OK

Thanks Edgar. I already have real Tygon tubing (Dubro), but from my experience with this tubing in gas engines, when it is put in contact with gas it will soften a bit and allow a full up and down travel even with a relatively light clunk.

Since this is my first contact with kero, I realy do not know but I thought that might happen the same. I am talking about a new line.

If it does not softens a bit I really have to think about another solution for the saddle tanks because the line has about 3"" or 80mm of tubing and thus do not allow full up and down travel unless I put a ton in the clunk. Under my point of view this is realy important to avoid flame outs.

I could put a longer lenght of line in the saddle tanks but these have a lateral belly and the clunk could get stuck doing a manouver like a tonneau. On the other and I would like to avoid solder the clunk, because might be prone to come apart any time during flight unless it is silver solder.

Any imputs and links welcomed

Nuno