Fixed my VIR-ified rotors today...

absolutcq20v · 05-09-2006, 08:14 PM

I had some MASSIVE pulsing after VIR 2 weeks back, and despite several (read: seven) 80-30mph 4-6 times each with stock pads, they were no better. And with having to drive 5 people to DE this Friday for a wedding, I needed to get it fixed. Here they are; notice the significant dark blue streaks...

(driver's side)

(passenger side)

(close-up)

Nice placement of the sign, didn't notice until now...

And I noticed my 25k mile control arms are already failing...

OK, back to the brakes: I decided to opt out of the 'hit them with an abrasive pad' method and go right to the lathe. Here they are, installed, after knockin a few thousandths off...

Ahhh, smooth braking again...and the rotors still have much further to go before reaching the wear limits stamped on the rotor hats.

Now just to address my airbag light and the 'positive deviation' and O2 codes from the other day; it never ends. :P

genxguy:gettingclose · 05-09-2006, 08:27 PM

arob · 05-09-2006, 08:48 PM

Not sure what I'm gonna do about them....if anything....yet.

P I'm just hoping they'll go away.

Fairfax 2.7T · 05-09-2006, 11:53 PM

We'll see after I drive around with some abrasive pads, but it's not looking good.

Jim

RLG · 05-10-2006, 12:22 AM

Stoptech "rents" them out. I rented a set but decided to keep them. They work wonders.

BTW, what size are your rotors?

absolutcq20v · 05-10-2006, 05:16 AM

...dead straight (no run out), I only removed between 0.003 and 0.005 from each face, and it was most likely just pad material, as the metal shavings left over was minimal (didn't have my camera in the machine shop).

I'd second Gedeon's suggestion, Stoptech likes them and I KNOW you're going to see a few more events. Afterall, it's only money. :P Good luck with them.

**Kris Hansen** · 05-10-2006, 08:03 AM

The inner bushings were tightened at full droop, which causes the inner bushing to over-twist.

absolutcq20v · 05-10-2006, 09:49 AM

That's what I get for not referring to the Bentley. I'll see what it says and maybe loosen/tighten the bolts, just to stop the fracture from continuing. Thanks for confirming my thoughts.
C'est la vie.

**Kris Hansen** · 05-10-2006, 09:56 AM

it's in the bentley, but this is not something new or specific to these cars..

05-09-2006, 08:14 PM	#1
absolutcq20v Member Account #: 13357 Join Date: Dec 2000 Posts: 21,322	Fixed my VIR-ified rotors today... I had some MASSIVE pulsing after VIR 2 weeks back, and despite several (read: seven) 80-30mph 4-6 times each with stock pads, they were no better. And with having to drive 5 people to DE this Friday for a wedding, I needed to get it fixed. Here they are; notice the significant dark blue streaks... (driver's side) (passenger side) (close-up) Nice placement of the sign, didn't notice until now... And I noticed my 25k mile control arms are already failing... OK, back to the brakes: I decided to opt out of the 'hit them with an abrasive pad' method and go right to the lathe. Here they are, installed, after knockin a few thousandths off... Ahhh, smooth braking again...and the rotors still have much further to go before reaching the wear limits stamped on the rotor hats. Now just to address my airbag light and the 'positive deviation' and O2 codes from the other day; it never ends. :P

05-09-2006, 08:27 PM	#2
genxguy:gettingclose Member Account #: 40642 Join Date: Jul 2002 Posts: 3,438	I just run my car as normal on the streets for a few wks. Brakes go back to normal :shrug: __________________ ------------------- Burning My Wallet Wanted: Real estate clients for my wife so she can feed my track habit. For all your brake and tire needs

05-09-2006, 08:48 PM	#3
arob AudiWorld Super User Account #: 73217 Join Date: Apr 2004 Posts: 17,913	Mine are "slowly" going away. Pretty much normal at lower speeds. Not sure what I'm gonna do about them....if anything....yet. P I'm just hoping they'll go away.

05-09-2006, 11:53 PM	#4
Fairfax 2.7T Member Account #: 28004 Join Date: Nov 2001 Posts: 3,367	I hope my 3 week old Stoptech rotors did not get ruined at VIR from hard braking with pad buildup. We'll see after I drive around with some abrasive pads, but it's not looking good. Jim __________________

05-10-2006, 12:22 AM	#5
RLG Member Account #: 83796 Join Date: Nov 2004 Posts: 4,207	Hawk 9012s. They work for scrubbing. Worth having a set on tap. Stoptech "rents" them out. I rented a set but decided to keep them. They work wonders. BTW, what size are your rotors? __________________

05-10-2006, 05:16 AM	#6
absolutcq20v Member Account #: 13357 Join Date: Dec 2000 Posts: 21,322	Unless they're warped, I'm sure they're salvagable. Watching mine on the lathe, they were... ...dead straight (no run out), I only removed between 0.003 and 0.005 from each face, and it was most likely just pad material, as the metal shavings left over was minimal (didn't have my camera in the machine shop). I'd second Gedeon's suggestion, Stoptech likes them and I KNOW you're going to see a few more events. Afterall, it's only money. :P Good luck with them.

05-10-2006, 08:03 AM	#7
Kris Hansen Chief of Goat control Account #: 20 Join Date: Oct 2000 Posts: 66,548,190	Those control arms are failing due to improper installation... The inner bushings were tightened at full droop, which causes the inner bushing to over-twist.

05-10-2006, 09:49 AM	#8
absolutcq20v Member Account #: 13357 Join Date: Dec 2000 Posts: 21,322	Full droop? If you mean the suspension was fully unloaded, then you're right. That's what I get for not referring to the Bentley. I'll see what it says and maybe loosen/tighten the bolts, just to stop the fracture from continuing. Thanks for confirming my thoughts. C'est la vie.

05-10-2006, 09:56 AM	#9
Kris Hansen Chief of Goat control Account #: 20 Join Date: Oct 2000 Posts: 66,548,190	Yes, that's called droop. you have to tighten those bolts with the car's weight on the hub... it's in the bentley, but this is not something new or specific to these cars..

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