Accumulator

Hi everyone! Where is a good place to buy a new ABS accumulator?:confused: Thanks.

I got a pump/accumulator assembly for about $10 from the auto wrecker.. Pick-n-Pull.
Nice.. powerful and expensive little 12V hydraulic pump.. But not needing either, i eventually threw it all away... kinda wish i'd kept it.

My symptoms were occasional ABS brake warning lamp lit up, and the loss of power brakes. My problem was traced to a clogged filter, probably due to polluted brake fluid (there's an inaccessible, internal filter inside the bottom end of the brake fluid reservoir).
Fluid was unable to flow freely and enter the pump/accumulator. Unable to reach and sustain high pressure, the pump eventually shut down (20 minutes of continuous running?), and no brakes..
A "new" junkyard reservoir was $6.. lasted 4 years and counting..
 
Been there, done that

A "new" junkyard reservoir was $6.. lasted 4 years and counting..

Yeah, I'm on my second used one now, it was good for a few months and now it's on the way out. I really just want to get a brand new one and be done with it. Tired of playing accumulator roulette. Anyone have any leads?
 
Yeah, I'm on my second used one now, it was good for a few months and now it's on the way out. I really just want to get a brand new one and be done with it. Tired of playing accumulator roulette. Anyone have any leads?


ooops.. I see you meant "New" new.. :(

afaik, all these things are is a steel ball and a neoprene bladder.. filled with nitrogen. I don't know why or how they would fail unless the neoprene were attacked by something. Of course there must be a seal or O-ring where it attaches, and that might leak for reasons unknown.
Without an external leak that points to the source, how can someone tell if it's the accumulator or a master cylinder valve?

anyway, if you call that company and get a price on a new one, i'd be interested to know how much they cost.

BTW, if anyone knows the true purpose of the various forms of power brake "boosters" i'd like to hear it.
I gather from the little I've read that they do not normally assist power brakes.. All they do is store enough emergency energy for a few power-brake pulses in the event of an untimely engine shutdown.
 


Excellent.. thanks for posting the link.

I became a Mark7 owner only because Lincoln Service Dept. was unable to diagnose a problem and therefore wanted $3,500 for an entire new brake system (around 2001) before they would warrantee their work.
So, someone gifted me the car, with a market value of maybe $1,000 on a good day.
And only because of this, I noticed something missing in the anti-lock braking system diagnostics. I mentioned it previously in this thread.

There's a filter in the brake fluid reservoir.
-------
Quoting from about half way down the page:

"Basic Troubleshooting"
"Hard pedal Amber Anti Lock and Red Brake Light always on."
[snip]
If the pump runs, most likely you have a bad Accumulator or the pump is not being supplied with fluid because sediment has plugged the low pressure hose leading from the reservoir. Check the hose is unplugged and if that doesn’t correct the problem replace the Accumulator. If this doesn’t fix your problem you are into a high buck Pump Assembly replacement.

------

This might be true of "1989-1992 Thunderbird SC ABS Systems" as the article is titled, but I have a '88 Mark7 LSC, and there's more to it.

Even if the "low pressure hose is clear", the upstream filter may be clogged. The easy test is to just pull the hose off the reservoir and observe if fluid streams out from the hole, or not.
(In my case, Lincoln's examination can't have included this test or they'd have caught it :mad: But on the bright side, if they did, I wouldn't have this nice car today :cool: )

The fluid reservoir is opaque.. the filter is difficult if not impossible to see.
I cut my original reservoir open and took the little corregated-paper filter out, so I know it exists. (My intention was to replace that filter and somehow reassemble the reservoir.)

Otherwise, that ABS page was most enlightening.. i thank you and my ride thanks you...
 
Part on order

Thank you everyone for the feed back and info (and links). The part is on order.:wrench $125 + shipping and customs:slam (I live in Canada). Still a helluva lot cheaper than the 345 bucks Ford wanted for it.:N
 
Switching to standard no abs brakes is alot cheaper, use a mustang booster and svo master cylinder with a ford racing proportional valve, some poeple like thier abs...i know, i ditched all that stuff when i had the vii, felt great with regular old brakes on it but cant beat that price :cool: for 125 bucks
 

Members online

No members online now.
Back
Top