I honestly don't think there will be a problem with removing the rubber tube from the engine, just loosen the jubilee clip and pull off, thee are no serations, just plain pipe. I guess as the engine is 'pulling' oil in from the tank, it won't blow off. If the pipe ever gets a little stretched. there is plenty of spare pipe, so it's just a matter of cutting half an inch or so off. Sorry, that is probably a cm or so.
