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> Ljet wiring loom rebuild
davesprinkle
post Oct 24 2012, 08:46 PM
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Like mechanical work, the right tools are important. I use an Xcelite cutter and an Ideal stripper. The crimper is by AMP, intended for Mate-N-Lok connectors, but works well for the Jr Timer contacts in the Ljet loom. I also use a Steinel heatgun. Other tools are: dispenser for isopropanol, razor-knife, scissors, Kapton tape dispenser.


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davesprinkle
post Oct 24 2012, 08:49 PM
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Here is a shot of the ECU connector, prior to crimping all the terminals. (Note that the leads are wrapped in Kapton tape, keeps them tidy while standing up to the heat applied by the heat gun.)


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timothy_nd28
post Oct 24 2012, 08:49 PM
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davesprinkle
post Oct 24 2012, 08:54 PM
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Here's a pic of the loom in process. Here I've established the lead routing for a loom junction. I've wrapped the legs in Kapton tape to keep them tidy prior to shrinking down the sleeving. Tubing is Raychem DR-25. Wires are Raychem spec-55: high strand-count, 18awg, radiation cross-linked Tefzel insulation. (Is that good enough for a 914? I think so, it's good enough for F1 cars...)


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914itis
post Oct 24 2012, 08:55 PM
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Hey Dave , are you planing on offering this service for l and djet ?
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davesprinkle
post Oct 24 2012, 08:56 PM
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Another gratuitous shot of a loom junction prior to sleeving.


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Black22
post Oct 24 2012, 08:57 PM
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Black22
post Oct 24 2012, 08:58 PM
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QUOTE(914itis @ Oct 24 2012, 07:55 PM) *

Hey Dave , are you planing on offering this service for l and djet ?


Yeah, what he said!
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davesprinkle
post Oct 24 2012, 08:58 PM
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Sorry for the blurry pic. Here is a shot of the heat-shrink boot prior to shrinking. The free wires will be guided into one of the open legs. Note that the branches have all been sleeved at this point.


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davesprinkle
post Oct 24 2012, 09:00 PM
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Another shot of a similar boot, this time with all the legs guided into their appropriate boot opening.


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davesprinkle
post Oct 24 2012, 09:03 PM
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Here is another boot. This one is a 1-to-4 junction. I used this one at the end of the loom, where the AFM, injector 1, injector 2, and throttle switch leads all exit the loom.


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914itis
post Oct 24 2012, 09:06 PM
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QUOTE(Black22 @ Oct 24 2012, 10:58 PM) *

QUOTE(914itis @ Oct 24 2012, 07:55 PM) *

Hey Dave , are you planing on offering this service for l and djet ?


Yeah, what he said!

Kool , I need a set for djet .
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davesprinkle
post Oct 24 2012, 09:07 PM
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Here is a pic of the loom junction when the boot is fully shrunk. Note the epoxy at the boot entries (RT1125), which is designed to glue the boot to the sleeving, leaving an impermeable covering. (In most cases, all the leads would be sleeved. However, in the Ljet loom, we have two legs with single leads: the coil-sense, and the CHT. I decided to leave them unsleeved.)


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davesprinkle
post Oct 24 2012, 09:09 PM
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A nice touch is to label all the leads.


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davesprinkle
post Oct 24 2012, 09:10 PM
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A pic of the completed loom, prior to installation.


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davesprinkle
post Oct 24 2012, 09:20 PM
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Yes, the car does run with the new loom, in case anyone was wondering...
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Black22
post Oct 24 2012, 10:11 PM
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That's puurdy!!!! (IMG:style_emoticons/default/rolleyes.gif) (IMG:style_emoticons/default/drooley.gif)

How much?
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timothy_nd28
post Oct 24 2012, 10:20 PM
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Would it be any cheaper than $675?
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pete000
post Oct 25 2012, 12:04 AM
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Impressive work... (IMG:style_emoticons/default/smilie_pokal.gif)
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FourBlades
post Oct 25 2012, 06:08 AM
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Very cool!

I need to make a wiring harness for my race car from scratch.

Where did you learn how to do all that?

John
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