FS powersteering line o-rings

[cholmes]

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? My 30 year old O-rings don't seal any more, surely this has happened to someone before. Thanks in advance!

[jwvand02]

Your best bet is probably going to be to measure the rings and then procure by size.

[shainiac]

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.

[cholmes]

Appreciate that shainiac.

[danny33]

are you talking about the 2 o rings for the banjo bolt on the high pressure supply on the rack?

[cholmes]

   are you talking about the 2 o rings for the banjo bolt on the high pressure supply on the rack? 

Yep.

[danny33]

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.

[shainiac]

My HF oring kit had an oring that fit the top (larger) oring okay, but was a bit too large for the lower.

[danny33]

Converting those to metric, this is pretty close on Mcmaster, i might try it out - https://www.mcmaster.com/#9263K681

[danny33]

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.

[shainiac]

I'll double check, but I think the grooves on the banjo bolt are different.

[danny33]

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.

[danny33]

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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[danny33]

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.