[T3] AN fittings

[jadney at vwtype3.org (Jim Adney)]

Keith,

You might find an Aeroquip catalog informative. It covers all their hoses and 
tells you which fittings are suitable for which hoses. They are NOT 
interchangeable. There's quite a rabbit hole here.

Jim

On 30 May 2021 at 10:55, Keith Park wrote:

> Well I finally got the couple little oil leaks worked out and the engine
> clean when one of the cooler lines started gushing, well. a drop a second
> and you wont
> 
> Get far that way.  I AiNt got confidence in those AN fittings anymore,
> didn't like them when I put the hoses together and now.
> 
>  
> 
> There appear to be 3 kinds for the braided stainless hoses:
> 
> The one with the barbs
> 
> The one with the straight nipple
> 
> The one with the tapered nipple
> 
> All 3 have the collar that the hose goes in and screws over the nipple end.
> 
>  
> 
> The one that failed was the tapered nipple, it was fine till it let go, was
> still tight but the oil was dripping out where the hose entered it.  I took
> it apart and didn't find any cracks in 
> 
> The rubber hose, but some of the rubber had thread grooves in them.  The
> Utube videos all say to insert the hose in the collar till it bottoms then
> screw the whole thing on the nipple, and that's what I had done when I built
> these.  and there was no evidence that the hose had backed out anyway.
> 
> 
> Frustrating, and a real worry for me cause if this had not been the worst
> Memorial day weekend weather in Albany (3 days of rain and at least 2 with
> record low maximums) I would have driven up to the camp yesterday and run
> all the oil out before I even knew I had a problem, and here I am trying to
> keep my eyes OFF the gauges.
> 
>  
> 
> So I built up a new line with new hose, one end was the tapered nipple and
> the other straight, not sure why they supplied 2 different kinds when I
> bought the Setrab cooler but that's what I got.
> 
>  
> 
> At least I had plenty of time to fix it this weekend stuck inside, but the
> bad weather may have saved a real disaster and another thing all the bad
> weather will give us is the chance
> 
> To really remember why we celebrate memorial day, and have all the freedoms
> to drive our VW's anywhere we want, a hail to all those who have served and
> paid the ultimate price
> 
> To give us those freedoms.  Sometimes this is forgotten when the sun's out
> and your on the beach with a beer.
> 
>  
> 
> Thank you to all our veterans and those who are serving!
> 
>  
> 
> So, Anyone else have or heard of failures with the AN fittings??
> 
>  
> 
> Keith
> 
> 
> 
>  
> 
> Topnotch Restorations
> 
>  <mailto:topnotch at nycap.rr.com> topnotch at nycap.rr.com
> 
>  <http://www.topnotchresto.com> http://www.topnotchresto.com
> 
> 71 Squareback  "Hothe"
> 65 Notchback  "El Baja Rojo"
> 
> 93 RX7  "Redstur"
> 
> 13 Subaru Outback "Blendin"
> 
>  
> 
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-- 
*******************************
Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA
*******************************