that rack is not machined for teflon washer. requires o-ring and should not require sealant

Thanks! DSE never said try a O-ring I took it upon myself to give it a shot. And......woke up this morning to a small amount on the garage floor. It's not the best pic but you can see how the O-ring has torn some. I made sure the O-ring was wet with oil and it still damaged it.........ugh.

There should be a washer between the fitting and o-ring as far as I know.

Google 9/16-18 ORB and you will see fittings with washers.

Don

Female port damage?
 

Hey - Just thought I'd chime in on this one. I work for Parker Hannifin, and we make fittings by the ton. The second picture you posted shows a lot of damage around the base of the fitting. Can you take a pic of the female port WITHOUT the fitting in it? There should be a chamfer or countersink at the mouth of the female port - which accepts the o-ring. Either that port is buggered up, or the o-ring is too large in cross section - which will make it bunch up as it runs out of room while being installed. Hope this helps a bit.
Jim

PS. Actually just went back a page and saw the additional pics and comments...… We are getting closer!
#1. Measure from the shoulder / hex of the fitting to the end of the thread - you are trying to determine how deep that fitting will screw into the female port
#2. Now measure from the face of the female port down to where the fitting would bottom out...…. Don't measure to the center of the female port - as it looks like it is deeper there due to a drill point. You need to see what the
shallowest dimension is - out near the outer wall of the female port
#3. How do things compare? Is the male thread too long when compared to the depth of the female port? If so - it won't allow enough compression of the o-ring.
#4. To me - the chamfered edge of the female port looks poorly machined - I am seeing sharp metal there - which can cut that o-ring
#5. Have DSE tell you what that female port is supposed to be...… If it is a 9/16-18 SAE port - that is a standard design that everyone should be machining too. You cn then determine the proper O-ring size for the male fitting.
Using a washer to seal that joint really seems wrong to me. The chamfer at the mouth of the female port is there to accept an O-ring. DSE should know that.

I think the rack is made for an ORB fitting but, the Stat o seals work too. Parker makes them(and others). The crush of the washer and seal of the rubber is good. If it is steering fluid, I would use a Viton o-ring material. It is strong enough for some real harsh chemicals.

I know its suppose to be a dse rack, but I just looked at your pic again. Are you sure it doesn't use this style fitting?
https://detroitspeed-1.azureedge.net...F47968BAA-8516

Yeah, I asked about that. They said nope it’s the.....ORB?

I think I got it licked now! I went to a hydraulic shop and he had a better rubber O-ring and it seems to have worked. I put a few miles on it today and all seems good!

Looks like you need a washer between the fitting and the o-ring and the o-ring should have a thinner cross section...

Andrew

Wow does time fly! It’s been a year I’ve been on the road with it and the best way to describe the experience is ........ Love, Hate.

Just to catch up I have somewhere around 1400 miles logged, two Speed SF autocross events and did a AFR head upgrade.

That's awesome! Very cool to be out enjoying the car.