[DeTomaso] Stoptech rotor scrape

[Mike Drew]

John,

Where on earth did that bizarre-looking thing come from?  It appears to be some sort of spacer that somebody installed for some reason? For sure it doesn't belong there (look at the exploded parts diagram). I think you found and fixed your problem!

Mike

Sent from my iPhone

On Aug 2, 2017, at 9:33, audionut at hushmail.com wrote:

> Thanks for the reply, Mike--
> 
> The caliper shim is not in, so I know that isn't it.  As for the mounting surface of the hub, I never saw it because the local machine shop did the rotor swap for me--  they pressed out the wheel studs, swapped rotors and pressed the wheel studs back in.  There is no indication of any gap at all between the hub and the new rotor.  They pressed them together really good.
> 
> I just removed the rotor again and had a look at the inner bearing race and it is seated exactly like the other hub so, if it's not right, they are both not right.
> 
> I put the rotor back on leaving out the washer-thing that's in the attached photo and there is no scraping now.  Is it okay to not install this thing?  When I asked the guy at the shop where this washer-thing goes, he said he'd never seen one and didn't know but it appeared to him that the "up" surface shown in the photo goes against the seal between the bearing and the seal, so that's what I did and got the scrape. 
> 
> 
> 
> 
> Sent using Hushmail
> 
> 
> On August 1, 2017 at 7:17 PM, "Mike Drew" <MikeLDrew at aol.com> wrote:
> Yikes!
> 
> Okay, that's really weird. I would guess you didn't clean up the mounting surface on the front of the hub, and corrosion buildup is preventing the rotor from seating on the hub properly. Either that or the inner bearing race isn't seated properly in the hub, so the hub is sticking out slightly. 
> 
> Or, you left the stock spacers in place which offset the caliper inboard?
> 
> Don't start filing anything yet. Take it all apart and check everything carefully. I'm betting this is a minor installation error problem, easily resolved. 
> 
> Let us know what you find out!
> 
> Mike
> 
> Sent from my iPad
> 
> > On Aug 1, 2017, at 18:54, audionut at hushmail.com wrote:
> > 
> > So much for trying describe this without photos! Sorry guys--
> > 
> > Okay here's 3 angles of the little rotor scratchers on the calipers that appear to be specifically designed to do just that. 
> > 
> > (It appears also that the rotors are not evenly centered inside the calipers)
> > 
> > Thanks for the help.
> > 
> > 
> > 
> > 
> > Sent using Hushmail
> > <IMG_3387.JPG>
> > <IMG_3388.JPG>
> > <IMG_3390.JPG>
> <PanteraBearingThing - 1.jpg>
-------------- next part --------------
   John,

   Where on earth did that bizarre-looking thing come from?  It appears to
   be some sort of spacer that somebody installed for some reason? For
   sure it doesn't belong there (look at the exploded parts diagram). I
   think you found and fixed your problem!

   Mike
   Sent from my iPhone

   On Aug 2, 2017, at 9:33, [1]audionut at hushmail.com wrote:

   Thanks for the reply, Mike--
   The caliper shim is not in, so I know that isn't it.  As for the
   mounting surface of the hub, I never saw it because the local machine
   shop did the rotor swap for me--  they pressed out the wheel studs,
   swapped rotors and pressed the wheel studs back in.  There is no
   indication of any gap at all between the hub and the new rotor.  They
   pressed them together really good.
   I just removed the rotor again and had a look at the inner bearing race
   and it is seated exactly like the other hub so, if it's not right, they
   are both not right.
   I put the rotor back on leaving out the washer-thing that's in the
   attached photo and there is no scraping now.  Is it okay to not install
   this thing?  When I asked the guy at the shop where this washer-thing
   goes, he said he'd never seen one and didn't know but it appeared to
   him that the "up" surface shown in the photo goes against the seal
   between the bearing and the seal, so that's what I did and got the
   scrape.
   Sent using Hushmail
   On August 1, 2017 at 7:17 PM, "Mike Drew" <[2]MikeLDrew at aol.com> wrote:

     Yikes!
     Okay, that's really weird. I would guess you didn't clean up the
     mounting surface on the front of the hub, and corrosion buildup is
     preventing the rotor from seating on the hub properly. Either that
     or the inner bearing race isn't seated properly in the hub, so the
     hub is sticking out slightly.
     Or, you left the stock spacers in place which offset the caliper
     inboard?
     Don't start filing anything yet. Take it all apart and check
     everything carefully. I'm betting this is a minor installation error
     problem, easily resolved.
     Let us know what you find out!
     Mike
     Sent from my iPad
     > On Aug 1, 2017, at 18:54, [3]audionut at hushmail.com wrote:
     >
     > So much for trying describe this without photos! Sorry guys--
     >
     > Okay here's 3 angles of the little rotor scratchers on the
     calipers that appear to be specifically designed to do just that.
     >
     > (It appears also that the rotors are not evenly centered inside
     the calipers)
     >
     > Thanks for the help.
     >
     >
     >
     >
     > Sent using Hushmail
     > <IMG_3387.JPG>
     > <IMG_3388.JPG>
     > <IMG_3390.JPG>

   <PanteraBearingThing - 1.jpg>

References

   1. mailto:audionut at hushmail.com
   2. mailto:MikeLDrew at aol.com
   3. mailto:audionut at hushmail.com