all right this video is gonna be how to properly check a rotor to see how thick it is to see if
you have it discarded or not and how to cut it and get it back onto the car so I know
this rotor here is a Federal Way of one point zero to four so you have to have a micrometer
here over a caliper turn it on it's set to inches let's open it up and check it
alright as you can see sorry for the focus it's 1.00 too so this rotor is garbage there's no need
to go any further and check now let's go check another rotor that I have that I will be using
to replace this one all right if you see this one is 1.09 for the throw away is one point zero
two four so I have 70,000 so I can take off effectively thirty thousands on each side so
that's more than enough to cut at this last time we'll get a cut and then see how it resurfaces
alright so our other rotor was that like 1.09 two or ninety four or something like that and
then we got it down to about one point zero seven one I think I'll double check it again
in the middle of cutting we're looking back on there's some rust here so I'm gonna taking the
count to some variation in there I'll probably take off a thousand or a 10,000 off each side
actually you know what I'll probably take I don't know we'll see when it starts cutting
but you got to do a scratch cut first and you see or the tip is touching the rotor and it comes all
that's about the three o'clock position and comes all the way around and follows to about the nine
o'clock so it's about 180 so that's acceptable same thing over here and say it starts right here
and that one goes way around to go that goes 3/4 of the way around so it's good so now we'll take
off a few thousands a Fastpass to clean it up and then we'll come back and slow cut it down
to the size that we need to match the root of the rotor all right I'll tell you why I have
one cutting right now the machine is not dragging the blades out yet it's just free spinning but I
dug in right there it's a little past sort of had seats that makes a clean nice surface and
I brought it in see right there there's a line there this one here is zeroed out so I'll bring
that one in make sure that knob is to the left there now I'll bring this one you can hear cutting
right now and I'll lock it down
make sure that my block make sure that was locked and we will do a
slow pass I'm sorry actually a fast there we go we'll leave it set up and come back
all right so if you can see I took off a lot of the rust but there's still some left over
this side cleaned up pretty decently I don't like that streak it got hot there apparently it looks
like but look at that sides good and we're at one nine one point zero nine all right if you
remember the throw away on the rotors were one point zero to four so this is one point zero
seven one five and some machine down nice and smooth on both sides and that's how you do it
to stay safe out there you know stay within the specs and I'll go ahead and I'll cut the other
one down to one point zero seven one or as close as I can to it so the brakes are equalized out
so about one point seventy out here so I got about twenty thousand s'more I can take off
alrighty so we're done cutting this rotor did a couple fast passes and then once low-pass came
out pretty good both sides are clean we'll spin it look for rotor run-out you can see I mean there's
there was no run out on that it's just a spring moving perfectly even outside we had about who one
point zero seven to one point zero eight somewhere around there let's see where we're at now
alright we're at we're at six three don't wait you get this thing Square on there yeah
six four it's close enough a few thousands off not too bad and that's how you do it
that's how you would get your rotors back in balance put some new tires on the car so I'm
a greased the front of it should have absolutely no problems thanks for watching please subscribe