Mudski GU Build Thread

[mudski]

Mark, this device might be a bit less cumbersome, I bought a cheapie like this and a more expensive unit - I also have some leaks and plan to dive into root cause as well.
https://www.ebay.com.au/itm/395301005433

The more expensive unit I sourced from the UK has a higher amp value, circa 80amp from memory but this parasitic load is going to be easility handled by this cheper unit provided it has the resolution I guess

Yep I have one on the way to me. Hopefully soon.
So I’ve pulled every fuse out I have and it’s still there.
I did unplug the two wire plug from the alternator and nothing changed but I think I have to take the main wire from the back off it to properly check. Which is a pain to do as my intake pipe sits right over the top of it. But I must do it.


Sent from my iPhone using Tapatalk

[PeeBee]

Could be a pile of very small loads adding up and not detectable by the meter? I have a 0.1amp parasitic load in the POD - not going to chase that as it could be from a number of electronic devices that are simply sipping the power to keep background circuits alive.

[mudnut]

I just spent a while reading the GU power delivery diagrams. They don't make it clear in the General Information section if the 100amp protection device is a fuse, circuit breaker or fusible link. If the Gu has fusible links at the battery terminal, then disconnect them. If not and you have pulled the higher amperage fuses, and relays and still get parasitic draw, then my money is on the alternator.

[mudski]

I just spent a while reading the GU power delivery diagrams. They don't make it clear in the General Information section if the 100amp protection device is a fuse, circuit breaker or fusible link. If the Gu has fusible links at the battery terminal, then disconnect them. If not and you have pulled the higher amperage fuses, and relays and still get parasitic draw, then my money is on the alternator.

Hi Craig.

I totally disconnected the alternator and had no change at all.
So I do have another battery that sits on a float charge from a 10amp solar panel via a controller.
I rigged this up to the Patrol in the same fashion as if it were the main battery.
Strange thing happened.
With the original battery being tested. The neg lead disconnected and the DMM probes to the neg of the battery and the neg lead to the car, I open the door to activate the interior light, nothing happens. No light comes on. But the DMM readings will fluctuate from .10a up to nearly 1amp.

hook up to the spare battery, the dmm readings drop to zero and when I open the door, the light comes on and I get a reading of .12amp on the DMM.

I’m not expert but this tells me it’s the battery.

Tonight i will disconnect the starter and see what happens.

Sent from my iPhone using Tapatalk

[mudnut]

Maybe a cell has failed or the battery has been damaged by being discharged too low. Very rarely, but batteries can have internal current draw, too.

[mudski]

New battery on the way today. Hopefully no more issues.

[mudski]

So the old barn door trims were looking a bit second hand so I decided to make my own.
Came up pretty good I think.






Sent from my iPhone using Tapatalk

[mudski]

Next was to make up a new bracket to hold the Rear Anderson plugs and a few 12v lecky bits for the rear as previously it was all zip tied up to the cargo barrier.


It took a while to make as I had to think up and make the bracketry to hold it all in.
I was very impressed with my work. Until I folded the rear seat back into position. The bloody seat just leans against the reset button on the circuit breaker!!!! So out it all came for version 2.0 to be made.


Sent from my iPhone using Tapatalk

[jay see]

Next was to make up a new bracket to hold the Rear Anderson plugs and a few 12v lecky bits for the rear as previously it was all zip tied up to the cargo barrier.


It took a while to make as I had to think up and make the bracketry to hold it all in.
I was very impressed with my work. Until I folded the rear seat back into position. The bloody seat just leans against the reset button on the circuit breaker!!!! So out it all came for version 2.0 to be made.


Sent from my iPhone using Tapatalk

Give it time mate you won't need the back seats. I took my out last year and have all this extra room.

Sent from my Pixel 7 using Tapatalk

[mudski]

Give it time mate you won't need the back seats. I took my out last year and have all this extra room.

Sent from my Pixel 7 using Tapatalk

Yeah been thinking about doing that. Plus a myriad of other things.

But i need to get on top of the cooling issues first. Which has gotten worse over the last few years. I have a feeling/ hoping, its the injector pump, worn out or something and its overfueling. As i also notice the EGTS are higher than normal. I don't really have the know how on removing the injector pump to get it tested, and putting it back on, and i don't have the money to pay someone to do it, so it will probably be one of those things that i just put up with.

I did a 4500k trip last month in the Patrol and the water temps were fine then, but i wasn't towing, and the hottest day we saw was 24c.