Auto trans cooler hoses?

[wwheeler]

The only issue with painting the sleeve anodized is that it would have to be done after the hose is installed. There is too much handling of the sleeve during installation for the paint to hold up.

[Shvegel]

Anodizing doesn't look like an incredibly tough process.  I will see if I can work it out when I get back.  I am not 100 percent sure but I think the W113's only have one 90 degree hose end and the other is a straight steel end. 

[wwheeler]

Anodizing isn't difficult, just involves heating and such. There was a video for that on You Tube. My problem is there is such pitifully little that is anodized on these cars, not sure it is worth the time to learn and get materials. But if you do.......

[Shvegel]

Could someone supply me with the following measurements?

Diameter of the INSIDE of the steel swivel nut

Outside diameter of the yellow sleeve.

I am stuck at work until April 1 and want to get some supplies coming for when I return home. 

[wwheeler]

I can. It might be later today or tonight. I just need to pull the parts I have.

Wallace

[Shvegel]

Thanks Walter!  If possible if you could also measure the tube diameter of the elbow tubes?

[wwheeler]

I don't know how accurate you needed this and is not to scale. These drawings are cross sections of the parts (profiles). A couple of notes:

- The sleeve has two threaded areas - one course that threads onto the hose (.501") and the finer threads (.395") that are the same as the threads on the fitting. Keep in mind, these are the IDs and the smaller diameters of the threads. So not the actual thread size, if that makes sense.
- The measurement of (.425") on the threaded fitting IS the thread size and looks to be about 11mm. I didn't measure the pitch, but can if you need. (.295") is the hole going through the fitting. 

- The ID dimension on the hex nut is (.575") and also not the actual thread size.

Hopefully that makes sense and it helps if you look at the exploded picture I posted a few back.

Wallace

[Shvegel]

Thanks Wallace!  That helps a lot.  The inner thread on the aluminum sleeve is the tough one.  I am not sure my lathe will go that coarse. The rest is fairly straightforward.

[wwheeler]

If you are making these yourself, I am not sure the hose threads in the sleeve have to be exact. You just want something course that will grip the hose. Sort of like a spiral barb on a hose fitting but on the ID.

[Shvegel]

I have a set of fittings and they are actually pretty nice except for the one 90 degree angle fitting. The yellow anodized fittings are faded etc but I might try to skim them on my lathe and re anodize them.  Just a fun project to try and figure out. 

[wwheeler]

I just received the Belmetric hose and did a dry run. The hose fits perfectly and should work very well.

Wallace

[Shvegel]

Well,  I am home for the month.  I arrived to find a bag of parts from BelMetric.  This elbow fitting is half the battle. I only need to make 1 end.  Of course as with every other pieces I have custom built it has an odd thread. 11mm x 1.0 which means I have to spend $40 and wait a couple weeks to get the proper Tap and Die. 

I figure I can turn the other end and braze it on then thread it later.  Here goes.

[Aaron h]

Well, at least the threads aren't British Standard or Whitworth. 11x1.0 is pretty common, too, so you shouldn't have any trouble finding a tap and/or die for that size. 

[wwheeler]

May the force be with you! I bought the green spray paint the other day and just now have to paint the hose. Luckily for me, I have the original fittings. I went on a buying spree many years back when I found out about this figuring the parts would be few and far between when I need them. I also have the parts for the engine oil cooler hoses and will do those as well. BTW, I found out about these hose fittings on this site.

At the moment, I am reassembling the driving light housings on my W128. It is amazing how complicated one can make things. The picture is all of the parts I have to put together.

[wwheeler]

In regards to anodizing the sleeves, I think Cerakote makes a color that may mimic a yellow anodized finish. That would be much more durable than just plain spray paint.

[Shvegel]

Thanks for the info. Your lights look nice.  I have all the parts as well.  a couple of them are showing weather hence the redo.  I am going to make a couple of dummy sleeves out of some 6061 Aluminum I have.  Then I will see how tough anodizing is.  I have the correct yellow dye and the chemicals are not very hard to get but the temp control may be an issue. 

As for the oil hoses I did find a suitable hose at an aircraft supply house(Name escapes me) with the correct cloth wrapping but if memory serves your hoses are larger than the W113?  Was the hose I sent you the right size?

[Shvegel]

Today’s output X2.  Now I need to wait for the die so I can cut the threads.

[wwheeler]

Did you braze material on the end of the new fitting? It looks fantastic!

I cannot remember on the oil cooler hose size. It think it was the next size too big, but it has been many years since I looked into that. I do have a hose that works, but it isn't a fabric wrapped hose. I gave up trying to find that unicorn hose - black, fabric wrapped, exact size and no markings.