Phillips screws on rotors.. essential?
06-01-2009, 09:18 PM
#16
Drifting
It must be a '85 thing because when I got mine, I thought the rotors were pressed on as well. The problem was actually galvanic corrosion between the aluminum hub and the cast iron rotor. Once I pounded the old rotors off with a ball peen hammer (soft faced hammers don't cut it) the new rotors went on and off without difficulty.
I replaced my screws because I can get them at the local hardware store, and having them makes it a little easier to install the caliper. Other then that, there's no real benefit to having them. Put a little anti-seize paste on them and removal is easier.
I replaced my screws because I can get them at the local hardware store, and having them makes it a little easier to install the caliper. Other then that, there's no real benefit to having them. Put a little anti-seize paste on them and removal is easier.
06-01-2009, 09:31 PM
#17
Rennlist Member
Without the screws the rotors are loose and are quite heavy so when you pull the wheel and the loose rotor falls on your foot..............ouch.
I use the screws..........YMMV
I use the screws..........YMMV
06-01-2009, 09:58 PM
#18
Rennlist Member
Not true(IMHO)
IMHO the screws are for assembly(mostly) as has been mentioned, but one benefit to maintaining/replacing them is that without them, when you take a wheel off, if the rotor shifts around it is possible for some crud to flake off of the backside and drop between the hub and rotor. Then when you put the wheel back on it won't spin true.
06-01-2009, 10:04 PM
#19
Rennlist Member
...........just adding some levity 
06-01-2009, 10:13 PM
#21
Rocket Pilot
Rennlist Member
Rennlist Member
Join Date: Apr 2004
Location: gettysburg pa.
Posts: 3,298
Likes: 0
Received 0 Likes
on
0 Posts
Alot of cars don't even have the screws. If you are a PITA like me, you will want to do it right. Put a little heat on them and impact them out with the correct size bit. Even the most stuck of the stuck succumb easily by doing this.
06-01-2009, 10:29 PM
#22
Racer
Thread Starter
Everyone thanks for the replies..
It looks like it's going to be the drill and then try to twist the remainder of the screw off. I stopped by northern tool and picked up a impact driver.. whacked away a good ten minutes with no give whatsoever! Even went to the larger bit.. no give. Smaller bit actually bent counter clockwise slightly...
My car likes to give me a challenge. She occasionally freezes metal on metal and gives me a workout.. like the time I tried to replace the brake pads in grad school.. the pin was so frozen I couldn't drill it out and had to replace the caliper.. 30 years of heat and oxidation... this will be fun.
Thanks everyone!
Curt
----------------
79 928 5sp blk/silver #2064
02 Boxster 5sp blk/blk
It looks like it's going to be the drill and then try to twist the remainder of the screw off. I stopped by northern tool and picked up a impact driver.. whacked away a good ten minutes with no give whatsoever! Even went to the larger bit.. no give. Smaller bit actually bent counter clockwise slightly...
My car likes to give me a challenge. She occasionally freezes metal on metal and gives me a workout.. like the time I tried to replace the brake pads in grad school.. the pin was so frozen I couldn't drill it out and had to replace the caliper.. 30 years of heat and oxidation... this will be fun.
Thanks everyone!
Curt
----------------
79 928 5sp blk/silver #2064
02 Boxster 5sp blk/blk
06-01-2009, 10:52 PM
#23
Rennlist Member
Curt............ensure the impact driver is oriented to loosen...........no joke, it does operate both ways.
If you can get a good grip with the larger bit use the BFH to wack the driver; a little heat will also help.
If you can get a good grip with the larger bit use the BFH to wack the driver; a little heat will also help.
06-04-2009, 07:02 PM
#24
Instructor
Join Date: Jul 2008
Location: Cork, Ireland
Posts: 118
Likes: 0
Received 0 Likes
on
0 Posts
For what it's worth, echoing what other guys have already said - my FTO doesn't have any screws holding on the brake discs, only the calipers & the wheels pushed against them. Has never caused me any problems, and I have used 3 different sets of discs and calipers (not by wearing them out, upgrades!).
