Mikec7z

anyone have any idea how to compress a teflon hose to a smaller diameter, or does anyone know where a hose fitting would be that could attach to a teflon hose that is slightly bigger than -12?

This is the oil scavenger line back to the dry sump tank on a c7, and I wanted to see if it was possible to tie into the hose, instead of weld into the hard sections of the line.

The hose fitting I have is for teflon, but it is slightly too small of diameter fitting. Anyone know, can I heat this up and try to shrink it down in diameter somehow, to the male portion of the fitting, so that the female part of the hose fitting can be gotten around the OD of the teflon hose?

atljar

Shrinking isnt going to happen. Do you have a hydraulic warehouse around you anywhere? We have a couple that do hydraulic hoses for construction equipment. In the past they have made all sorts of crazy custom hoses and fittings for me.

Mikec7z

yeah, south florida has them. I will also be up in oho in a few weeks. What company do you believe would make them?

Mikec7z

you say shrinking is not going to happen, however, where i cut the hose, it seems to be thinner in diameter at that spot... so deformation occurred it seems. Thats why I thought maybe a special press could bring it down in a size a hair so the size fitting I have will work.

Mikec7z

I think ive solved it, i found someone who can make the fitting. Ill know more tomorrow

atljar

Just the opposite of how a hose barb works. They should more or less be pressed into the hose, and the clamp is for backup. Relying only on the clamp means under vibration and pressure the hose will push off the barb.

I use Thamin Rubber, Ohio Hydraulics, and Parker. All 3 are within 10 min of me and all will make custom stuff.

Mikec7z

not sure how you quoted that, i edited it 3 min before you posted, must have still been fresh on your screen

I think ive solved it. What are your thoughts on permanent fittings vs the reusable fittings that can be screwed on and off?

Mikec7z

BTW, thank you for all of your help so far buddy

atljar

No problem. As much as you and I have had differences of opinion in the past, I always appreciate the totally different thought processes and welcome the discussions. This project can only be beneficial for the community, no matter how it pans out.


Permanent vs screw together... I hate assembling AN fittings. They can be a bear to get fully and correctly seated. Also, your hands will be sore and micro cut to a slow painful death. Finally, it's super easy to scratch up the anodized fittings.

If it's only for your car, it's fine. But for a production piece, the permanent assembled hoses with the compression pressed clamping rings are the only way I would consider

MustOBeenYellow2015Z

Just cut it behind the damaged section. Before so get some narrow / thin masking tape & tape it tightly behind that area, mark on tape where you want to cut the steel braided hose. I always used a air die grinder with like a 2"-3" wheel. Once cut, leaving the tape on the hose, I used a shat ton of anti seize to help get the AN fitting in. Hope this helps..

Mikec7z

im back to my original idea of just mass producing the monoblock fitting that screws into the engine oil pan and the dry sump tank.

It does not make sense to buy one of these hoses, only to cut it in half, and weld or hose fit fittings onto it.

And you are right about messing with the screw on fittings, total nightmare.

We will just sell the monoblock fittings to everyone and anyone who wants to buy them, for their own DIY kits if they so desire. They will work on all dry sump LT1/4/5 etc engines. Thats a big market, we will sell them off.

VictorBarron

WD 40 is also great for a lubricant in fighting the fittings war.