Go Back   DodgeForum.com > Dodge SUVs > Dodge Durango > 1st Gen Durango
Sign in using an external account
Register Forgot Password?


1st Gen Durango 1998 - 2003 Durango's

Brake caliper pins

Reply
 
 
 
 
Thread Tools Search this Thread
  #1  
Old 05-06-2012, 11:19 PM
redfernclan redfernclan is offline
Rookie
1998 Dodge Durango
 
Join Date: Jan 2010
Vehicle: 98 Durango
Location: Tim buck too Oregon
Posts: 90
Default Brake caliper pins

Went to do a brake job and found out why they were dragging. Caliper pins had pulled all the threads out of the knuckle and caliper was cocked. Talked to the guy at Schwaby and he said about 90% of the brake jobs he does on that style are heli coiled. Had to special order a 9mm heli coil kit to fix. What the hell? 9mm? What an oddball size. $50 for the kit and an hour later and its all done and back on the road. Is it really that bad of a design? Are there really that many people out there that have had to fix stripped threads?
The only thing that make me nervous is that I usually lock tite heli coils in and this time I opted not to because of the heat build up. I figured it would just cook out anyway.
This ad is not displayed to registered and logged-in members.
Register your free account today and become a member on Dodge Forums!
Reply With Quote
  #2  
Old 05-07-2012, 12:50 AM
srch4me srch4me is offline
All Star
1998 Dodge Durango
 
Join Date: Apr 2011
Vehicle: '98 Durango SLT, 5.2L
Location: Richland, Washington
Posts: 962
camerageek
Send a message via Yahoo to srch4me Send a message via Skype™ to srch4me
Default

You should have used lock tite. I don't think the pins get hot enough to cook it. Even if they did why risk not putting any on? Mine are helicoil and are fine. The lock tight hadn't cooked of at all
Reply With Quote
  #3  
Old 05-07-2012, 01:28 AM
master tech's Avatar
master tech master tech is offline
Transmission God
Garage is empty, add now
 
Join Date: Apr 2007
Vehicle: Mits P/U , Dodge avenger(1996) .
Location: San Bruno ,Ca
Posts: 10,273
Leonard Pierce
Default

NO: 05-03-99
SUBJECT: Front Brake Caliper Mounting To Steering Knuckle Thread Repair
DATE: Apr. 23, 1999
OVERVIEW:
This bulletin involves repair of the threads on the steering knuckle or brake caliper mounting adapter that are used to install and retain the front brake caliper housing in its correct operating location.

DISCUSSION:
A Brake Knuckle Thread Repair Kit has been developed to repair stripped threads on the front brake caliper mounting attachment making it no longer necessary to replace the front steering knuckle/brake caliper mounting adapter when encountering stripped threads. The following information provides the repair procedure for using the Brake Knuckle Thread Repair Kit.

DIAGNOSIS:
Place the vehicle on an appropriate hoist.
Remove the front tire/wheel assembly.
Remove the brake caliper housing assembly by loosening the mounting bolts.
NOTE: IF HIGH TORQUE IS ENCOUNTERED DURING THE MOUNTING BOLT REMOVAL, IT IS LIKELY THAT THREAD DAMAGE WILL OCCUR OR HAS OCCURRED.

Remove the caliper housing assembly and hang the housing on the frame of the vehicle using an appropriate wire hanger.
NOTE: DO NOT ALLOW THE CALIPER HOUSING TO HANG BY ITSELF FROM THE BRAKE HOSE AS DAMAGE TO THE HOSE MAY RESULT.

If the vehicle has a bolt-on brake caliper mounting adapter, remove the adapter. If the brake caliper mounts directly to the steering knuckle, remove retainers on the wheel studs and remove the rotor.
Inspect the mounting bolts and knuckle threads for damage. If either is damaged, it is likely that damage to the other has occurred as well. If damage has occurred to the threads in the form of knicks, thread pulling, or cross-threading, perform the Repair Procedure.
PARTS REQUIRED:
Qty Part No. Description
AR (1) 05016155AA Kit, Brake Knuckle Thread Repair Includes:
23/64 Drill Bit
M9 X 1.25 Tap
Heli-Coil Installation Tool
Heli-Coil Tang Break-Off Rod
(25) M9 X 1.25 Stainless Steel Heli-Coils

REPAIR PROCEDURE:
Using the 23/64 in. drill, drill through the brake caliper mounting attachment hole keeping the drillperpendicular to the knuckle.
Using the M9 X 1.25 tap, tap the drilled hole ensuring to tap the hole entirely through.
Install a Heli-Coil insert onto the installation tool (tool number 3747-9). Be sure the tang is properly engaged into the driving contour of the tool.
Install the Heli-Coil into the drilled/tapped hole by rotating the tool and exerting slight pressure onto the tool/Heli-Coil and into the drilled/tapped hole. Continue to rotate the tool until the insert is located 1/4 to 1/2 turn below the steering knuckle surface.
Back the Heli-Coil installation tool out of the installed Heli-Coil. Then, remove the tang from the Heli-Coil by breaking the tang off using the tang break-off tool. Place the break-off tool into the assembled insert until it rests on the Heli-Coil tang. Holding the tool squarely, strike the tool sharply with a hammer.
If the vehicle has a bolt-on brake caliper mounting adapter, install the adapter. Refer to the appropriate Service Manual for information regarding proper brake caliper adapter mounting information. If the brake caliper mounts directly to the steering knuckle, install the rotor.
Install the caliper using new mounting bolts p/n 04886075AA in any location that had a Heli-Coil installed. Tighten the bolts to 30 - 35 N• m (22-26 ft. lbs.).
Install the tire/wheel assembly.
Lower the vehicle.
POLICY:
Reimbursable within the provisions of the warranty.

TIME ALLOWANCE:
Labor Op. No. Description Time
05-80-20-93 Brake Caliper Mounting Support Thread Repair, Left Side 0.4 Hrs.
05-80-20-93 Brake Caliper Mounting Support Thread Repair, Right Side 0.4 Hrs.


FAILURE CODE:
Code Description
XX Service Adjustment
__________________
Dodge Master Tech.
Reply With Quote
  #4  
Old 05-07-2012, 09:12 AM
shrpshtr325's Avatar
shrpshtr325 shrpshtr325 is offline
THE ULTI-MOD
Dodge Forum Moderator
2002 Dodge Durango
My Garage
 
Join Date: Jan 2007
Vehicle: 2013 Challenger R/T
Location: Toms River NJ
Posts: 19,006
Send a message via AIM to shrpshtr325
Default

Quote:
Originally Posted by redfernclan View Post
Talked to the guy at Schwaby and he said about 90% of the brake jobs he does on that style are heli coiled. Had to special order a 9mm heli coil kit to fix. What the hell? 9mm? What an oddball size. $50 for the kit and an hour later and its all done and back on the road. Is it really that bad of a design? Are there really that many people out there that have had to fix stripped threads?
this a two parts question, yes there are that many people that have stipped out the mounting bolts, however NO it is not really a bad design.

all threads are subject to being stipped or crossed if you are not carefull and/or load the bolt up before enough threads are caught. Stripped threads are in 99% of cases, caused by carelessness or laziness not design flaws.

this is because of how threads are designed to work, they are designed to deflect when loaded, this means that the threads (which are like little shelfs wrapped around the shaft of the bolt or the inside of the hole) actually bend whe you tighten them (or load them up, its the normal force on the bolt that causes deformation) as the bolt starts in one or two threads are bearing all of the load, as they deform more threads come in contact with each other and the load supported by each thread is reduced, by ALOT. if any of these threads are damaged it takes very little to damage everything and require thread replacement (helicoil). autozone also sells a larger self tapping bolt that will do the job too withouth putting a helicoil into it.
__________________


-Phillip's Law: Four-wheel-drive just means getting stuck in more inaccessible places.

bikes?
live in NJ?
REAR WIPER CLUB MEMBER #2

Quote:
altair: I need something that lets me stab people in the face over the internet
Reply With Quote
  #5  
Old 05-07-2012, 09:57 PM
redfernclan redfernclan is offline
Rookie
1998 Dodge Durango
 
Join Date: Jan 2010
Vehicle: 98 Durango
Location: Tim buck too Oregon
Posts: 90
Default

Good info, thanks. I tried the self tapping bolt and they were only about .010 larger than the original ones. I also noticed in the bulletin it did not say to apply lock tite. Maybe I guessed right. I just figured if the Heli coil backs out with the bolt when I take it apart next time, I will just put another new coil in with locktite this time. I think I have 10 of them left.
Reply With Quote
Old 05-07-2012, 09:57 PM
Reply
 
 
 




Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Join DodgeForum
Advertising

Featured Sponsors
Vendor Directory
Our Sponsors
All times are GMT -4. The time now is 02:43 AM.

Internet Brands, Inc.


Contact Details & Emails

Search Engine Friendly URLs by vBSEO 3.5.2