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Old 09 December 2009, 11:59   #11
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Originally Posted by jyasaki View Post
What kind of cable are you using on the trailer?

Here in the states, "standard" is a 4 conductor cable: Left turn, Right turn, running lights, and ground. Upgrade from that is a 5-wire system that adds a reverse signal (usually for locking out disk brakes.) Connector is a flat-4 or flat-5 (three or four sockets for the signals, and a single pin for the ground; reversed for the mating connector. In a bind, you can connect a 5-wire trailer to a 4-wire tow vehicle, but you lose the brake lock-out.)

On both those systems, the ground wire runs from the trailer's connector and is almost immediately terminated to the trailer frame. All lights are connected to their respective signal wires (either turn or running), and tied back to the frame. End result is a lot of connections to a piece of hot dip galvanised steel, which makes for a sketchy connection from the start; add in a bit of corrosion and problems become inevitable.

On my trailer, I've added a separate run of ground wire to each light fixture, such that each has a dedicated signal and ground wire (that doesn't sound right - what I mean is there is a ground wire down each side of the trailer that is daisy-chained to each fixture.) The ground wire is still tied to the frame, but it doesn't really do anything. I've had very few flaky ground problems (having the LED light fixtures flood is another story...)

jky
JKY - the norm here is a 7-wire cable:

Left indicator
right indicator
side lights (left & right separate)
brake lights
fog light
Earth

The lights are normally on a removable board - with a completely removable wiring loom (usually permanantly attached to the board) - so the trailer itself is not normally connected to earth.

Reversing lights aren't normally included on boat trailers.
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Old 09 December 2009, 12:00   #12
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Originally Posted by Nasher View Post
I must be really lucky.

My cheap 3yr old towsure lightboard has only let me down once when a taillight bulb blew.
When I first brought it I extended the cable by splicing in an extra 4M of cable and refitting the plug on the end.
The soldered joins were covered in heatshrink then the whole thing covered in a larger Heatshrink.

Despite the care I take of the boat, engine, and trailer Iíve never really taken any notice of the light board.
Probably because I have a spare in the garage that somebody gave me soon after buying it.

The only care and attention itís had was a squirt of WD40 inside the bulb holders about two years ago because they had a little tiny bit of green inside that I noticed when the bulb blew.
I gave up removing it from the trailer when the boat is at the yard about 2 years ago, so itís outside in all weathers and all I do is dangle the plug over the winch where the cover protects it from the rain. Itís been up and down between Pompey and Dartmouth several times in horrendous rain at a steady 60mph, gets used all year round for journeys of @15miles at a time, and so far has always worked first time when Iíve plugged it in.

The electrics on the car were however professionally fitted when the car was 3 months old and all the connections are inside protected by rubber grommets and connected into the Mitsubishi loom properly, not with crimps or those silly Blue things.

Nasher.


OOOhhh Get you Mr smarty pants!! seriously though I agree there is no substitute for proper wiring!


Those silly blue things are called scothlock connectors an they should be banned cos I hate them. I had a wiring fault on a Quinquarri supplied Humber I was driving once and that was down to scotchlocks they were only connecting the Kill Cord switch

I go through a lot of lightboatds cos I keep running over tehm or stuff like that!
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Old 09 December 2009, 12:07   #13
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I keep running over tehm or stuff like that!
Well Stu Silicone Rubber aint going to 'elp you there buddy.

Yours
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Old 09 December 2009, 13:55   #14
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OOOhhh Get you Mr smarty pants!! seriously though I agree there is no substitute for proper wiring!
You mean like wiring the plug to the tail board rather than the piece of cable you'd just cut off?
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Old 09 December 2009, 14:44   #15
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Snitchy Mcgritch

it might have been on the wrong bit of cable but it was a fine job none the less. what ever you do don't tell that DM tosser.

BTW I needed a copy of your CV
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Old 09 December 2009, 16:59   #16
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BTW I needed a copy of your CV
But not anymore?
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Old 09 December 2009, 20:11   #17
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correctamundo he sent it anyway he's goy a o level in needlework



I just made up 3 lighting boards so that should get me thtough the month
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Old 10 December 2009, 02:46   #18
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I just made up 3 lighting boards so that should get me thtough the month
Are they all wired up to the same plug ? ? ?
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Old 10 December 2009, 04:55   #19
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agree with everything said. Have a look at your wiring inside the light units and at the plug end. If you still have a problem borrow a known working light board and check out the car electrics.

I had no troubles with my light board untill two trips ago. The first trip I the draw bar from the trailer dropped down, right on the the connector plug and smashed it in half. The last trip I had a dodgy sidelight bulb. A kick of the boot had it working again

Perhaps it's time I serviced my board
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Old 10 December 2009, 05:15   #20
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correctamundo he sent it anyway he's goy a o level in needlework



I just made up 3 lighting boards so that should get me thtough the month
Like your wiring mate it is fine needle work!

Them lighing boards will last you forever if you keep leaving them at home
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