Hej Tore, fler skandinaver i farten på denna sajt.....kul..!
switch to english now to be polite - You could consider trying the so-called uniflow setup which will minimize airborne gadgets as Jan rightly puts it - just one more clunk and that´s it. Tried it myself recently on a sidemounted Saito 56 and it sure does work - in fact it is an old CL invention which is worth considering while waiting for the pump.
Please check the following thread

http://www.rcuniverse.com/showthread...37#post1344426

lycke till Tore......hej då..../Haraldd