Graham;
It has certainly taken Rotax long enough to address this problem. However in
the last few months they have flooded us with Service Bulletins and Service
Letters. Could it be the military's use of the 914?????????
I also, did not know that reducing the glycol mixture would also reduce the
boiling point until reading the current Service Letter. I am using 80/20
mixture here in Florida, and I must admit that with the overheating problems
on the ground we are having, I probably will keep things as they are.
Jim Brown
Graham Singleton wrote:
> >The overflow bottle SB914-025 only affects engine serial #s up to S/N
> >4,420.316
> >The Service Bulletin for the 912 series is SB-912-039
> >Jim Brown
>
> It was the overflow bottle that was the main cause of my problems 3 years
> ago. My bottle exploded and filled the cowling with coolant vapour. Not
> quite enough to stop the engine unfortunately. I also didn't realize when
> we diluted from 75% glycol that 50/50 coolant mix boils at 115 deg C in
> free air and 130 deg C at the nominal 1 Atmos. overpressure. Should have
> checked, shouldn't I!
> Graham
>
>
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