How’d they do it? Hydraulic lines.

Tim DeLooza · Post by **Tim DeLooza** » Sat Sep 15, 2012 6:38 pm

A recent project of mine has been putting dual hydraulics on a 1450. I decided since I have lots of single spool valves and dual spool’s are spendy and harder to get, that I would plumb in two singles. I mounted one on the side of the dash similar to the 1x9s and I moved the standard QL steering column mounted one over slightly to allow for more clearance on the fittings. Here’s what I ended up with (ignore the messes in the background)

Over all I’m happy with how it all is but I would like to find a better way to make tighter bends. I have a nice Imperial bender but it makes 1 1/8” radius bends which are too big for the tight bends needed near the hydro pump. The smallest bender I’ve found does 15/16” radius but that’s still too big so I made some dies and a “bender” of my own. It works ok for the first bend with the nut already installed, but it not really great for any of the other ones. Any ideas on what I’m missing or doing wrong? How does the factory make those nice tight bends?

Klapatta · Post by **Klapatta** » Sun Sep 16, 2012 7:02 am

Given the quantity of parts needed to be produced no doubt some form of production based single application or adjustable multi purpose tooling was involved.

Split form die tooling is able to generate much tighter forms than a wheel roll bender.

Farmallgray · Post by **Farmallgray** » Sun Sep 16, 2012 7:38 am

I can't answer your question, but nice work! Do you have a 37 deg flaring tool?

Tim DeLooza · Post by **Tim DeLooza** » Sun Sep 16, 2012 9:09 am

Todd, Thanks, and yes I have a 37* flare on all the ends.

Kenneth, That goes along with what I was thinking even though I haven’t ever seen a machine like that work. I did a little searching and watch a video on youtube about the dies being driven. That makes sense too. If I could drive/roll the outer die around the center it would work a lot better than sliding it around it.

Farmallgray · Post by **Farmallgray** » Sun Sep 16, 2012 12:27 pm

Tim,
Got a link to the video? I'd like to see how that works.

Klapatta · Post by **Klapatta** » Sun Sep 16, 2012 6:08 pm

If I could only get my house plumbing to look like this

Actually, the process is well refined going on generations for now. This closeup is of a Pratt & Whitney J58 as used in the Lockheed SR71
I have had the good fortune to examine one of these up close- that thing was covered with these pipes from end to end

Keeping in mind these engines were manufactured in the days before composites, high strength alloys, and investment castings- they were constructed almost entirely from titanium. And that stuff sucks I gotta tell ya

Tim, may your project turn out as well- not bad, not bad at all

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How’d they do it? Hydraulic lines.

How’d they do it? Hydraulic lines.

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