Fusebox board condition

The "brown" stuff is aged flux residue from the soldering process, and it's not really delaminating as it was never laminated (it's more a construction of multiple stacked flexible circuit board layers that are joined at the solder joints where a terminal post passes thru). Any "burned" areas on the male pins where the white connectors attach would be bad, but I'd call yours typical-looking (and the female terminal in the white connectors would usually also be badly "burned" if a male tab is burned). If you search on "white connectors" in the TR section you'll get a boatload of prior threads.

 

Look for cold joints, they'll appear white/oxidized instead of glossy and over time can become the source of an issue especially with a stacked up design like this one.

At 30k miles, mine had multiple repairs performed, several burned white connector terminals, and many cold joints that were mechanically weak at best. If you can afford it, just have it replaced with the GT carparts solution. Thats where mine is right now. It is by far the best option and should save you a lot of time and hassle later on.

 

Also install the inline relays for the two radiator fans and condenser fan
It will keep the high amperage off the board

 

if you pursue the GT carparts option then there is no need. It is a modern eight layer board with adequate traces to handle the load.

 

I hope you are correct
I know of very few automotive non relay applications than can handle two 25 amp starting draws for an extended period of time

 

I did mine years ago it’s a straight line mod for the 2 fans and the condenser fan
Very similar to the mod you do for the starter ( you have done that I hope)
You just use the leads from the fuse board and splice in the relays to the associated fans
That’s it
I wish I could be of more help I am 70 years old and my foot is killing me or else I would go down stairs and take pictures of my mod
I might have some more information for you on this later in the week so stay tuned

 

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This is the basic layout for any relay installation
This is what I used
The pump is the fan for your application
You just need long leads to put the relays out of the way
I put mine in the forward well by the battery box