aRotax 914?
>Would just like to add that I know of two cases here in Austria where the
>plastic expansion bottle ruptured due to extensive heat and/or pressure
>and due to the fact that the very small vent hole incorporated in the
>screw cap was obstructed and possibly even totaly blocked!
>I would strongly recommend to check the vent hole in the red screw cap of
>the expansion bottle!
>In my opinion the vent hole - at least on my cap - was hardly visible and
>seemed too small; therefore I increased the size of the vent hole to 1,5
>mm and also drilled a second vent hole with a diameter of 1,5 mm.
>
>Klaus
Thanks for that Klaus, good to know I wasn't the only one! (Sort of)
If I ever install another Rotax I will add an overflow pipe to take any
boiling coolant overboard. I understand the BanBi already does this.
Sensible IMHO.
Graham
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