Caliper bolts removal
Thread Starter
Le Mans Master
Joined: Jan 2004
Posts: 9,488
Likes: 1,743
From: Knoxville Tn
Caliper bolts removal
Caliper bolts.
I'm trying to remove my rear calipers to install new ones (front already done with no problems) and I can not get the lower mounting bolt loose.
I'm using a air impact tool and have put some W-d40 on the bolt to no avail. does anyone have any suggestions?
I'm trying to remove my rear calipers to install new ones (front already done with no problems) and I can not get the lower mounting bolt loose.
I'm using a air impact tool and have put some W-d40 on the bolt to no avail. does anyone have any suggestions?
Melting Slicks
Joined: Jun 2006
Posts: 2,923
Likes: 1
From: Cleveland Tennessee
Come on down, my Z is in the shop getting a polished Maggie and other related items installed at the moment, so my garage is empty at the moment except for my two hoods and a few other things, I also work from home, websites and things, so I'm here 
I'll be leaving to go skiing in Maggie Valley Friday for the weekend, before or after is fine, I've got all the tools neccessary for that job and more 
I'll be leaving to go skiing in Maggie Valley Friday for the weekend, before or after is fine, I've got all the tools neccessary for that job and more
Pro
Joined: Aug 2007
Posts: 676
Likes: 2
From: Amherst VA
I used a regular open end wrench 13/16?? i believe and whacked it a few times with a 2 pound hammer. they broke free.
hard to get a long bar on it in the driveway with the car about 1 foot off the ground!!
hard to get a long bar on it in the driveway with the car about 1 foot off the ground!!
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Racer
Joined: Oct 2006
Posts: 368
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From: Poestenkill NY
If i remember correctly the point were the bolt goes in is a floating pin inside the caliper. On the outside it has 2 flat edges for a open end wrench. With the impact gun it spins the whole assembly. Hold the pin with a open end wrench and the hit it with the gun. It should come out.
Race Director
Joined: Jun 2005
Posts: 17,640
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From: Lenoir City TN
St. Jude Donor '08-'09-'10-'11
Hey Phanni, if you do not take up Ron's offer I would be more than happy to help you out. Got all the tools needed, did mine a couple months ago and had to use the impact. Just give me a shout.
Safety Car
Joined: Jul 2007
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From: Louisville Kentucky
I crapped on myself trying to bust those puppies loose. Then someone suggested a good thing to try. They used their jack and a 2x4 to turn those puppies loose.
And they didn't have to change their underwear.
And they didn't have to change their underwear.
Safety Car
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From: San Antonio Texas
Team Owner
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From: Knoxville, TN
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Nice Garage! 
Melting Slicks
Joined: Aug 2007
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From: Humble TX
St. Jude Donor '09-'10-'11-'12
If i remember correctly the point were the bolt goes in is a floating pin inside the caliper. On the outside it has 2 flat edges for a open end wrench. With the impact gun it spins the whole assembly. Hold the pin with a open end wrench and the hit it with the gun. It should come out.
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A breaker bar should do the trick. 
Race Director
Joined: Mar 2007
Posts: 18,308
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From: Marlton. Increasing performance one speeding ticket at a time! NJ
The caliper mounting bracket bolts are signifigantly harder, as I believe they are torqued to 125 ftlbs and have red loctite. One suggestion someone had was to jack the car up and get a long breaker bar on the offending bolt, and then lower the car, using the weight of the car against the bar to break the bolt free.
But I still go back to the original point. If your just replacing the caliper, then no need to remove the caliper bracket.
Safety Car
Joined: Jul 2007
Posts: 4,333
Likes: 6
From: Louisville Kentucky
By the way, I forgot to mention that NOTHING loosen stuck bolts and such like PB Blaster. I've had that stuff loosen everything I put it on and then some. Plus, I like their slogan:
"Don't bust your knuckles, bust your nuts with PB Blaster!"
I love that slogan!
"Don't bust your knuckles, bust your nuts with PB Blaster!"
I love that slogan!
Pro
Joined: May 2007
Posts: 609
Likes: 8
From: Round Rock TX
If all he wants to do is replace the caliper, you don't need to remove the caliper mounting braket at all. To just remove the caliper, take out the caliper slide bolts as taz03 suggested. You need to put a wrench on the flats and turn. Not to hard.
The caliper mounting bracket bolts are signifigantly harder, as I believe they are torqued to 125 ftlbs and have red loctite. One suggestion someone had was to jack the car up and get a long breaker bar on the offending bolt, and then lower the car, using the weight of the car against the bar to break the bolt free.
But I still go back to the original point. If your just replacing the caliper, then no need to remove the caliper bracket.
The caliper mounting bracket bolts are signifigantly harder, as I believe they are torqued to 125 ftlbs and have red loctite. One suggestion someone had was to jack the car up and get a long breaker bar on the offending bolt, and then lower the car, using the weight of the car against the bar to break the bolt free.
But I still go back to the original point. If your just replacing the caliper, then no need to remove the caliper bracket.