Right - a weekend of problems, solved & unsolved was had....
Firstly, the coolant issues - after a morning of trouble-shooting at
@Halfdaft - including pressure-testing the rad.
the problem is the boiling coolant and then it overflows before the fan comes on.....
The decision was that I had buggered up the coolant ratio, so off to the Engen to aquire some new BMW-blue coolant, drained, measured accurately to 1100ml and filled - tested and voila! No boiling, no overflow, no issues.....
So, off to test it Sunday morning, packed some spare coolant and a few spanners, a tube & a pump and met Richard at 7am at the R59 Blockhouse North, for some technical track riding - oh man, what a blast, 2 hours of riding and I was properly tired, seriously unfit for the tight & twisty riding, but what a blast, had some of the best riding done in ages, I would not have liked to do this on my 1200 though..... The fan came on a couple of times, but no warning lights, and given the slow rate of progress, and the thick, high grass at some sections, I was extremely pleased with this!
After a couple of hours, and with some other plans for the rest of the day, I trailered up and headed home and washed Blisie of the mud & dust, and to check fluids.....
Oil - clear, full, no issues.
Overflow bottle - hasnt moved off of the mark.
Rad - just about DRY!
WTF!!??!!?? - the coolant in the rad has disappeared! Load up the 60ml syringe and start adding premixed coolant - added 190ml, including some burping....!!
So clearly the problem is not solved.......
Blitsie is running perfectly, no water in the oil, yet has vanishing coolant.....
Who has ideas.......
