Brake Pad Replacement.

Technical info on the Pontiac Vibe and Toyota Matrix including do-it-yourself info
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Cougar Vibe
Posts: 412
Joined: Tue Sep 06, 2005 3:03 am

Brake Pad Replacement.

Post by Cougar Vibe »

The front brakes on my '05 AWD have started squeaking...which is odd, as it only has 41K miles on it. That said, next month I'll be pulling off my snow tires and figured it's a good time to replace the pads with ceramics (probably Duralast...I've had good luck with them on other cars). Anyway, I couldn't find a picture tutorial here or on MatrixOwners.com; however, I did find one for an older Camry on ToyotaNation.com. When I end up doing mine, I'll try to remember to take picks and post them here.That said, does anybody know off-hand what mm size & torque specs the caliper bolts are? Thanks!CougarVibe
lovemyraffe
Posts: 4288
Joined: Sun Oct 07, 2007 3:08 am

Re: Brake Pad Replacement. (Cougar Vibe)

Post by lovemyraffe »

I believe the caliper bolts are 17mm, but I don't know the torque specs on it.
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djkeev
Posts: 1357
Joined: Sat Mar 14, 2009 8:51 pm

Re: Brake Pad Replacement. (Cougar Vibe)

Post by djkeev »

24.3 ft lbs for the caliper to holder bolts.78.77 ft lbs for holder to knuckle bolts. I don't know the size off hand.These numbers make me laugh, last week I just took a course for amusement ride repair certification and one of the classes was the metallurgy of fasteners. They blew the concept of measuring true bolt tension (tightness) with a torque wrench so far out of the window it is scary! Sadly, the best affordable option we have today to measure on site tension is still the old fashioned torque wrench. There are electronic ways of accurately measuring bolt tension in real application that NASA uses but it isn't affordable for us.Also used hardware clamps weaker at the same torque than new hardware does. An example used was to create 5000 psi of tension took a new bolt and nut 24 ft lbs to do. After releasing the tension and tightening up the same hardware to 24 ft lbs only 2100psi of force were created. To get the 5000psi of force required a torque of 49 ft lbs! Repetition of this same test using the same hardware was NOT consistent so no conclusion could be drawn about how to adjust torque for used hardware.Dave
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Cougar Vibe
Posts: 412
Joined: Tue Sep 06, 2005 3:03 am

Re: Brake Pad Replacement. (djkeev)

Post by Cougar Vibe »

Thanks guys!
joejoev

Re: Brake Pad Replacement. (Cougar Vibe)

Post by joejoev »

The caliper-to-bracket bolts are 14mm.The bracket-to-knuckle bolts are 17mm.
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