It can only rust so much, once the free oxygen is gone, that's it.. unless you need to keep topping up

Turboman said:

Dunt the Fernox stuff make the rust go black?

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Not sure but nothing at all does the same.

Bobsticle said:

Not sure but nothing at all does the same.

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Think I will stick with the Fernox anyway, be on the safe side.

Bobsticle said:

I sold a kidney and use a waterless coolant. Mostly for anti corrosion but after a year the fluid looks as brown as it ever did.

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Was it one of your kidneys?

Had a few productive days. After the valley gasket replacement , the new rad is working fine with bluecol, thermo stat kicks in at about 75° no overheating problems. Set carbs up so no air leaks, ticks over lovely, no racing engine once warmed up and to my absolute surprise the float Chambers aren't overflowing any more. Real progress although a million jobs to do next week b4 I can even think about driving it!!
Just want to say a huge thank you to all who have contributed to my various shouts for help on here via at least 4 different threads. You lot are amazing!

Thanks so much

Pail.