Avcon Fuel Pressure hose/line

[C-GUNK]

I am working on a 170B with Avcon O-360 conversion SA806CE, Drawing list 17013. I do not have a copy of the install drawings . There is a fuel pressure hose from the carb. to the firewall and I'm wondering what it is supposed to be. What is there is Stratoflex 193-2 which according to my Stratoflex book is only for "low pressure air and vacuum instrument systems".

Thanks for any help,
Tim

[DaveF]

Avcon calls out an Avcon part number, so that's no help. Del-Air calls for Aeroquip 303-2 hose, but that size is not commonly available. Check around, maybe Aviall can get it. Or maybe you can buy the Del-Air part. It's 303-2-240, 24" long.

I'll be interested to know what you find, because my fuel pressure line is 193-2.

You can also have -2 fittings put on certain types of -3 hose.

[GAHorn]

I don't recall the reference at the moment (I'll try to locate it) but 193-2 is actually used for low press fuel/hyd in some approved installations.

[C-GUNK]

I couldn't get any real documentation, but my hose guy says 193-2 is used for some fuel applications, and my A&P textbook (not acceptable data, but good info) says that Buna-N (Strat. 193 material) is used "for applications in which petroleum fluids are carried." Looks like 193-2 with firesleeve is going on this a/c. Thank you folks for the help.
Tim