Topic Sponsor
2004 - 2008 Ford F150 General discussion on the 2004 - 2008 Ford F150 truck.

2WD Rotor Install Question

Thread Tools
 
Search this Thread
 
Old 06-10-2019, 11:14 PM
  #1  
Senior Member
Thread Starter
 
Mulestang's Avatar
 
Join Date: Jun 2014
Location: Jacksonville, FL
Posts: 1,290
Received 137 Likes on 116 Posts

Default 2WD Rotor Install Question

Looking at the 2WD rotor selections on RockAuto, I see that some brands (Durago) instruct you to torque to 295 lb/ft, turn the rotor counterclockwise 5 times, and recheck the torque, or failure may occur. Is this critical to all brands or just Duragos? What is the 5 turns doing? Have you ever heard this procedure required of other brands?
Old 06-11-2019, 08:16 AM
  #2  
Senior Member
 
CKsBAT's Avatar
 
Join Date: May 2012
Location: Cape Charles Virginia
Posts: 1,226
Received 316 Likes on 228 Posts

Default

I saw this, but I can't imagine it does much other than ensuring the hub spins and check for tightness. I just got close to the 295 and buttoned everything up. No issues in the subsequent 62k miles.

Note, I'm not recommending this approach, just what I did. Manufacturers don't just make up torque specs just for fun, but many are just CYA on their part.
Old 06-11-2019, 08:20 AM
  #3  
Super Moderator

iTrader: (1)
 
djfllmn's Avatar
 
Join Date: Jun 2012
Location: PA
Posts: 21,318
Received 4,142 Likes on 2,841 Posts

Default

Originally Posted by Mulestang
Looking at the 2WD rotor selections on RockAuto, I see that some brands (Durago) instruct you to torque to 295 lb/ft, turn the rotor counterclockwise 5 times, and recheck the torque, or failure may occur. Is this critical to all brands or just Duragos? What is the 5 turns doing? Have you ever heard this procedure required of other brands?
it just makes sure that the rotor is seated all the way and then torqued properly
Old 06-11-2019, 08:30 AM
  #4  
Senior Member
 
nrivera04's Avatar
 
Join Date: Apr 2015
Location: MS Gulf Coast
Posts: 1,794
Received 268 Likes on 247 Posts
Default

My torque wrench only went up to 250 so that’s what I torqued mine to... I didn’t spin anything either. I guess that’s to ensure the rotor isn’t binding up or rubbing something?
Old 06-12-2019, 11:39 AM
  #5  
Monks
 
650NutKase's Avatar
 
Join Date: Jan 2016
Location: Chuco Town, TX
Posts: 1,850
Received 248 Likes on 221 Posts
Default

295 is to ensure that the preload on the bearing is set properly. This torque spec is important for bearing life, but not so much for safety IMO. I bought the Tekton 3/4" tq wrench just for this job...
Old 06-12-2019, 06:23 PM
  #6  
Senior Member
 
ShirBlackspots's Avatar
 
Join Date: Apr 2019
Location: Wichita Falls, TX
Posts: 1,789
Received 277 Likes on 245 Posts
Default

Make sure you have a long pipe to help with torquing it. I'm not sure how its possible for someone to torque it down that much, even with a 300ft-lbs wrench, unless you are super strong or weigh a lot.
Old 06-12-2019, 08:38 PM
  #7  
Senior Member
Thread Starter
 
Mulestang's Avatar
 
Join Date: Jun 2014
Location: Jacksonville, FL
Posts: 1,290
Received 137 Likes on 116 Posts

Default

Well, Bosch rotors replaced with warrantied units. Old Wagner TQ Semi-Metallics still had lots of material left, but I installed new Wagner TQ ceramics. Now lets see how long these bearings last.
Old 06-13-2019, 12:53 PM
  #8  
Monks
 
650NutKase's Avatar
 
Join Date: Jan 2016
Location: Chuco Town, TX
Posts: 1,850
Received 248 Likes on 221 Posts
Default

Originally Posted by ShirBlackspots
Make sure you have a long pipe to help with torquing it. I'm not sure how its possible for someone to torque it down that much, even with a 300ft-lbs wrench, unless you are super strong or weigh a lot.
Actually it's not bad at all. The 3/4" tq wrench is heavier and much longer than a 1/2".
Old 06-13-2019, 01:18 PM
  #9  
Senior Member
 
ShirBlackspots's Avatar
 
Join Date: Apr 2019
Location: Wichita Falls, TX
Posts: 1,789
Received 277 Likes on 245 Posts
Default

Originally Posted by 650NutKase
Actually it's not bad at all. The 3/4" tq wrench is heavier and much longer than a 1/2".
I need to get me a 3/4" torque wrench then, I already have a 150ft-lb 1/2" and a 1/4" inch pound wrench (I think it goes to a max of 50ft-lbs)
Old 06-13-2019, 03:46 PM
  #10  
Monks
 
650NutKase's Avatar
 
Join Date: Jan 2016
Location: Chuco Town, TX
Posts: 1,850
Received 248 Likes on 221 Posts
Default

Originally Posted by ShirBlackspots
I need to get me a 3/4" torque wrench then, I already have a 150ft-lb 1/2" and a 1/4" inch pound wrench (I think it goes to a max of 50ft-lbs)
yeah I think I paid 90 bucks on Amazon. No one here rents a tq wrench that goes to 300 ft/lbs.


Quick Reply: 2WD Rotor Install Question



All times are GMT -4. The time now is 07:29 PM.