ABS pump rebuild
 

I have an extra ABS unit that has a slight leak and i know mazda says they can't be rebuilt. I also know that a new unit from Ray Crow is 1700$ has anyone ever taken 1 apart and rebuilt it? It can't be more then a bunch of O rings.

Just trying to get some information before i dig into this thing.

FWIW, rebuilt 2nd gen ABS pumps can be found, but they ain't cheap, at like $600 a pop. My guess is rebuilt 3rd gen pumps can be found too. I ended up doing the ABS bypass job on my FC, but for fun I decided to take apart my old ABS pump to see how it works. The 2nd gen pump has 2 horizontally opposed pump pistons that were the only parts that needed to be sealed. Each piston had two of these rubber seals on them. These seals are similar to O-rings, but have a different cross section - looks sort of like a cloverleaf, and they are called quad rings. I had no luck finding these oddball seals anywhere at the time, and since the piston bores were showing signs of surface corrosion, I figured it wasn't worth rebuilding anyway.

I found a used pump on ebay for 60$ and figured it was worth a try see if it leaks. My old one is now sitting in a box and figured if i could rebuild it i put in in my buddy FD his pump leaks really bad.

quick google search of abs quad rings brings up http://www.allsealsinc.com/abs_gaskets.html they say they can custom make any gasket. Time to take the abs unit apart and ship off some parts.

I have had most of mine apart when I polished it ,I found the new o-rings at some little supply shop in Nashville.This was several years ago and I do not remember the name or location of the place ,that is a lot of help.I do have some of the o-rings in storage .

A friend is parting out his 95. What year is yours?

I currently have 2, 93 abs pumps. Both of which leak 1 way worse then the other.

I have a good condition 94 that I just removed if you are looking for one.

Thanks but i've already bought 2 working units on ebay. I'm not sure how lone they will stay working, in the mean time i'm hopping to rebuild the 2 leaky ones i have.

I feel a write-up in the making.... :suspect: