speedometer has a threaded end on it the smaller end goes there and the bigger threaded end screws on to the transmission where it runs too.

71 Malibu, Cottonwood Green, 396 BBC, AutoGear M22W 4 speed, 12 bolt 3:55 posi.
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post #3 of 21 (permalink) Old May 7th, 20, 8:28 AM Thread Starter
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Quote:
Originally Posted by HKalin View Post
If your old cable has only one threaded end then you got the wrong cable. If your speedometer has a threaded end on it the smaller end goes there and the bigger threaded end screws on to the transmission where it runs too.
Hmm i ordered it on summit and selected my car... and year of building
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post #4 of 21 (permalink) Old May 7th, 20, 12:15 PM
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Chris
 
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My ‘70 cable only has one threaded end and that’s for the tranny. The speedometer end is held in place with a spring clip, no threads.
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1970 SS396 Chevelle
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post #5 of 21 (permalink) Old May 7th, 20, 12:32 PM
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Gene
 
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Re: Speedocable

Early cars were threaded like my 67, and its a real PITA to install. You lucky with a 71!

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post #6 of 21 (permalink) Old May 7th, 20, 2:45 PM
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Hank
 
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Re: Speedocable

Quote:
Originally Posted by Bart Fransen View Post
Hmm i ordered it on summit and selected my car... and year of building
Does your car have the factory sweep dash or round gauge dash. My 71 Malibu has the sweep dash and it had the push on type of speedometer cable that is held on to the back of the speedometer with the spring clip. I put an aftermarket gauge insert in my car with all Autometer gauges in it. The Autometer speedometer had a screw on end for the speedometer cable so I had to buy the cable with the both ends that were threaded. After breaking two cables I changed to a GPS speedometer that has no cables at all.
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71 Malibu, Cottonwood Green, 396 BBC, AutoGear M22W 4 speed, 12 bolt 3:55 posi.
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post #7 of 21 (permalink) Old May 8th, 20, 10:57 AM Thread Starter
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I removed the cable from the car
Indeed i have ordered the wrong one.

Apperantly the one i ordered is with cruisecontrol

At least i maneged to remove the cable without removing any pieces of the dash.

I installing the cable a matter of sliding it in or also the push metal thing needs to be pressed while inserting?
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post #8 of 21 (permalink) Old May 8th, 20, 11:10 AM
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Re: Speedocable

Just pushing the cable on will depress the spring lock at the same time. Only need one hand to do it.

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post #9 of 21 (permalink) Old May 26th, 20, 5:46 PM Thread Starter
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Quote:
Originally Posted by Bart Fransen View Post
Hi there,

I am lucky to have the need for a speedocable replacement on my el camino 1971.

I know its hard to reach the connector on the instrumentpanel side.

I have been reading on it, it read that the cable is hold in place by a spring / clip.

However my cable has treaded ends on both sides. I ordered the ATP Y 804 cable.

One side has a bigger tread diameter but for sure thread.

What am i mis understanding here?

Thnx in advance
Ok guys this afternoon I succesfully installed my new speedocable(without removing any dash parts except the small cover underneath the steering column.
1. New cable
2. Rebuild tranny with (wrong ratio) installed gears

The next ussue i experience:
The speedo needle actually comes up when i am accelerating.
If I slow down the speedo refuses or sometimes partly refuses to fall back to lower speed indication. For sure it will not go back to zero, untill i reverse the car

I also notice that above in my case 70mph on the dash (the reading it self, the gears are not right in the tranny) the reading starts to go off the record. When it shows 70mph and i actually increase 10mph it should indicate but instead it goes to 110mph.

Other issue i notice, when accelerating to certain speed and fix my speed. The speedo is very slow in getting to the stable reading. Lets say in 5 seconds i go from speed 1 to speed 2, the speedo needs 10 seconds to go from speed 1 to speed 2.

Another issue is that i hear a slight grinding nose coming from the speedometer.

Anyone got a indication for this problem and a possible solution
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post #10 of 21 (permalink) Old May 26th, 20, 6:26 PM
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Jim
 
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Talking Re: Speedocable

Quote:
Originally Posted by Bart Fransen View Post
Ok guys this afternoon I succesfully installed my new speedocable(without removing any dash parts except the small cover underneath the steering column.
1. New cable
2. Rebuild tranny with (wrong ratio) installed gears

The next ussue i experience:
The speedo needle actually comes up when i am accelerating.
If I slow down the speedo refuses or sometimes partly refuses to fall back to lower speed indication. For sure it will not go back to zero, untill i reverse the car

I also notice that above in my case 70mph on the dash (the reading it self, the gears are not right in the tranny) the reading starts to go off the record. When it shows 70mph and i actually increase 10mph it should indicate but instead it goes to 110mph.

Other issue i notice, when accelerating to certain speed and fix my speed. The speedo is very slow in getting to the stable reading. Lets say in 5 seconds i go from speed 1 to speed 2, the speedo needs 10 seconds to go from speed 1 to speed 2.

Another issue is that i hear a slight grinding nose coming from the speedometer.

Anyone got a indication for this problem and a possible solution
Not specific to yours, but back in the day when I lived in Alaska, the cable would "wind up" in the congealed lubricant during winter. Unwind with a hellacious racket. Last unwind, it pegged the speedo hard and busted off the pointer. Got a junkyard speedo head and installed new cable with suitable lube...
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post #11 of 21 (permalink) Old May 26th, 20, 10:28 PM
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Re: Speedocable

It sounds to me like your speedometer head needs some attention.

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post #12 of 21 (permalink) Old May 26th, 20, 11:56 PM
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Re: Speedocable

Make sure the transmission end of the cable is not pushed in too far. If it is, the cable will push into the back of the speedo and erratic things happen then. I've seen the little stop on the speedo end almost melted into the speedo. It is not supposed to touch the speedo.

Often the length of the cable needs a bit of adjustment.

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post #13 of 21 (permalink) Old May 27th, 20, 12:45 AM Thread Starter
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Quote:
Originally Posted by LevonH View Post
Make sure the transmission end of the cable is not pushed in too far. If it is, the cable will push into the back of the speedo and erratic things happen then. I've seen the little stop on the speedo end almost melted into the speedo. It is not supposed to touch the speedo.

Often the length of the cable needs a bit of adjustment.
You mean cutting of a bit of the inner piece? I dont like that on a new cable

I did check by manually rotating the transmissionside when only speedo side was inserted. And then the speedo also didt fall back
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post #14 of 21 (permalink) Old May 27th, 20, 12:46 AM Thread Starter
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Quote:
Originally Posted by LeoP View Post
It sounds to me like your speedometer head needs some attention.
What can be done?
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post #15 of 21 (permalink) Old May 27th, 20, 2:15 AM Thread Starter
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Quote:
Originally Posted by Bart Fransen View Post
Quote:
Originally Posted by LevonH View Post
Make sure the transmission end of the cable is not pushed in too far. If it is, the cable will push into the back of the speedo and erratic things happen then. I've seen the little stop on the speedo end almost melted into the speedo. It is not supposed to touch the speedo.

Often the length of the cable needs a bit of adjustment.
You mean cutting of a bit of the inner piece? I dont like that on a new cable

I did check by manually rotating the transmissionside when only speedo side was inserted. And then the speedo also didt fall back
I need to say, that rotating the cable wasnt a easy job by doing it manually. I felt some resistance. The new cable installed i did not grease it.
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