Subject	shaking steering wheel under braking
Posted by	shawnc on May 23, 2015 at 9:34 AM
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Message	Heavy vibrations under braking conditions seemed to have started after I replaced my brake master cylinder. Recent maint: New BBK all around, so no warped rotors. Tension rods with urethane bushings have maybe only 30k miles on them. Jacked the car up, no free play in the wheels so i suspect bearing are good. After doing an EVO bbk that felt fine except for a slightly soft/long pedal throw, I switched to the proper 17/16" BMC and flushed all the lines again and that's when I noticed the vibrations on braking. More info: 91TT 80k miles. Good condition shocks/struts lowered approx 1". No visual leaking from any suspension bushings in the front end. Car was recently aligned 2x by 2 different places, both saying it was perfectly in spec. Where would you look to and/or replace next? Track day coming up soon and want to be in good shape Thanks!
Follow Ups	shaking steering wheel under braking - shawnc 09:34:24 05/23/15 looks as if all the obvious issues have been address. Just - jzack 10:53:59 05/23/15 What if the new MC isn't applying equal pressure to the - jzack 11:01:32 05/23/15 I'll check the TR again, but I did the replacement in '05ish - shawnc 11:13:02 05/23/15 Re: looks as if all the obvious issues have been address. Just - ttz'in (norcal) 13:53:04 05/23/15 Did you bleed system per FSM, which includes - ttz'in (norcal) 13:56:22 05/23/15 Bled correctly per FSM. Usually 88-90ft-lbs star pattern. - shawnc 14:31:51 05/23/15 Sounds like your on top of things, start with BMC. - ttz'in (norcal) 14:58:46 05/23/15 You didn't mention if you torqued all the lug nuts the - Zuberman 14:49:22 05/23/15 Check the lateral runout of the tire, the rim and the >> - ZUL8TR 04:19:50 05/24/15 I re-torqued wheels to 75ft-lbs. The last alignment shop I - shawnc 09:15:54 05/24/15 My hotshot alignment guy here, (decades in the biz) told me - Zuberman 14:19:18 05/24/15 It has been said that most engine wear is at start up. >> - ZUL8TR 04:17:18 05/25/15 It depends on whether her husband has a gun ;-) (n/m) - Zuberman 06:22:09 05/25/15 Agreed. Those are things I try to explain to people. You run - Zuberman 06:23:25 05/25/15
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