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4hv.org :: Forums :: General Science and Electronics
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How much of a MacGyver are you?

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Dr. Slack
Thu May 26 2016, 08:52PM Print
Dr. Slack Registered Member #72 Joined: Thu Feb 09 2006, 08:29AM
Location: UK St. Albans
Posts: 1659
A good while ago, I had, not a life-threatening, but a holiday-threatening situation, late at night, that could be fixed with two feet of copper wire, and needed to be fixed, now!

Wire from where? I remembered from looking at my car's circuit diagram (to fix my fog-lamps a few years previously) that the wiring loom included wiring for front seat adjustment motors, which were not fitted, and would never be fitted.

I got my cutters out (you take cutters on holiday, don't you?) and grovelled around under the driver's seat for a while, finally emerging with an arm's length of wire, to the horror of my wife, who rather hoped that I had not disabled the car for the rest of the holiday.

For the life of me, I still can't remember what the actual problem was that needed the wire, but I do remember getting the wire. And the car still worked.
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Nik
Fri May 27 2016, 05:29AM
Nik Registered Member #53 Joined: Thu Feb 09 2006, 04:31AM
Location: Ontario, Canada
Posts: 638
Yes! I brought a mini-tool kit with me on a year trip through Australia and New Zealand. I fixed a broken laptop charger cable with a bulldog clip: Link2 And I repaired a 40 year old camera lens: Link2
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Ash Small
Fri Jun 03 2016, 10:23PM
Ash Small Registered Member #3414 Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245
I rec ently had a core plug start leaking on a car I'd bought to use until I get my Saab fixed, managed to get to a Vauxhall (GM) dealership by repeatedly topponh the resevoir up and keeping an eye on the temperature guage, and bought a 36mm core plug and managed to get home, while the leak turned into a torrent, only to find that it was 2mm too big, I live in an isolated cottage, could order one from the internet, but it was a weekend, so it wouldn't arrive until the following week.

While online googling, I read a bit about the history of core plugs, etc. and found out there are basically three different types, Solid brass ones that are domed, and are inserted against a shoulder, then hammered so they expand, the usual pressed steel type, favoured by most manufacturers due to it's cost, and a third type that compressed a rubbed disc between two plates. There's also a fourth, threaded kind, pipe fittings were originally used.

What do I do? I got the rubber plug from the bathroom sink, which was the type with a hole in the middle for the bit the chain attaches to, and rempved the bit that attaches the chain, put it on a 6mm bolt, with a nut, and put it in the chuck of my drill, and took some sandpaper to it, until it would just start going into the core plug hole, but lefy an angle on the edge.

Then I drilled and tapped a piece of bar, and fitted a bolt, then cut the bar so I could feed it into the block in such a manner that the bolt was central in the hole, and the bar was accross the inside face of the hole, then put the sink plug onto the bolt followed by a penny washer and nut, and tightened the nut, drawing the sink plug into the hole, and causing it to expand circumferally (is that a word?).

That was weeks ago, it's still holding strong.

Also, the exhaust snapped a few days later, so I repaired it with fibreglass matting, wrapped in a beer can, and secured with jubillee clips, with a bit of steel bar to strengthen the joint, that's still fine too. I had to borrow a can of beer from my neighbour wink

EDIT Incidentally, my last pair of snips came from the pharmacy, and were intended for use on toenails, but they make really good wirecutters wink
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