do discs have to be machined when changing pads? - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Suspension | Wheels&Tires | Brakes
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

Suspension | Wheels&Tires | Brakes Sponsored by: Discount Tire Direct

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 05-31-2004, 16:12   #1 (permalink)
kung pow guitarist
 
Join Date: May 2004
Location: Canberra
Age: 29
Posts: 67
do discs have to be machined when changing pads?

i was under the assumption that machining the discs could only be determined upon inspection but the guy i got a quote from said that if you don't machine them when u change the pads u may get unnecessary noise/vibration and some other hooha.
__________________
94 EF GliXR.
rockerfella is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-31-2004, 17:32   #2 (permalink)
known as tibbo
 
RaceCraft's Avatar
 
Join Date: Mar 2002
Location: Brisbane
Posts: 2,033
Re: do discs have to be machined when changing pads?

crap.. usually one machine to 3 sets of pads.... in theory its good practise to be safe but the variables on disc wear are numerous
RaceCraft is offline   Reply With Quote
Old 05-31-2004, 17:49   #3 (permalink)
BOFH
 
Casper's Avatar
 
Join Date: May 2003
Location: Giving the finger to speedcams
Age: 43
Posts: 7,777
Re: do discs have to be machined when changing pads?

Quote:
Originally Posted by tibbo
crap.. usually one machine to 3 sets of pads.... in theory its good practise to be safe but the variables on disc wear are numerous
I agree 100%. I only get mine machined every 3rd or 4th pad change (pads only last about 40,000kms max) or if the discs have been damaged from metal on metal or similar. Just be aware when you change pads they will take a while to bed in so you stopping power will be significantly less for a while.
__________________

Casper is offline   Reply With Quote
Old 05-31-2004, 18:10   #4 (permalink)
BA Fairmont ZL Fairlane
 
davway's Avatar
 
Join Date: Aug 2003
Location: warrnambool
Age: 36
Posts: 3,293
Re: do discs have to be machined when changing pads?

what everyone else said. if you machine them everytime then the discs arent gonna last long either.
__________________
HSV Herpes Simplex Virus
GAME OVER!
davway is offline   Reply With Quote
Old 06-01-2004, 02:08   #5 (permalink)
Registered User
 
venomXR6's Avatar
 
Join Date: Feb 2004
Location: dandenong/victoria
Age: 53
Posts: 195
Re: do discs have to be machined when changing pads?

i agree with all the above but just keep in mind ef to ba rotors are made from shit collected from the floor of the engine casting room my ef were undersize at 50'000k the ba were warped at 18'000k or maybe they do need maching if in doubt get a 2nd opinion cheers
venomXR6 is offline   Reply With Quote
Old 06-01-2004, 02:18   #6 (permalink)
Veteran Ford Member
 
Join Date: Feb 2002
Location: Searching for a new home
Posts: 3,657
Re: do discs have to be machined when changing pads?

The determinant should always be lateral runout and the presence of excess wear grooves in the disc face - there is no arbitary method that is effective such as every 3rd set of pads and to not have those tolerances (including rotor thickness) taken is to invite trouble.

This is especially the case with late model Ford rotors as they bear an uncanny resemblance to butter in terms of material hardness and can wear below minimum thickness very quickly.

Cheers
Russ
russellw is offline   Reply With Quote
Old 06-01-2004, 04:58   #7 (permalink)
Munch Munch Rice 4 Lunch
 
Join Date: Jul 2003
Location: Brisbane, Australia
Age: 31
Posts: 594
Re: do discs have to be machined when changing pads?

basically it would depend on pedal feel if you get a vibration or pulsing through the pedal under braking then yes machine the pads or as mentioned if you have had metal to metal contact on the rotor
RevHeadRon is offline   Reply With Quote
Old 06-01-2004, 23:53   #8 (permalink)
kung pow guitarist
 
Join Date: May 2004
Location: Canberra
Age: 29
Posts: 67
Re: do discs have to be machined when changing pads?

thanks. i talked to the guy and he said it's his rule to always machine the rotors cuz too often he gets people coming back and complaining about all of the above when he doesn't.

i got quoted $370 for general service (lube, oil, etc) and for all brake pads changed to bendix's, not ultimates though. if they need to be machined though it'll set me back $620. does that sound reasonable?
__________________
94 EF GliXR.
rockerfella is offline   Reply With Quote
Old 06-02-2004, 00:34   #9 (permalink)
known as tibbo
 
RaceCraft's Avatar
 
Join Date: Mar 2002
Location: Brisbane
Posts: 2,033
Re: do discs have to be machined when changing pads?

nope,, alittle over the odds i'd say.. i can get the DBA rotors for $66 (trade) thru Repco so the $62.50 each he is charging you to machine each one is expensive
RaceCraft is offline   Reply With Quote
Old 06-02-2004, 00:37   #10 (permalink)
Proud Ford Owner
 
Mike Gayner's Avatar
 
Join Date: Jul 2003
Location: New Zealand
Posts: 799
Re: do discs have to be machined when changing pads?

Whoa it's insane to machine rotors every time you change pads. You'll need new rotors every couple of years.
Mike Gayner is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Suspension | Wheels&Tires | Brakes



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
changing a 04 tarus to discs?? Arctic601 Ford Taurus | Mercury Sable | Ford Taurus SHO | 1986-2007 3 08-06-2004 22:55
changing pads naomi'sEA Suspension | Wheels&Tires | Brakes 1 04-17-2004 02:58
Changing front discs MKII240T Suspension | Wheels&Tires | Brakes 3 06-06-2003 08:41
New pads and rotors 4 RWC? navy blue Suspension | Wheels&Tires | Brakes 4 06-01-2003 04:16
changing rear disc pads EvilEA Suspension | Wheels&Tires | Brakes 9 02-02-2003 03:12

Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 18:51.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.