Check out Harbor Freight....(breaker bars and electric impact wrenches)(and large amounts of P B Blaster).
Replacing rear rotor question
Thread Starter
8th Gear
Joined: Aug 2012
Posts: 8
Likes: 0
From: Rochester Indiana
Replacing rear rotor question
I bought four new rotors and I started to put them on today and on the first wheel I started on (right rear) the bottom bolt on the caliper bracket is not wanting to come out, anyone had this same issue? Thought about pulling out the heat and trying to warm it up to see if that would work. Any words of advice are welcomed.
Le Mans Master
Joined: May 2007
Posts: 5,393
Likes: 17
From: Belleville Mich.
If by " heat", you are meaning a butane torch, you should be ok.
There is red loc tite on those threads.
Along with red loc tite & the more than 100 lb ft, makes them very hard to break loose.
I suggest, if you are going to be doing that type of work on your car to purchase a premium impact gun to go along with an air compressor.
Makes short work of breaking such bolts loose..an easy task. (with out the use of heat)
There is red loc tite on those threads.
Along with red loc tite & the more than 100 lb ft, makes them very hard to break loose.
I suggest, if you are going to be doing that type of work on your car to purchase a premium impact gun to go along with an air compressor.
Makes short work of breaking such bolts loose..an easy task. (with out the use of heat)
Thread Starter
8th Gear
Joined: Aug 2012
Posts: 8
Likes: 0
From: Rochester Indiana
Sorry, I did mean a butane torch not a cutting torch or anything like that, I am using my impact and it still would budge, so I'll try that and see if I'm successful. Thanks for your reply.
Melting Slicks
Joined: Jul 2006
Posts: 2,332
Likes: 31
From: Silver Spring MD
I used brute force, a breaker bar and six point socket and about 5' of pipe
Adding some heat on the bolts from a propane torch would have helped but I used elbow grease and a long extension (5' of pipe over the breaker bar) to crack the 125 ft lb locktited bolts loose. Bent the breaker bar in the process. When I reinstalled the bolts first cleaned the bolt threads of old locktite, then added new red locktite and retorqued to 125 ft lbs. This straightened out the breaker bar.
A LOT OF FUN
A LOT OF FUN
Le Mans Master
Joined: Mar 2004
Posts: 8,700
Likes: 298
From: Ft. Lauderdale Fl
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Race Director
Joined: May 2012
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From: Phoenix area, AZ
Adding some heat on the bolts from a propane torch would have helped but I used elbow grease and a long extension (5' of pipe over the breaker bar) to crack the 125 ft lb locktited bolts loose. Bent the breaker bar in the process. When I reinstalled the bolts first cleaned the bolt threads of old locktite, then added new red locktite and retorqued to 125 ft lbs. This straightened out the breaker bar.
A LOT OF FUN
A LOT OF FUN
Melting Slicks
Joined: Jul 2006
Posts: 2,332
Likes: 31
From: Silver Spring MD
there were a total of 2 of these bolts in over 20 GM dealships in Wash DC area
Mine still good after 15 years.
If you want to pay the vette tax I am sure your dealer will supply them to you.
Burning Brakes
Joined: Jul 2010
Posts: 835
Likes: 4
From: Los Angeles CA
The maximum torque those 15mm bolts can see without yielding should be around 150 ft-lbs. GM only recommends replacing those because they come with loc-tite pre-applied.
Le Mans Master
Joined: Nov 2005
Posts: 5,403
Likes: 31
From: Allentown PA & Elk Twp NJ HPDE Addict
Since I track my car I go through alot of rotors. I've had mine on and off well over a dozen times. No problem using the bolts over again and I use Locktite blue.
Burning Brakes
Joined: Oct 2009
Posts: 906
Likes: 2
From: Cornwall ON
I bought four new rotors and I started to put them on today and on the first wheel I started on (right rear) the bottom bolt on the caliper bracket is not wanting to come out, anyone had this same issue? Thought about pulling out the heat and trying to warm it up to see if that would work. Any words of advice are welcomed.
Once you're securely on jackstands - put your wrench + breaker on the bolt. Put your jack under neath the lever of the wrench / Breaker bar. Jack it up.
It'll flex, then crack the nut loose.
Sounds crazy. Worked for me.
Racer
Joined: Nov 2012
Posts: 376
Likes: 21
From: Coos Bay Oregon
I use an old shade tree trick. I go to the grocery store and in the spice rack I get a bottle of pepermint oil. I put a few drops of that on really tight bolts and the next day they come right off. YOu still have to put 125 lbs of torque on the bolt, nut, whatever to get it off though.
Intermediate
Joined: Sep 2001
Posts: 26
Likes: 0
From: Albquqerque NM
I got mine loose by putting and impact driver socket (six sides vs 12 for regular socket) on a 1/2 drive ratchet wrench (12 inch), and banging on the wrench handle with a small sledge hammer.
Pro
Joined: Feb 2011
Posts: 565
Likes: 0
From: Broussard Louisiana
I'm glad I saw this post...I just changed mine a week ago and when i took those bolts out i did it with a Boxed end Hand wrench with no problem and then installed them back in with the same....So i need to get under there and retighten them i didnt know about the 125# torque...or If im breaking loose bolts with locktight and 125# torque with just my hand....well then i need to get laid!