So, the race is over.
We only did a total of 223 km in 24 hours.
After 20 minutes into the race we lost our V-belt.
Contact with a stone deformed a bracket for the generator.
The temperature gauge wasn't working properly, so the driver at this time didn't notice it before losing engine power.
That was too late, he didn't make it 500 metres back to the paddock.
Piston was melted and jammed, you couldn't see the blue smoke in the gravel-dust.
The 2300 was dead.
We had a shortblock and cylinderhead of the 1800 in spare, so we did the swap in 10,5 hours lying in the mud/grass.
After that we were on the track for 2 more hours.
The glown out exhaust manifold cracked after the exhaust having harsh contact to a stone, so we had to wait for cooling down and welded it up (welding cast iron with MAG isn't working very well).
1 more hour on the track and the manifold cracked again, so the same thing again => cooling, disassembly, welding, assembly.
After this we finished the last 40 min on the track without problems.
It was hard and exhausting, but after all we hat a lot of fun and finished the race with a working car.