Feeding long cable runs down heatshrink tube?
Feeding long cable runs down heatshrink tube?
Are there any tricks to feeding several wires down one long run of heat shrink tubing, short of having only a few wires in a huge diameter heat shrink tube, that won't shrink to size properly? I am sure the pros must have a few trade secrets here?
-
- Posts: 3588
- Joined: Tue Aug 02, 2011 12:08 pm
- ECU Model: No ECU
- Location: Norn Iron
Re: Feeding long cable runs down heatshrink tube?
What is the actual problem ? How tight are you looking to pack them ?Basil wrote:Are there any tricks to feeding several wires down one long run of heat shrink tubing, short of having only a few wires in a huge diameter heat shrink tube, that won't shrink to size properly? I am sure the pros must have a few trade secrets here?
Obviously you dont try to feed them in one at a time. You group wires together then use something to pull them in.
Either a single draw wire, stiff wire, whatever.
Re: Feeding long cable runs down heatshrink tube?
How longs the tube? FWIW, on realll long runs (in small flexible conduit admitedly, but same principle) I've used an air-line and blow gun to blow a draw cord through, then it's a simple case of carefully pulling the cable bundle through. If the runs are very long though, friction can be a killer, both for the "stiction" and the heat it can put into insulators.
Re: Feeding long cable runs down heatshrink tube?
use a piece of stiff wire as a draw cord as mentioned above and lubricate the cables your pulling through to overcome the friction issue, I often use the same principles at work on a larger scale and the cable lubrication cant be beaten for troublesome jobs.
-
- Posts: 3588
- Joined: Tue Aug 02, 2011 12:08 pm
- ECU Model: No ECU
- Location: Norn Iron
Re: Feeding long cable runs down heatshrink tube?
although for automotive purposes, a silicone lube might be best.
Re: Feeding long cable runs down heatshrink tube?
Twist your wires together first .
- ignitionautosport
- Posts: 577
- Joined: Wed Jul 27, 2011 5:30 am
- ECU Model: S80 Pro
- Location: New Zealand
- Contact:
Re: Feeding long cable runs down heatshrink tube?
KY jelly. Seriously.
| '94 GSR Lancer | '96 Toyota Carib 20V | '83 Toyota Starlet | www.ignitionautosport.co.nz |
-
- Posts: 3588
- Joined: Tue Aug 02, 2011 12:08 pm
- ECU Model: No ECU
- Location: Norn Iron
Re: Feeding long cable runs down heatshrink tube?
Or easiest solution....get someone else to make the loom lol
- ignitionautosport
- Posts: 577
- Joined: Wed Jul 27, 2011 5:30 am
- ECU Model: S80 Pro
- Location: New Zealand
- Contact:
Re: Feeding long cable runs down heatshrink tube?
Someone like me
| '94 GSR Lancer | '96 Toyota Carib 20V | '83 Toyota Starlet | www.ignitionautosport.co.nz |
Re: Feeding long cable runs down heatshrink tube?
How long is a long cable run? For any wires I might need to get at again, I use that corrigated conduit stuff. I've run cables down a long length of sleeving before (2-3M) and had to cut it open again to make some changes to the loom (adding a new function), which is a pain in the back side!