|
Author
|
Topic: Disc brake bolts ... why the holes?
|
Fastback68
Gearhead Posts: 1880
From: Sucat, Paranaque, Philippines
Registered: Jul 99
|
posted 03-05-2003 07:23 AM
   
On 68-73 disc brakes, the calipers are held to the spindles by two fat bolts with multiple holes in their heads. Are the holes for cooling?
Thanks!
Simon
IP: Logged |
68 S-code GT
Gearhead Posts: 1175
From: Sayreville, NJ, US
Registered: Mar 2000
|
posted 03-05-2003 07:35 AM
I noticed this also and didn��t know why! Some of the cars I��ve had, the PO ran wire through the holes and around the spindles. I think they did this to prevent the bolts from backing out. I have never done this myself and haven��t had any problems. I did use a thread lock sealer though!
IP: Logged |
Moneymaker
Administrator Posts: 19964
From: Lyons, IL, USA
Registered: May 99
|
posted 03-05-2003 10:29 AM
The holes were put there to keep the bolts from siezing up.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA National Record Holder '00,'01,'02,&'03
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Professional Manwhore
The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
IP: Logged |
wvcat
Gearhead Posts: 225
From: New Cumberland,WV
Registered: May 2001
|
posted 03-05-2003 05:09 PM
Actually the holes are there for tie wire to prevent the bolts from vibrating out.
John
wvcat------------------
Thanks
John
(wvcat)
http://www.geocities.com/wvxr7cougar/wvcat_01.html?989286238390
70 XR7 Restomod...wvcat
66 coupe project...she needs a name!!!
IP: Logged |
Moneymaker
Administrator Posts: 19964
From: Lyons, IL, USA
Registered: May 99
|
posted 03-05-2003 05:13 PM
You would think that, but it's not the case. FoMoCo never saftey wired their caliper bolts or any other bolts in passenger cars.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA National Record Holder '00,'01,'02,&'03
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Professional Manwhore
The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
IP: Logged |
mustang68mustangs
Gearhead Posts: 293
From: pittsburgh,pa.usa
Registered: Jul 2001
|
posted 03-06-2003 07:00 AM
Hey Alex,how does the holes keep the bolts from seizing up? I also thought they were for safety wire.My 68 had wire thru them that looked very old and untouched It wrapped around the spindle. So I replaced the wire when I rebuilt everything. Just trying to learn something new.
Bob
IP: Logged |
wvcat
Gearhead Posts: 225
From: New Cumberland,WV
Registered: May 2001
|
posted 03-06-2003 06:27 PM
My 70 also had wire in them when I got it. I can't understand how they could keep the bolts from siezing up.
John
wvcat------------------
Thanks
John
(wvcat)
http://www.geocities.com/wvxr7cougar/wvcat_01.html?989286238390
70 XR7 Restomod...wvcat
66 coupe project...she needs a name!!!
IP: Logged |
Moneymaker
Administrator Posts: 19964
From: Lyons, IL, USA
Registered: May 99
|
posted 03-06-2003 08:15 PM
MM also had holes in it's original disc brake caliper bolts. No saftey wires though. 
IN the early 70's I asked a FoMoCo tech why the holes and no saftey wires.
He told me that the holes were there so the bolts could breathe. 
I looked at him and said, yeah...OK.Sure...
A few years later I left GSD and went to work at a FoMoCo dealer and after pulling several hundred front wheels off, have yet to see any saftey wired caliper bolts. I eventually took what the old time FoMoCo tech told me a the truth.
------------------
Alex Denysenko
Co-Administrator and Moderator
NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA National Record Holder '00,'01,'02,&'03
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Professional Manwhore
The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com [This message has been edited by Moneymaker (edited 03-06-2003).]
IP: Logged |
Mustangsandmore Forums
UBBFriend: Email This Page to Someone! 
