BTTF Time Machine Build Questions - Ask Me Anything

[Mark D]

One hose not listed (due to the lightning rod holder in it's place) is this guy:



I believe it is Aeroquip type/brand. A quick search for aeroquip on EBay pulls up both hoses and end fittings.. many look pretty close to the screen used. Mark, do you know the proper sizes for these fittings?

I will definitely attempt to frankenstein parts together. As you've mentioned the real hoses are either rare or crazy expensive.

Hey Drew,

The red/silver hose is Aeroquip brand PN 601021L0150. It would be a miracle to find one of these in the wild, so you'll be more likely to build one with the correct hose and end fittings. The hose and fittings are AN size -12, although the flange fitting on the 90 deg end is a size -20 flange. In total you'll need:

1x Flare Fitting (Straight end with blue nut) 816-12D
2X Sockets (Red hex part that screws onto fittings and captures the hose) 516-12D
~16" of wire braided hose 601-12D
1X Blue mounting flange for 90 deg end 9644-20D

And last but not least the actual 90 deg flange fitting, 8585-14-12-20D. You'll probably have zero luck finding one of these so you have a few different options:

Use a regular 90 deg fitting (standard flare) and remove the blue nut. You can mount the standard 90 deg end directly to the 'trapezoid' instead of using the blue flange to hole it in place. The diameter of the regular 90 deg flare end will be but a fraction of the diameter of the blue -20 flange mount, so you can also weld/braze on an aluminum disc and paint the fitting red with anodizing paint to make it look more accurate. Or you can just leave the 90 deg end as-is and just rigid mount the hose itself into place and put the blue flange around the hose end making it appear that the flange is actually holding it there.

You can also get a size -12 flange fitting and modify that with a larger -20 end on it which will give you a more accurate look than modifying the -12 standard flare fitting. There would be welding/brazing involved here as well.

To mount the straight end of the hose to the aluminum bulkhead production fabricated a pipe coupler welded to a strip of bar stock (steel) and then threaded the straight hose fitting on to it. The coupler is held onto the bulkhead with a couple of screws.

Hope that info helps. It's a little complicated to describe without having many pictures on hand. If you need something more visual to get what I'm trying to describe let me know.

As far as cost goes for all the pieces you can still expect to spend somewhere between $100-$200 in parts to build the hose.