O-Rings for power steering hoses

64.5ragtop · Dec 31, 2008

Could use a little help for the veterans, please.

I replaced the power assist cylinder on my 64 1/2, 289 and also had new hoses built for it to the control valve and they leak bad.

Was I supposed to get o-rings for the hose fittings?

Didn't see any when I took it apart, none in the old cylinder either.

Thanks for any help.

BarnStang · Dec 31, 2008

If the 64 1/2 is the same as the 65-66, then no, there are no O rings. It's a flare fitting on both ends. So, either the hydralic shopput the wrong fittings on, or they are not tight enough. Sometimes you have to really tighten them to get the leak to stop. But to the point of twisting the fiting off in the seat. If you take a good hard pul on the fittings and hey still leak, you need to take it apart and visualy inspect the flare on bth ends. THere has to be a reason the flare is not seating.
Are all the fittingings leaking? If not, which ones are leaking speciffically? And let us know speciffically which fittings got replaced.

64.5ragtop · Dec 31, 2008

Nice looking ride BarnStang.

I had both the hoses built so all new fittings on both hoses.
Being a newbie, I do not know which hoses are which, will research though.

They leak even before starting the car. Once I started the engine, fluid just poured out.
I was thinking I did not get tight enough because of the tight quarters and hard to get a wrench on them. They do feel tight though

Still have the old hoses so I can look at the fittings and take to the shop to compare.

Any special tool or trick to get a good angle on them to tighten?

Thanks man.

l1k2gadd · Dec 31, 2008

BarnStang a 1964 & 1/2 has a different power steering setup than the 1965 and 1966 Mustang. The reservior and the pump are seperate units. I am not sure if the hoses are different or not and if the older systems use o-rings.

I recently won a Power Brakes and Power Steering Systems 1960 Ford handbook (edit) on e-Bay (end edit) and it says the 1960 cars have TUBE SEATS in them.

l1k2gadd · Dec 31, 2008

e-mail sent

64.5ragtop · Dec 31, 2008

My car does have the seperate reservior, on the fender, and pump.
How do I determine if I need tube seats and where would I get them?

Thanks guys.

l1k2gadd · Dec 31, 2008

I haven't figured out how to post pictures to my replies. I took a picture of the page that states a leaky hose could need tube seats but I don't know what they look like. There is no picture showing the tube seats. I would check with a good auto parts store like Napa or CarQuest, or an equivalent store in your area, that will use a book to look something up that isn't on their computer to try to find out what they are and try to get them for you. This would be my suggestion, or, ask the place that made the hoses for you. They may know, or may have forgotten to give them to you.

(edit, again) This handbook shows how to do control valve adjustments, rebuild the 1964 & 1/2 style pump, the control valve on the center link, the power cylinder on the center link, and more! (end edit)

64.5ragtop · Dec 31, 2008

Thanks man, as much as it leaks, something is missing.

The store I bought the cylinder from is a Mustang shop and the place that built the hoses is one of those "been around forever places". May find something or someone that know's.

BarnStang · Dec 31, 2008

And there ya go. I wasen't sure. They are different. Thanks !
Here is a site that may also help...
http://www.stangerssite.com/

Edster · Jan 1, 2009

The slave cylinder (ram, power cyliinder etc) is supposed to have aluminum inserts or "seats" installed in the hose connection. If these are bad or missing it will leak. It will leak real bad if they are missing. You can order these online from different shops, I got mine from a Falcon parts house0 Or you can try to take the unit back and get it exchanged. Look inside the hose conn. and you sould see a conical aluminum "doomahickey" in there . If not then you need the fittings. If it is there it should have no groves in it. If so it will leak. Because the fittings are there you should not have to make the connections gorilla tight if so it will score them it later they will leak.
GOOD LUCK!

64.5ragtop · Jan 1, 2009

Thanks Edster,

Should I have four of them, two for each hose from the cylinder to control valve?

Edster · Jan 2, 2009

Yes, but there is a larger one from the pump to control valve and return hose as well but those of course would be in the control valve. I went through this when I rebuilt the "power" side of my unit. Now the pump to reservoir seals leak! Althogh it isn't too bad. My Dad had been chasing that ghost forever when he had the car. I was looking at the shop manual and it tells you to replace the seats. I thought I would never find them. I think CJs might have them. You can look them up online as well but I forgot the ford part number.

stanger53 · Jan 2, 2009

Hose Seats

If your cylinder leaked that bad without even starting the system up, the cylinder may not even have seats in it. A lot of places sell a Maverick power cylinder as a replacement for the early Mustang unit since the overall dimensions are very close, but some of the later Mavericks had cylinders that did not use seats, but used special hoses and rubber o'rings instead.

Many rebuilders do not replace the seats during a rebuild, and the old seats are grooved up from years of having hoses tightened (and over-tightened) on them. Check to see if the cylinder has the seats in them. If so, they are probably damaged and will never seal properly, even with new hoses.

http://www.stangerssite.com/CanIPowerCylinder.html

64.5ragtop · Jan 2, 2009

I do have the conical doomahickey's in the cylinder and the control vlave. Hoses look right, as far as the fittings. Beginning to think I did not get them tight enough.

Any suggestions dealing with the clearance issues? Can't get the wrench into any good angles to get a good turn. Special tools I should have?

Thanks everyone.

BarnStang · Jan 2, 2009

Do you have a set of line wrenches? THat would make it easier.
This is the best picture I could find quickly...
Wrenches:Flare Nut/Line Wrenches

l1k2gadd · Jan 3, 2009

64.5ragtop I purchased a couple of rebuild kits for the 1966 Mustang I bought for my daughter. The power steering pump and power cylinder were pulled from this car by the former (2nd) owner when one or the other went bad so I was going to reinstall the parts to make the power steering work again. I got both of the rebuild kits (for the power cylinder and the control valve) from the local NAPA store.

The book I took the picture from that I sent you, that refers to the tube seats, also has a page that shows a procedure to remove and install the hose seats in the power cylinder. If this is where the leak is and tightening the hoses doesn't fix the problem I can try to get a good picture of that page for you too.

64.5ragtop · Jan 4, 2009

Thanks guys,
I will let you konw how it goes. It is killing me not to get the hoses on, but I got sick and am resting so I don't miss work.

Got the flare wrench's that I didn't have before so am hoping that will make the difference. The tube seats look good.

O-Rings for power steering hoses

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