February 19, 2019, 07:44:04 PM

Author Topic: FS powersteering line o-rings  (Read 593 times)

Offline cholmes

FS powersteering line o-rings
« on: July 25, 2018, 01:20:33 PM »
Anybody know where to get the O-rings used on the factory FC power steering line fittings? 3-hole rack. Tried search, called Mazdatrix, they said they've never heard of anybody needing them and didn't know where to get them. Really? :scratch: My 30 year old O-rings don't seal any more, surely this has happened to someone before. Thanks in advance!

Offline jwvand02

Re: FS powersteering line o-rings
« Reply #1 on: July 25, 2018, 01:25:20 PM »
Your best bet is probably going to be to measure the rings and then procure by size.

Offline shainiac

Re: FS powersteering line o-rings
« Reply #2 on: July 25, 2018, 01:58:46 PM »
My PS system is still dry. I'll try and remove mine tonight and get some measurements with a caliper. If I'm lucky, they'll be in my Harbor Freight o-ring kit lol.
« Last Edit: July 25, 2018, 02:59:49 PM by shainiac »
'88 TII - 13BT, MS3X , EFR 9180 IWG, A2W Intercooled
539whp/407wtq @ 25.5psi

Soon to be Alum 5.3 GenIV LS, Twin EFR 6758s, T56 Magnum, Ronin 8.8" IRS, MS3Pro Ultimate

Build Thread      Instagram      Youtube

Offline cholmes

Re: FS powersteering line o-rings
« Reply #3 on: July 25, 2018, 02:27:12 PM »
Appreciate that shainiac.

Offline danny33

Re: FS powersteering line o-rings
« Reply #4 on: July 27, 2018, 08:42:32 PM »
are you talking about the 2 o rings for the banjo bolt on the high pressure supply on the rack?

Offline cholmes

Re: FS powersteering line o-rings
« Reply #5 on: July 27, 2018, 11:17:50 PM »
Quote
   are you talking about the 2 o rings for the banjo bolt on the high pressure supply on the rack? 

Yep.

Offline danny33

Re: FS powersteering line o-rings
« Reply #6 on: July 30, 2018, 01:53:02 PM »
i need 1 replacement O ring as well and have not been able to find OEM replacements or the actual size. I took some measurements using a standard caliper (i dont have a metric one). The banjo bolt OD where the O ring sits is .549". The Actual Oring approximate measurements are- OD- .715", ID- .548", and thickness- .088". I have been meaning to check the harbor freight o ring kit but have not had a chance. i will let you know if i find a replacement.

Offline shainiac

Re: FS powersteering line o-rings
« Reply #7 on: July 30, 2018, 02:05:02 PM »
My HF oring kit had an oring that fit the top (larger) oring okay, but was a bit too large for the lower.
'88 TII - 13BT, MS3X , EFR 9180 IWG, A2W Intercooled
539whp/407wtq @ 25.5psi

Soon to be Alum 5.3 GenIV LS, Twin EFR 6758s, T56 Magnum, Ronin 8.8" IRS, MS3Pro Ultimate

Build Thread      Instagram      Youtube

Offline danny33

Re: FS powersteering line o-rings
« Reply #8 on: July 30, 2018, 02:30:44 PM »
Converting those to metric, this is pretty close on Mcmaster, i might try it out - https://www.mcmaster.com/#9263K681

Offline danny33

Re: FS powersteering line o-rings
« Reply #9 on: July 30, 2018, 02:32:08 PM »
My HF oring kit had an oring that fit the top (larger) oring okay, but was a bit too large for the lower.

are they 2 different sizes? from the looks of it, the bottom o ring does not sit in the groove but sits above it which measures the same OD as the top O ring seat. If you are sure they are different sizes, then my measurements are for the top O ring.

Offline shainiac

Re: FS powersteering line o-rings
« Reply #10 on: July 30, 2018, 02:42:43 PM »
I'll double check, but I think the grooves on the banjo bolt are different.
'88 TII - 13BT, MS3X , EFR 9180 IWG, A2W Intercooled
539whp/407wtq @ 25.5psi

Soon to be Alum 5.3 GenIV LS, Twin EFR 6758s, T56 Magnum, Ronin 8.8" IRS, MS3Pro Ultimate

Build Thread      Instagram      Youtube

Offline danny33

Re: FS powersteering line o-rings
« Reply #11 on: August 05, 2018, 10:30:15 AM »
I'll double check, but I think the grooves on the banjo bolt are different.

So i messed around with the upper o ring on the lower groove and it is slightly too big on both the OD and ID. I will see if i can find the correct size or take some more measurements and report back.

Offline danny33

Re: FS powersteering line o-rings
« Reply #12 on: August 26, 2018, 08:37:49 PM »
I think i found a solution to the lower oring. I bought both these kits from harbor freight and part number A112 from the viton kit will work for the lower o ring. For the upper, the closest match is part number 113 from the blue kit. This o ring is slightly larger but appears to still seat flush with some force. I am only running the HF lower one and will let you know how it works.






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Offline danny33

Re: FS powersteering line o-rings
« Reply #13 on: November 23, 2018, 09:30:27 PM »
Happy to report back that i have about 25 miles on this PS setup using the mentioned O rings and there are no leaks (knock on wood). feel free to hit me up with any questions if you still need help.