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  1. #46

    Re: electrickery help needed

    If you look at a "standard" insulated crimps, there are two types. Single grip crimps have the fitting that crimps onto the wire and the insulation collar. Double grip have an additional collar around the outside of the fitting that contacts the wire that is flared and extends back under the insulation collar made of metal. It's purpose is to crimp down onto the insulation to provide a more secure connection and strain relief.

  2. #47

    Re: electrickery help needed

    Hi Scott, Firstly, I'll apologise in advance for my newbie questions on this topic.
    Pryor to this, my only other wiring job, involve getting a pre made loom for a 75 triumph Bonneville, of which, I changed all the bullet connectors that the pom's seem to love, to spade connectors and heat shrinked them. I used a non ratchet, "single die" Crimping tool, It's been fine ever since, old Bonnies vibrate like hell, but so far, 7-8 years, all's good.
    Then, comes the boat, bearing in mind, when I started this re build, EVERY connection on the boat, was covered in green corrosion, it truly was a disaster waiting to happen, a fair few connections, when removing the wiring, simply broke off there and then.
    So you've now gathered my experience here is limited... LOL
    The ratchet Crimper I have just bought, Yes, has 2 compressing points, as per the photo.
    Now, the Spade fitting on the right, is from super cheap, it has a longer metal barrel inside, Double grip, which I thought was the whole purpose of those Double compression Crimpers, the light blue fully insulated spade bit next to it, basically has a small metal piece inside for crimping, the second compression area on my Crimpers, would only be compressing the vinyl insulation, it indented it a bit, I can see how it this type of Crimper would ruin a heat shrink version.
    Now, Am I off with the fairy's here ?, surely this type of Crimper would only be for the double grip ( longer barrel ) inside the insulation ?
    Or can you actually use those other connectors as shown ?, as mentioned, it would only be crimping the vinyl insulation ?
    Hope I've explained my self properly...

    Col
    IMG_1526.jpg

  3. #48

    Re: electrickery help needed

    Hi Scott, We posted at the same time....
    So the above type Crimpers, are really only good for the "extended collar" type connectors, I guess that's the question........

    As Mentioned, I managed to get them from Super cheap, but I was oblivious to the different types of Crimp tools......

    Jamie, how did you end up going with your VCR ACR set up ???

    Col

  4. #49

    Re: electrickery help needed

    Won't be an issue Col. Yes - they are meant for the double grip connectors but in practice they crimp single grips fine. With some crimpers, you do need to be careful about which way you orient the crimp - they seem to have a slight variation in the jaw and don't crimp as heavily on the insulation side. I have a set like this - hate the things as ultimately I forget and the crimp pulls off when tested (on single grip connectors).

  5. #50

    Re: electrickery help needed

    I do like how the extended collar type connectors, get a decent Crimp, The back one acting as a strain relief, as you say Scott.
    The Crimp tool is on its weakest adjustable setting, it sure left it's imprint !!.

    Col
    Attached Images Attached Images

  6. #51

    Re: electrickery help needed

    Yep, I did that for my first crimp, until I physically looked and compared both sides of the grip.
    Basically, hold in right hand, fit wire in from the left.....
    I do like the idea of the whole crimp being covered by the vinyl as per the one on the left, but I prefer the double grip ones, since they are quite firm on the
    switch panel lug, and I figured they offered more support for removing and replacing........
    In all seriousness, I honestly only thought there was one type of Crimp tool pryor to this....LOL

    Col

  7. #52

    Re: electrickery help needed

    The fully insulated spades are available in double grip. Pity about your supercheap shutting down as they sell them. Could also try any electrical wholesaler - probably more expensive but they usually carry a fair range of quality stuff.

  8. #53

    Re: electrickery help needed

    Yeah, they were only 5 minutes down the road, the one I had to go too, was a half hour, in traffic drive.
    In all honesty, the kid that served me, new absolutely nothing, so after milling around and searching, I grabbed the above ones.
    I don't have a water issue at all where the switch panels are behind, I doubt they would ever even be splashed with water... BUT, I suppose fully insulated would be a better choice. I'm heading back down there by weeks end, I'm grabbing one of there soldering irons and solder etc, so I'll have another look there for the fully insulated double grip ones,,,, there on sale at the minute, if you buy two packs of a hundred, of any type, there only $10. I will need some larger ones for the main posts, so if I find some I might as well grab them, those other ones will get used up somewhere no doubt.
    Thanks Scott...

    Col

  9. #54
    Ausfish Silver Member 552Evo's Avatar
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    Melbourne

    Re: electrickery help needed

    Quote Originally Posted by blacklab View Post

    Jamie, how did you end up going with your VCR ACR set up ???

    Col
    Basically all done, my only hold up in upgrading the main switch is - I went to Mr Smiths marine shop 40 minutes away and got the last suitable switch they had - only to realise after I got home and fully opened it from the packet that the mounting screws were missing,,,
    Now I'm searching around all the fastener shops for
    Stainless screws,
    10 Ga
    75mm long
    Button/Pan head

    I thought it was going to be easy,




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  10. #55

    Re: electrickery help needed

    Don't Ya hate it when that happens Jamie...........
    I use a crowd in cheltenham, only 10 minutes from my factory and they have been a gods end for 316 S/S screws and bolts for my boat rebuild.
    Your probably a little further out than close to there......

    Col

  11. #56
    Ausfish Silver Member 552Evo's Avatar
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    Melbourne

    Re: electrickery help needed

    Ha ha yep, I'm north end of town in crazyburn, so I'm on the hunt around campbelfield,
    There's a few places, I just need the "business hours" time now

    I've got a small range of 316 screws and bolts that I've been buying over the last few years - but of course not the size I need now,, Murphy's law in action.


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  12. #57

    Re: electrickery help needed

    Sing out if you get stuck,I'm into my supplier in the next couple of days.........

    Col

  13. #58
    Ausfish Silver Member 552Evo's Avatar
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    Melbourne

    Re: electrickery help needed

    Well that's mighty neighbourly of you sir.
    Thank you,



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  14. #59

    Re: electrickery help needed

    Boy this soldering is a bit of a trick !!.
    My first efforts, practicing trying to join 2 4mm wires is now officially rated as a disaster.
    I just couldn't get enough heat underneath to enable the solder to melt and soak down. The solderer is a 100 watt job, using 60-40 solder, tinned the tip before starting, but it was even melting the sheath and still not enough heat in the wire.
    I'll be joining much thinner wire to my 4mm that I'm running at the back on everything, the method I used was to fray both ends open then push them together and give it a bit of a twist, put a touch of solder on the tip and then touched the join underneath with the solder on the ready on top.
    I see that some videos, actually use a flux on the wire first, is this a better practice to do ?.
    It was a tad fiddly trying to hold on to everything, so I've made up a jury rig for the vice, so I can have the wires together, so my hands are free to use the solder iron and solder. I was thinking that I didn't twist the wires firmly enough once I slid them into each other.
    But interested in the use of a flux on the join before attempting to heat up and apply solder ???

    Col

  15. #60
    Ausfish Silver Member 552Evo's Avatar
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    Re: electrickery help needed

    It should be pretty straight forward Col, as you said just make sure you've got good heat into both wires being joined and make sure the wires are clean.
    If you're using 60/40 solder with inbuilt flux it shouldn't need extra flux - unless the cables are oxidised or dirty.
    Are the wires you are attempting to join new ?
    I'm guessing they are tinned ? Maybe there's something going on with the tin coating material ?


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