RHD gt4 fuse blocks

Can anyone with a RHD gt4 tell me if the white fuse block is on the left or on the right in their car?

The manual I have references LHD only and in that it's white on the left and black on the right, but in my car ATM they are the other way around. I am wondering if they are swapped in all RHD cars or have just been reversed by accident in mine.

Thanks in advance.

 

Shame you didn't ask a bit earlier was just with my car and would have looked. If no-one else answers I am out in it again on Sat and will try to remember to look.

Having said that I may have a photo if I can find it.

 

Here's a photo of mine. I'm going to fit Sam's fuse blocks.



The relay board looks a bit different to what's in the manual too.

 

Have looked but don't think I do have a pic. I will try and find time tomorrow to go and take one. Car lives 15 mins away.

 

Thanks, that would be much appreciated. I don't think I will be starting to change things over before Sat so no panic!

 

Hi Patrick,

They're the opposite way around. Presumably because they use the same wiring loom as the LHD cars and just flip them over for RHD cars. I had the same question when I replaced my fuse boxes until I worked out what they'd done.

Paul

 

Thanks Paul, that makes sense. I will leave them as they are then, and replace white with white and black with black.

 

Here's a picture Patrick:
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Hi Patrick mine 77 yr model as a ref also
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Thanks Gavin.

I have fitted Sam's fuse blocks and it now looks like this:



which is a whole heap better I think and will be much more reliable.

The black block actually fell to pieces when I removed it, and the white block already had melted the air con circuit - and that was the on the replacement white block.

The UK cars seem to have a few differences, I guess mostly down to the flasher re-wiring done by Maranello Concessionaires. There also seem to be a few differences between the wiring diagram and what's in the car, but since the wiring diagram includes an 'Amperometer' at position 47, I'm not going to treat it as gospel.

I still have some issues to chase, not least the choke lamp being on permanently and the radio circuit being short circuit somewhere, but at least the fans work now.

Just for completeness, this is with Sam's block and the covers:

 

They look massively better don't they.

I've used LED fuses, so that I can very quickly see if any of the fuses have blown (the LED lights up when the fuse blows).

Paul

 

Interesting that the wiring colours differ, though they do change down the loom without any mention. How I love 70's Italian electrics. Even today they still aren't the best for electronics. As I sell new industrial engines and it's always the electronics that are different to the other engines we represent.

 

Yeah, and yet people spend 100s of Ks on cars from them stuffed full of electronics, custom code and displays.

Wonder how they will be in 40 years time.

 

Hi Patrick

I think you've convinced me to replace my fuseblock. Although everything currently works fine but I know it is a weak spot. I did give everything a good clean with a wire brush a couple of years ago but now is the time

Do you have any more info on the rewiring Maranello Concessionaires did back in the day? There are certainly some extraneous wires coming off my fuseblock which bear no relationship to the wiring diagram and I have never been able to find out what the factory "flasher" facility was meant to do. I've not yet found a GT4 owner who knows. Most just look at me with astonisshemnt and say they are happy that ANYTHING works

Didn't have time today at the FOC National meet to take a pic of my fuseblock, was too busy parking cars, but I am out again on Monday and will take a pic so you can see what wires I have.

 

Hi Gavin

I think you've convinced me to replace my fuseblock. Although everything currently works fine but I know it is a weak spot. I did give everything a good clean with a wire brush a couple of years ago but now is the time

Do you have any more info on the rewiring Maranello Concessionaires did back in the day? There are certainly some extraneous wires coming off my fuseblock which bear no relationship to the wiring diagram and I have never been able to find out what the factory "flasher" facility was meant to do. I've not yet found a GT4 owner who knows. Most just look at me with astonisshemnt and say they are happy that ANYTHING works

Didn't have time today at the FOC National meet to take a pic of my fuseblock, was too busy parking cars, but I am out again on Monday and will take a pic so you can see what wires I have.

 

AFAIU they rewired the flasher switch so that it flashes the fog lights rather than raise and flash the main lights.

On my car it looks like the flasher relay is no longer fitted and there are some extra wires, but I haven't traced them all out.

I am in the process of trouble-shooting a short on the radio/hazard circuit, and there are a couple of other issues, so I am removing the front seats and centre console to see what's in there. The manual's circuit diagram doesn't 100% match my car as it still has an ammeter and glovebox light (for example), which I guess didn't make it onto UK 76 cars at least, so I wouldn't rely too heavily on it. If I find out any more I will post here.

I can recommend Sam's blocks but he posted in the Boxer thread that he only has a few left and no plans to do any more. I think Birdman's block would also work well, but I was happy to use the blade fuses and retain the covers. So if you want Sam's I would get your order in fast!

 

Too late - all gone, but I have put my name on his waiting list in case any of the other sales fall through.

 

I'd be interested to learn what you find out about the UK specific wiring and mine also has the headlight flasher relay removed and I'd like to be able to flash the fog lights if possible. However, I'm pretty sure I have a glove-box light.

Paul

 

Yours is a series 1 car with the fuse blocks in the glovebox, so that doesn't surprise me.

 

Good point, well made.

I'm really looking forward to getting my car back from the body shop. We're just waiting for the front bumper to be re-chromed. I've chosen to have the wheels stripped and re-painted while it's in, so it should look great when I get it back.

 

Two comments on fuse blocks if you're not able to get Sam's Gen3 design:

1. Birdman's fuse blocks are well engineered and will last forever. The only downside I could see was that the protective covers with circuit labels won't fit over the glass tubes.

2. Another school of thought says the original fuse blocks with torpedo-style fuses are perfectly reliable IF MAINTAINED... and another benefit is that the plastic covers fit as designed. The two "wear" elements in OEM fuse blocks are corrosion and spring tension. If checked and cleaned periodically (remove corrosion and make sure the clips hold fuses snugly), then the OEM fuse blocks should provide years of trouble free service. The problems arise when resistance builds up (usually corrosion), which leads to overheating and damage.

 

Looking at the wiring diagram, I assume what they did was to add a wire from the headlight flasher switch to the fog lights and remove the flasher relay completely. I guess the wire was added behind the instruments, but I haven't looked there yet.

The downside is that the rear fog light would also flash - but my car doesn't have a rear fog light. If you do have a rear fog light you would also need an extra pole on the fog light switch for the rear fog light only, and I bet they wouldn't go to that trouble.
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Here is a pic of my fuseblocks and relays. Not had time to analyse it yet compared to earlier pics.

Was speaking to a guy at our Thames Valley FOC monthly meet last night. He worked for Maranellos in period and agrees that the pull switch was rewired as as it came from the factory it merely lit the dipped lights without raising the pods. I experimented last night and although pulling the light lever didn't light the fog lights it did light the lamp below the fog lamp switch on the dash. Well at least it did so the first half dozen times I pulled it but then ceased to do so. So at least it seems like the pull is coupled to the fog lamp. Incidentally my 78 build has no rear fog lamp

But as it was 10.30pm I left it for the moment and will experiment again further in due course.
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Well all that proves very little. 4 fuseblocks all wired differently! Suprise surprise!

Does anyone have a diagram showing the bridging between the terminals?

 

Front view

BLACK
1 -> 2 .... 3 -> 4 .... 5 -> 6 .... 7 -> 8 -> 9


WHITE
1 -> 2 -> 3 .... 4 -> 5 .... 6 -> 7 .... 8 -> 9

I am not really sure why they made two different parts as they could have done it all with one.