Brake Bleeder Screw

[Max Hoepli]

On the 1986 Turbo Quattro, the rear brake bleeder screws need a 8mm box end
wrench, the slave clutch bleeder screw a 7mm box end wrench.

Was not able to turn the front right bleeder screw. I think I'll have to
have it turned with vice-grips and use a new bleeder screw. Suggestions to
get new brake bleeder screws in the Toronto area?

Max

-----Original Message-----
From: John Larson [mailto:j.d.larson at verizon.net] 
Sent: Saturday, May 15, 2010 12:28
To: Max Hoepli
Cc: audi at humanspeakers.com; quattro at audifans.com
Subject: Re: RE: Brake Bleeder Screw

On 11:59 AM, Max Hoepli wrote:
> I can turn the front left bleeder screw with a 11mm 6-point box end
wrench,
> which is too big, a 10mm 6-point will not fit over nut. A 7/16" box
12-point
> end wrench is too big and a 3/8" 12-point box end wrench is too small.
>
> ????
>
> Max
>
>
>
> -----Original Message-----
> From: Huw Powell [mailto:audi at humanspeakers.com]
> Sent: Thursday, January 28, 2010 16:56
> To: Max Hoepli
> Cc: quattro at audifans.com
> Subject: Re: Brake Bleeder Screw
>
> One thing to keep in mind is that although "new" bleeders will be 10 mm,
> the ones installed in rebuilt calipers my vary.  I bought a pair of 4kq
> rebuilts for my 82 coupe, and one bleeder was 10 mm as expected, but the
> other one was 3/8".
>
> And as Mark pointed out a 1/4" drive 6 pt socket works great for
> loosening and final tightening.  If they are hard to undo, use a tiny
> hammer and repeatedly tap the ratchet handle, like the world's smallest
> impact wrench.  Lessens chance of breaking the bleeder.
>
> Whatever sort of tool you decide to acquire, I'd recommend getting a
> "set" anyway - they are cheaper that way, and you'll use the others
> eventually.
>
> Max Hoepli wrote:
>> Hi all,
>>
>> What is the box end wrench size for the bleeder screw for a 1986 Audi
type
>> 44? For what other cars is the same box end wrench size applicable?
>> I am told only to use a 6 point box end wrench.
>>
>> Max
>>
>>
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>>
>
Autoparts store "rebuilt" calipers are frequently equipped with whatever 
bleeder screws will "sort of" fit, and many are drilled and tapped as 
part of the repair process.  Unfortunately, most don't seem to have had 
the seats recut, or have been drilled on center, and it may be difficult 
or even impossible to stop them from leaking.  The less you paid the 
greater the chances of failure, right out of the box.  Cardone 
products,IME (here at the shop), have a dismal failure rate.

John