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'72 K5 - Greg's @MightAsWellK5 Build

This is the build description. I will improve this later. (GB)
Overview Gallery Discussion
4X4HIGH said:
Greg, AN stands for Army Navy and the Army uses 37* on any kind of fitting and it just started to be used in the automotive industry as well. There are "AN" fittings that are 45* but they aren't TRUE AN fittings because of the flare angle. Think about this for a minute, should you have a failed fitting "in the field" you might not find a 37* AN fitting as easily as you will find a 45* fitting. For that reason I would have choose 45* fittings in this case.
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What about specific applications like braking systems? Do those seem to standardize more on 37* vs. 45*? I 'm thinking mostly about things like splitter blocks were the flexible line drops down to the rear axle and then runs as a hard line to the backing plates...... also wondering about the transition from hard lines in the front axle to the braided hoses that go to the front calipers.

I'm really like to avoid having to use adapters a convert between all of these NPT / AN / 37* / 45* stuff.


More confusion. :dunno:


-G
 
If you buy automotive stuff at any parts store it will ALL be 45* fittings. If you buy from specialty stores then you can buy everything you want in 37* but remember if you're "in the field" and need to make a repair you are unlikely to find a replacement part without ordering it.
 
I build my cars with AN, easier to flare, higher success rate and much better looking. I adapt right out of the master and never do another double flare. I've done this in class 1 cars, sandrails, hotrods. Never have failures, the fab shop I use to run specialized in high pressure plural component spray equipment, so everything we did was JIC 37 degree fittings, AN stuff was just an easy transition for me

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ClassicStyle said:
I build my cars with AN, easier to flare, higher success rate and much better looking. I adapt right out of the master and never do another double flare. I've done this in class 1 cars, sandrails, hotrods. Never have failures, the fab shop I use to run specialized in high pressure plural component spray equipment, so everything we did was JIC 37 degree fittings, AN stuff was just an easy transition for me
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Is 37* Double-Flare really a "thing"...??

This still confuses me, unless I'm reading it wrong my new MasterCool kit says it does both single and/or double flare 37* fittings..... Would a double-flare fitting hold higher pressure or is it to make it more durable and less likely to fracture at the fitting since it's got twice the material folded into that connection??? :dunno:


EDIT:

Found some references online to using double-flare on aluminum tube since that makes a stronger and more durable connection. Perhaps stainless is a stronger metal (though once it's been annealed, who knows?). I also saw some references that for automotive DOT-approved braking systems, it is ILLEGAL to use single-flare connections.... so they will all be double-flared. However no mention on whether they could be 37* or 45*.... from @4X4HIGH comments previously though, it sounds like any OEM-type configuration is always going to be 45*




-G
 
4X4HIGH said:
Greg, AN stands for Army Navy and the Army uses 37* on any kind of fitting and it just started to be used in the automotive industry as well. There are "AN" fittings that are 45* but they aren't TRUE AN fittings because of the flare angle. Think about this for a minute, should you have a failed fitting "in the field" you might not find a 37* AN fitting as easily as you will find a 45* fitting. For that reason I would have choose 45* fittings in this case.
Click to expand...

I think this is a correct statement, however, after using exclusively AN stuff (37* flare) for the last few years rarely do you need to find a new fitting. Sometimes crap happens and you do need fittings but if a hose breaks it either gets field repaired with more fittings that are in your tool bag or replaced completely but you keep the same fittings. I haven't really experienced fitting problems in the field honestly.

If you have some wild ass special fitting that it was hard to find and mail order, get double what you need up front is my advice. And if you use 5 of the same fitting for your build, buy 6 and carry it with you.
 
4X4HIGH said:
You WILL NOT be able to double flare stainless tubing, it will split.
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Can't be sure if this is true... this is another one of those areas where the interwebs creates more confusion than clarity.

  • Welded seam vs. Seamless tubing makes a difference
  • Regular Stainless vs. Annealed Stainless makes a difference
  • 37* is fine..... 45* will split....
  • Don't "overflare" the tube in the flaring tool. Overflaring is what causes the split.

Start combining those variables, and it becomes clear that you can't really know what's true unless you know EXACTLY what materials and process was being used. For every person that claims something CAN'T be done, I seem to find someone else who argues that it CAN... :dunno:

I guess maybe I should take some comfort knowing that this is more complicated than I initially thought. Being confused about all of it shouldn't really be all that surprising.


-G
 
For what it's worth, I did all my brake lines in stainless and used a POS rental double flare tool (so 45° flares) to make all the connections. It certainly wasn't easy (mostly because of the flaring tool) but it worked. I wouldn't worry about it
 
Well.......

My VIAIR compressors are inexplicably lost somewhere in the FedEx sorting facility in Memphis, TN..... so I guess the process of ordering those starts all over again.

However, the lapping tool arrived last night and looks really cool (Koul) :)

IMG_7046e.jpg



I'd better choose a vendor for the coiled, annealed stainless soon (Inline Tube or Classic Tube?) all of these expensive tools keep arriving and I've got no material to actually make a flare with.....



-G
 
Chevy305 said:
FedEx is the worst, had a lot of bad experiences with them.
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I've been pretty lucky so far. I place about 150 orders per year with Amazon.com and I think this is only the 2nd time that something has been lost in the last 9 years.


-G
 
2017.06.06 - UPDATE! - !!! EVERYTHING'S BIGGER IN TEXAS !!!


The news seemed to come out of nowhere, but it became official yesterday.

I found out that I'm no longer going to be "that obsessive-compulsive guy building a 1st Gen in some remote part of NH".

My management just informed me that it's time to pack up my family, my life, and all of my personal belongings (including the Blazer project) and move them to Austin, TX!! :yikes:



I was in shock, and I suppose that I still am.... there is SO much to figure out, and so much work that I need to do to get prepared for the 1900-mile journey.

The good news is that I'm about to find out who all the Texas-based CK5'ers are!!! :waytogo:

I'm sure there are plenty of people here who have connections for things like realtors, contractors, movers, landscapers, etc. or just suggestions for great places to eat or fun family-focused activities that we can check out once we arrive.

:thinking:


My company hasn't provided many specifics yet, but it sounds like I will need to be completely relocated by the end of the summer. In the short-term there will be packing and getting the house ready to put on the market for sale. Realistically, the K5 stuff is going to take a back-seat to the other priorities...but at some point I will need to figure out how to get it assembled "enough" that it can make the trip either in an enclosed car hauler, or maybe just in pieces inside of a U-Haul as "car parts"..... :)



-G
 
Congratulations on the new opportunity and chance to relocate. Lots of good things to enjoy in Austin - good urban trails, a strong hotrod scene, and great BBQ.

However I can be a resource, let me know.

David
 
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