This used to be more common when people fixed parts more often than replaced whole assemblies like people do now. Nice to see it still going on a little bit. I needed just a piston to fix my brakes the other day but had to buy a whole new caliper because nobody sold just the piston, it was very hard to find. My old boss had a sensor go bad in his car and the dealer had to replace this whole gigantic assembly costing thousands of dollars just because a single sensor in it was bad. I'm glad I still have an old Toyota because they are still made to be fixed on an individual component level without having to buy whole new expensive assemblies for no reason, just bad design.
Skimming discs/rotors is generally a waste of money and time. The difference between the as new thickness and the minimum wear thickness is small on all modern discs. Also, most friction braking systems tend to require replacement of both the pads and the discs at the wear limit of either. By skimming the discs you will reach the wear limit quicker and then have to prematurely replace the pads. If you look at the cost of skimming and the premature disc/pad replacement against replacing the pads and discs with new, it quickly becomes apparent that skimming discs really is worth it especially as you will get new performance with new components. PS. given the light state of the surface rust, I would have carried out an intensive session of light braking that would probably cleaned up the discs to a workable state.
I know that he might be proud of his beard, but if he keeps leaning over that machine and it gets caught up in the brake lathe it will do him some real damage.
This used to be more common when people fixed parts more often than replaced whole assemblies like people do now. Nice to see it still going on a little bit. I needed just a piston to fix my brakes the other day but had to buy a whole new caliper because nobody sold just the piston, it was very hard to find. My old boss had a sensor go bad in his car and the dealer had to replace this whole gigantic assembly costing thousands of dollars just because a single sensor in it was bad. I'm glad I still have an old Toyota because they are still made to be fixed on an individual component level without having to buy whole new expensive assemblies for no reason, just bad design.
Skimming discs/rotors is generally a waste of money and time. The difference between the as new thickness and the minimum wear thickness is small on all modern discs. Also, most friction braking systems tend to require replacement of both the pads and the discs at the wear limit of either. By skimming the discs you will reach the wear limit quicker and then have to prematurely replace the pads. If you look at the cost of skimming and the premature disc/pad replacement against replacing the pads and discs with new, it quickly becomes apparent that skimming discs really is worth it especially as you will get new performance with new components.
PS. given the light state of the surface rust, I would have carried out an intensive session of light braking that would probably cleaned up the discs to a workable state.
Now just wait till the brake pads fall out when they wear down a bit. Far safer to throw the old disks away and fit new every second pad change.
An on car brake lathe…we have these at work… pretty cool
Makes sense if you have no access to cheap rotors for what ever reasons.
Thank you guys for your advice.
I know that he might be proud of his beard, but if he keeps leaning over that machine and it gets caught up in the brake lathe it will do him some real damage.