G-60 rebuild or?
knotnook at traverse.com
Fri Feb 4 18:28:28 EST 2005
Be sure the chunk of wood is thick enough the first piston to pop doesn't
extend so far there's no seal to pop the second one.
At 12:45 PM 2/4/2005 -0500, Ingo Rautenberg wrote:
>Bernie, Thanks for the advice. Will have to go the air route (caliper
>removed from car) and avoid flying projectiles.
>As to bleeding the system biennially (every two years), I'm already bleeding
>the system biannually (twice a year). Not to say how often it was done
>before I bought the car or that tracking may have boiled the fluid ;-)
>----- Original Message -----
>From: "Bernie Benz" <b.benz at charter.net>
>To: "Ingo Rautenberg" <i.rautenberg at waratap.com>
>Cc: "200q20V mailing list" <200q20v at audifans.com>
>Sent: Friday, February 04, 2005 12:23 PM
>Subject: Re: G-60 rebuild or?
>> If the caliper is still attached to the brake hydraulics and loose from
>> carrier, you can use the brake pedal, otherwise use air pressure. Put a
>> piece of wood across the caliper to catch the first to free piston before
>> leaves its bore, or it will be across the room and you'll not get the
>> one to pop. If frozen as you describe, plan to overhaul all 4. You'll
>> agree after you see the insides of the first one.
>> If the boots are good you don't need rebuild kits, just a good internal
>> cleaning of all parts, seals and seal grooves. Polish the chrome plated
>> pistons with 600 grit paper. I use a silicone fluid as assembly lube.
>> Hereafter bleed the hydraulics biennially, to eliminate the problem.
>> > From: "Ingo Rautenberg" <i.rautenberg at waratap.com>
>> > Date: Fri, 4 Feb 2005 10:48:10 -0500
>> > To: "UrqList" <urq at audifans.com>, "200q20v List" <200q20v at audifans.com>
>> > Subject: G-60 rebuild or?
>> > Just replaced the seized right front G60 caliper on the Urq with one
>> > V8 and was hoping for words of wisdom. I initially thought the carrier
>> > were frozen (usually the case) though I tend to lube them up and check
>> > periodically. Mine were fine. The pistons were (are) stuck. The boots
>> > intact as far as I can see. So what do I do? Don't want to distort the
>> > pistons by using vise-grips or the like...
>> > -Ingo
>> > '91 200q20v...Slightly modified
>> > '84 Tornado Red Urquattro Euro spec
>> > '91 v8 quattro 5-Speed (not exactly stock) :-)
>> > '91 V8 pearl (new addition)
>> > http://hometown.aol.com/quattringo/index.html
>> > ---
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