[urq] UrQ brake booster/servo

[n-engelbert at terrans.net]

I have a brake servo from an early RHD car in my 83 right now, I got it
cheap from England.  What I did about the shorter actuator rod was to buy
an M6 coupling nut and a fully threaded M6x75mm bolt and cut the head off
the bolt, threaded rod would probably also work, but metric threaded rod
is difficult to find in Ohiho.  I now have a spare brake servo kicking
around that I really ought to rebuild for when the current one fails.

HTH!

Nathan Engelbert
83 UrQ DA900453
89 90q
91 200q20v donor
91 200q20v avant


> Hi Eric,
>
> Thanks for the great info about the brake booster. You mentioned that you
> have a document that you were working on about the differences between the
> two
> brake boosters. May I have a copy of that?
>
> Also, I'll assume that the later P/N is the aluminum booster (857 612 107
> A)
> compared to the earlier one (857 612 107). My question is, are these two
> boosters interchangeable? The reason I ask is I was offered your BMW
> replacement
> and want to know what (if any) mods needed to be done in order to make it
> work.
> You said that the rod that goes to the brake pedal is shorter, can this be
> removed and replaced with the correct one from the original booster?
>
> Thanks again,
>
> Jim Furdyn
> 1983 UrQuattro #900170
> 1987 4000cs Q
> 1987 5000cs TQ 279,000 miles
> 1996 A6 Quattro Avant
> 1987 Mercedes Benz Truck model 1219
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