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Username Post: 1968 Wagon Gear Indicator Cable        (Topic#368355)
smwalker 
Newbie
Posts: 11

Loc: Azusa, CA
Reg: 04-29-22
05-06-22 04:11 PM - Post#2840791    

Looking to get my 1968 Wagon back on the road and wanted to get my gear indicator working again. The plastic sheath has totally disintegrated only a cable left.

Found a NOS part for over $200, GM Part Number 6481558 -- don't need it that bad!!

But was wondering any one has ever found a replacement plastic sheath to use to sort of rebuild it? Seems like it might be possible if you can find that thin/small cable holder.

Here is a pic of the NOS one:





https://www.oldsobsolete.com/products-page/chevy-p ...


Steve Walker
PPVSteve@Gmail.com
Azusa, CA


Edited by smwalker on 05-06-22 04:22 PM. Reason for edit: added part number

 


Jynx 
Newbie
Posts: 46

Loc: Australia
Reg: 03-01-11
05-06-22 10:59 PM - Post#2840810    
    In response to smwalker

Not sure I fully understand the part you need but if you're referring to the outer cable as the "sheath" then you could buy a universal motorcycle throttle cable & modify it to suit.

Most motorcycle shops that sell the cable should also have an assortment of ferrules etc. Try your local Harley Shop, they might even make it up for you.

67 Impala 4Dr Hardtop.


 
smwalker 
Newbie
Posts: 11

Loc: Azusa, CA
Reg: 04-29-22
05-07-22 12:33 AM - Post#2840812    
    In response to Jynx

Thanks Jynx,

Problem is the Cable is so small, and the force needed to move the PRNDL needle is so small I cant upsize anything.

I was able to determine the outer dimention of the sheath is 2.0mm and the cable width is 0.6mm.

Stadard Bicycle cable is about 1.5mm thick.
Think I got a lead in the Hobby world. Think Model Airplanes might use these small cables.

Steve Walker
PPVSteve@Gmail.com
Azusa, CA


 
Jynx 
Newbie
Posts: 46

Loc: Australia
Reg: 03-01-11
05-07-22 01:47 AM - Post#2840815    
    In response to smwalker

ok gotcha, it's tiny. I'd guess the i/d of the cable will be 1mm then, so if model planes are no good then google for some tubing in that dimension, it shouldn't be too hard to find.

67 Impala 4Dr Hardtop.


 
toro455 
"6th Year" Silver Supporting Member
Posts: 680
toro455
Loc: Western NY
Reg: 06-15-02
05-07-22 12:36 PM - Post#2840837    
    In response to smwalker

It looks like maybe something like nylaflow tubing would work as a replacement for the cable guide. Nylaflow is often used for gauge lines and for air shocks. I may be off in the spelling.

Scott



 
smwalker 
Newbie
Posts: 11

Loc: Azusa, CA
Reg: 04-29-22
05-07-22 04:12 PM - Post#2840846    
    In response to toro455

Thanks Toro, that looked good but thier smallest is 1/8 of an inch OD or 3.2mm . Cant even believe a GM supplier was even able to make such a small tube 55 years ago! LOL


https://nylaflow.com/sizes/

Steve Walker
PPVSteve@Gmail.com
Azusa, CA


 
62BillT 
"20th Year" Silver Supporting Member
Posts: 6003
62BillT
Loc: Moneta, VA
Reg: 09-24-01
05-07-22 06:17 PM - Post#2840850    
    In response to smwalker

There is a chance that I'll have a good used one. I can check one day next week.

Member:
-National Impala Association
-Vintage Chevrolet Club of America


 
smwalker 
Newbie
Posts: 11

Loc: Azusa, CA
Reg: 04-29-22
05-07-22 08:42 PM - Post#2840860    
    In response to 62BillT

Thanks Bill

The condition mine was in I will be surprised if any used one has any integrity. I was even concerned with the NOS one sitting in a box for 50 years.

Steve Walker
PPVSteve@Gmail.com
Azusa, CA


 
Jynx 
Newbie
Posts: 46

Loc: Australia
Reg: 03-01-11
05-08-22 01:47 AM - Post#2840863    
    In response to smwalker

how about this

67 Impala 4Dr Hardtop.


 
smwalker 
Newbie
Posts: 11

Loc: Azusa, CA
Reg: 04-29-22
05-08-22 12:11 PM - Post#2840884    
    In response to Jynx

OOOH Boy howdy Jynx that looks promising! And cheap to boot!! Thought I was going to be stuck with 1000 feet of the stuff!!

Nice will get some coming my way.

A 3D printer part, who would have thought!

Steve Walker
PPVSteve@Gmail.com
Azusa, CA


 
smwalker 
Newbie
Posts: 11

Loc: Azusa, CA
Reg: 04-29-22
05-11-22 08:27 PM - Post#2841075    
    In response to smwalker

Just an update. Asked the guys at Reddit/Photoshophelp to get me length on the tube since mine was non existant.

Got 2 measurements 202 MM and 208 MM So will go with 205mm and see how that works.



Steve Walker
PPVSteve@Gmail.com
Azusa, CA


 
toro455 
"6th Year" Silver Supporting Member
Posts: 680
toro455
Loc: Western NY
Reg: 06-15-02
05-12-22 06:26 PM - Post#2841119    
    In response to smwalker

Steve,
Whenever you need a small amount of something like that check McMaster-Carr. If the 3D printing guide works you won't beat that price though. Nylaflow is used for gauge lines and air shocks so it dates back quite a long time but I'm not certain when it was first used. I don't know what they used before nylaflow... maybe copper gauge tubing? AC TXV's used very small diameter copper tubing going to the sensing bulb.

It will be cool to see how it works for you. If you're not certain of the size you need McMaster-Carr is pretty nice. They seem to charge fair prices and the shipping is typically fair too if you consider several items ship together. For a single item it can be relatively expensive.

Scott



 
smwalker 
Newbie
Posts: 11

Loc: Azusa, CA
Reg: 04-29-22
05-13-22 07:52 PM - Post#2841175    
    In response to smwalker

We have success!!!

Tubing and cable came in. Works like a charm. Couple videos of testing. Wanted to make sure the spring on the needle was strong enough to pull it back to the park position. Well strong enough and working well.

Will post another pic once installed in the car.

Thanks for all the leads guys!!

And if anyone ever needs to rebuild one of these I got extra stuff hit me up!!

Cable Testing 1



Cable Testing 2

Steve Walker
PPVSteve@Gmail.com
Azusa, CA


 
Jynx 
Newbie
Posts: 46

Loc: Australia
Reg: 03-01-11
05-14-22 02:00 AM - Post#2841180    
    In response to smwalker

Very nice work, good to see it all worked out, sometimes the smallest problems become the biggest challenges, but that makes it so much sweeter when you win.

67 Impala 4Dr Hardtop.


 
62sedan 
Very Senior Member
Posts: 4145
62sedan
Loc: Above the red Texas dirt
Reg: 08-12-02
05-14-22 04:31 AM - Post#2841185    
    In response to Jynx

EXCELLENT!!!! Glad you got it working correctly.

Chuck






 


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