S.S. Fuel Line Replacement by Clay ?????, My math may be screwed up here Options

[914forme]

I have been reading and gathering the items to replace my plastic lines with SS, my plastics are real bad.

So I read Clay's nice documentation on how to do this. I get me some nice pieces of SS tubing today, come home. Look at my stuff and go DOAH!

Clay calls for 7/16" line for the main pressure loop and return loop. So I am wondering if the number got messed up.

I grab my calipers and start measuring

Fuel log, pump, and pressure regulators = .3271 okay this is about 8-mm makes good sense now.
3/8" line = .3750
7/16" line = .4375

So it looks to me I should have bought a few sticks of 5/16" line which is .3125 or 21/64s (yeah right) which is .2813

Or am I just smoking crack here (IMG:http://www.914world.com/bbs2/html/emoticons/screwy.gif) and this will work?
Or maybe all 3/8" line and make the hose stretch just a little.

(IMG:http://www.914world.com/bbs2/html/emoticons/headbang.gif)

(IMG:http://www.914world.com/bbs2/html/emoticons/welder.gif) and braze new ends onto the lines and build me some new fuel logs

Just wondering Clay is a great guy just thinkin I may be nuts.

Stephen

[Cap'n Krusty]

I don't understand the percieved need to replace the lines through the tunnel. I've worked on 914s since 1973, and have never seen the OE lines fail. True, they can fail in the area outside the firewall due to damage from an external source (and that part can be replaced with 7.5 mm or 9 mm hose), but the plastic lines are a classic case of "if it ain't broke, don't fix it", IMO. The Cap'n