Hydraulic "bomb" pressure unit
 

Hi all

Need some help/guidance please

Disassembled the hydraulic pressure unit on my car only to find there is no O-ring (item 3 in diagram below)

Part no. 857612079, does anyone have the spec/size for this, can't find it anywhere on line or one for sale!

Many thanks :tup:
Geoff

http://i1082.photobucket.com/albums/...b.jpg~original

Judging by the diagram, a new accumulator will come with the o-ring

Hi Mike.
Accumulator is working fine so don't need to replace.
Have been going through all the hydraulics with new copper sealing rings to cure a couple of leaks & noticed lack of O-ring when I came to refit to the regulator

Update
 

After lots of cross-referencing part numbers/suppliers, it would appear this pressure unit is also used on some late 70's & 80's BMWs, notably 6 series.

Research into these cars & parts indicates the o-ring on the brake pressure accumulator is 15.3x2.4mm.

Ordered a pack of 2 for the grand sum of £4.06 :tup:

Will see how they fit & post result for future reference.

Only just seen this :crazy: must have been :sleep:, well done finding that tiny part with a cross reference to BMW.

:tup:

Would be more like it .....:D

Hours of research, they are on their way, will be happy to post that they fit :tup:

Yep Z's galore i think :lol:

I am sure they will be bang on and you will be a happy man !

:tup::tup::tup:

As Bruce i also missed this one, well done for spending hours cross referencing, hopefully we will all benefit form your tenacity. Nice one. :rock:

:tup::tup::tup:

Ta :tup:
I actually really enjoy that sort of research. Surprising what else you find out.
What else is there to do on these dark nights :ihih::ihih::ihih:

:lol::lol::lol: That could be misconstrued :lol::lol::lol: