26X Wiring Diagram

7 posts / 0 new
Last post
john.richards
26X Wiring Diagram

The problems with my 26X continue. After getting the mast up and the boom attached, I've found the electrics didn't work on the mast nav lights, steaming light, etc. Then I found the instruments had stopped working and the engine console instruments were also dead. This lead me to try and trace the wiring back to search for a breakage, blown fuse, etc., which required that I remove the GRP front under the cooker. What I saw made me physically sick (see photos) ...

I have two batteries, one in the starboard locker next to the cool box, one strapped to the inside of the port locker by the cooker. The port locker battery appears to be reserved for the engine harness, but connected by household copper wire (gaaah...) to the second battery. I have two instruments on the cockpit bulkhead (depth/speed & wind strength and direction), and a fixed VHF radio, plus the usual bow & stern lights and interior lights.

What I need is a wiring diagram for the 26X that includes 2 batteries and the usual instrumentation; does anyone have one of these, even a hand-drawn one would do? I have been in touch with Anneke who used a wiring kit from Merlin Marine Equipment, but it's very hard getting hold of the one person at Merlin who can discuss my requirements.

I am confident I could re-wire the boat given some diagrams, but at the moment it all looks like a mountain to climb!

rick.jones
rick.jones's picture
Re: 26X Wiring Diagram

Hi John

The standard ex-factory wiring in a 26X is very basic and simple, and doesn't even include any provision for the engine. There was simply a single battery on the port side under the small seat just aft of the galley. Then the 3 switches in the ceiling by the mast post switched the cabin lights, bow/stern nav lights, and steaming light. Anything more than that is a customisation, and every boat is different!

So there's no such thing as a standard full wiring diagram including engine, battery charging, instruments, etc. Mine was pretty chaotic when I got it, so I basically decided what I wanted and wired it accordingly, re-using the cables already in place as far as possible. Pulling new cables through the hidden spaces is the hardest bit.

It's common to have a 2nd battery primarily as the engine starter, in which case the engine starter cables should go directly to this battery (outboard charging systems do not like having the battery switched out while running, so best thing is don't have a switch). The engine instruments run directly from the engine, making it a separate electrical system. If you arrange for everything else to run from the house battery, then all you need is a way to connect the two systems when the engine is running so as to charge both batteries. This can be a manual switch, or better still a VSR (voltage sensitive relay) which cuts in only when there's enough spare charging power.

The best way to deal with spaghetti is be bold!

Rick Jones (Treasurer) 1994 Mac 19 "White Lightning", Isle of Wight

john.richards
Re: 26X Wiring Diagram

Thanks for the useful words of advice Rick, and as you suggest, I have been bold! I have detached all the wires from the switches and batteries, and labelled those wires that I can identify. I do have a bit of a problem working out which wire does what, because there doesn't seem to be much help in the way of colour coding - a harness full of wires to the forward switches all appear to be white!

Anneke has very kindly offered to send me her wiring diagram & notes from her re-wire using a proprietary system from Merlin Equipment, so if I can follow hers I will be more than happy.

Next step is to empty the boat of all the cushions & everything (again!), and give myself room to manoeuvre; my ageing knees don't seem to bend sufficiently to get to the difficult bits... Again, thanks for the advice Rick, much appreciated.

Incidentally, a propos of my thread on tow-cars, I have just bought myself a 2006 Kia Sorento to get my rig about the country. I may be able to go sailing this year yet!

ian.crosby
Hi

Hi

Hi

I'm having trouble with the wiring on my 26x, specifically a dead circuit to the bow running light fitting, and the mast head running lights are also out. The rear running light works perfectly on the switch, as does the interior lights and the steaming light. The wire coming out of the bow is a white covered 2core with red and yellow inner cores. The red core is dead, but it was ok a few weeks ago. All the wires coming in or out the running lights switch panel appear to have 2 white covered cores, so there must be a connection from the white core to the red somewhere. The main blade fuse next to the battery and the running light switch fuses are OK, and i've also checked the resistance on the masthead circuit and the actual bow fitting, and both have a circuit. The bow light works if I take a wire straight to it from the live side of the switch. So assuming I haven't missed an obvious extra fuse somewhere, then my question is, does the factory running lights circuit have a 2 core wire going straight from the live and earth sides of the switch panel to each individual light. Which means I 'just' have to find which one it is and pull a new wire through from the bow to the switch panel. Which I think would be a horrendous task, so any tips please?

But I have a sneaky feeling that this is fuse related, but where is it ?

If anyone does have a diagram of a 26x wiring loom, then i'd be very grateful as well, as the one is the manual isn't very helpful

Thanks

Ian

rick.jones
rick.jones's picture
Hi Ian

Hi Ian

The original wiring to the bow light was twin white, same as you see at the switch panel. So your red/yellow wire must be joined to the original twin white somewhere. That joint, wherever it is, has to be the suspect.

There is an access panel above the V-berth, under that is a load of polystyrene, but if you take some out you should be able to find the wiring. That's about the only place the wire could have been joined.

Rick Jones (Treasurer) 1994 Mac 19 "White Lightning", Isle of Wight

ian.crosby
Thanks rick. I’ll take a look

Thanks rick. I’ll take a look in there next time I’m down

ian.crosby
Hi Rick

Hi Rick

Just to let you know that you were right, and there was a wiring join in the front buoyancy tank. The wire from the switch was live but the one from the join to the light was dead, ie its got a break, so i'll be pulling a new wire through this week

Thanks

Ian

AQUILA 26x 1914