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View Full Version : Having a whale of a time finding a Wilwood MC Fitting



ModernMuseum
12-21-2022, 06:55 PM
I have this MC I'm installing to replace an old one for the hydraulic clutch for my T-56 magnum, which has a 3AN male (hose side) to 7/16x20 inverted flare (MC side) for the fitting on the end. It didn't come with any adapter for this fitting.
https://www.amazon.com/Wilwood-260-15091-auto-part/dp/B01M2ALQ8E/ref=cm_cr_arp_d_pl_foot_top?ie=UTF8
204215

I've ordered a number of fittings, but none of them seem to be long enough. Example below (forget the washer). The inverted flare side is about 1/4" short and it bottoms out on the hex part before the tapered edge mates against the MC. I've scoured the web but can't seem to find one that's extra long on the inverted flare side. Anyone have a link to the right adapter?
https://www.jegs.com/i/Wilwood/950/220-14204/10002/-1
204214

I'm at the point where I probably just need to buy some hex and cut something on my lathe. Brass is way too expensive ($40 for a 12" piece), and I'd rather not use stainless. Would aluminum hold the pressure? I noticed Wilwood does have some aluminum fittings they sell on their site.

sccacuda
12-22-2022, 05:50 AM
Call Orme brothers, 877-676-3277. They make a lot of the speciality fittings for Wilwood products, like the 9/16 to 3/8-24 IF for connecting a stock GM rear line to a Wilwood master or proportioning valve.

ModernMuseum
12-22-2022, 06:50 AM
Thank you. I'll give them a call! I (a novice) could probably turn it on my lathe but at some point I've gotta ask myself what is the opportunity cost.

On an unrelated note, that's a really sweet Cuda. One of these days I hope to own one (also, FYI, the site in your profile doesn't appear to be working).

JustJohn
12-22-2022, 10:06 AM
Have you called Wilwood? They were extremely helpful, had the fittings I needed, and were happy to overcharge for them.

ModernMuseum
12-22-2022, 03:40 PM
Have you called Wilwood? They were extremely helpful, had the fittings I needed, and were happy to overcharge for them.

Ha, yeah, that's the conundrum. By the time I buy the fitting and get it shipped, I probably could have turned it on the lathe. Decisions, decisions.

dhutton
12-22-2022, 06:19 PM
The 7/16-20 thread is for the reservoir and isn’t a flare fitting. At least that’s what I see on the Wilwood spec sheet. They show the reservoir which has a simple 7/16-20 adapter.
https://www.wilwood.com/mastercylinders/mastercylinderprod?itemno=260-15091
https://www.wilwood.com/mastercylinders/MasterCylinderProd?itemno=260-12696

The outlet side is 3/8-24 inverted flare.

Sorry if I misunderstood.

Don

ModernMuseum
12-23-2022, 07:41 AM
The 7/16-20 thread is for the reservoir and isn’t a flare fitting. At least that’s what I see on the Wilwood spec sheet. They show the reservoir which has a simple 7/16-20 adapter.
https://www.wilwood.com/mastercylinders/mastercylinderprod?itemno=260-15091
https://www.wilwood.com/mastercylinders/MasterCylinderProd?itemno=260-12696

The outlet side is 3/8-24 inverted flare.

Sorry if I misunderstood.

Don

Oh, wow, I think you're right. The "inlet" comes from the reservoir. I think my old MC, which was s different configuration, had them the other way around.

So on the 7/16x20 outlet, do I just use an adapter with a metal washer like in my first post? I already have one of those.

dhutton
12-23-2022, 09:27 AM
Oh, wow, I think you're right. The "inlet" comes from the reservoir. I think my old MC, which was s different configuration, had them the other way around.

So on the 7/16x20 outlet, do I just use an adapter with a metal washer like in my first post? I already have one of those.
That connection doesn’t have any pressure so it should work. Maybe some thread sealant rated for brake fluid would be a good idea.

Don

JayBird
01-11-2023, 08:02 AM
Use fittings with o-rings. I am using same MC on my build. I used -4 AN with O-ring for reservoir side and pressure inlet. Standard fitting is not long enough to mate to inverted flair on pressure inlet side unless you use the adapter that came with MC. I didnt want to use adapter, so I went with fitting with o-ring to seal.

protour_chevelle
01-12-2023, 06:32 PM
its an oring fitting. ORB. the factory fitting is some times a 90 with a o ring, washer and nut, so you can jam the nut after the 90 is pointed how you need it.

ModernMuseum
01-19-2024, 11:22 AM
Btw, just wanted to bump this with a solution as opposed to a problem. Ha. On the fitting that comes out of the low pressure side the hydraboost, I ended up buying and using some ($$$) loctite which is suitable for hydralic fittings.. I think it cost about $25 for a tiny bottle, but it worked.