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Old 08-24-2014, 11:45 AM   #1
BrittneyK
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Default Calliper Fitment Problem...

Started changing my pads and rotors last night… centric oem replacement rotors and hawk pads. Previously the rotors and pads were stock from subaru.
After putting the new rotor on and the new pads into the the bracket, I could not get the calliper to go over top of the new pads. Not even a little bit. Calliper appeared to be way too narrow.

I've changed the brakes before with subaru replacement stuff and never had this issue yet the centric/hawk products I ordered are direct oem replacements so I don't understand whats going on here.
Pistons are in, pads are tight to the bracket…
Only thing I can think of is that the calliper compressed or something? The old rotors and pads were super thin, on their last legs for sure.
Thoughts?
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Old 08-24-2014, 12:05 PM   #2
rexworx
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I assume you pushed the pistons all the way back into the calipers? Did you put extra backing plates/ shims on the pads?
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Old 08-24-2014, 12:11 PM   #3
billwong
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Open the brake MC reservior. Put the old pads against the pistons and try to retract the pistons to almost flush against the calipers. This can be done with a long tool to leverage against the old pads to avoid damage to the calipers while spreading the pads apart.

When installing the new pads, leave out the shims and use disk brake quiet or other similar anti squealing compound..
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Old 08-24-2014, 12:18 PM   #4
BrittneyK
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Quote:
Originally Posted by rexworx View Post
I assume you pushed the pistons all the way back into the calipers? Did you put extra backing plates/ shims on the pads?
Yeah backing plates are on, pistons are in.
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Old 08-24-2014, 12:19 PM   #5
BrittneyK
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Quote:
Originally Posted by billwong View Post
Open the brake MC reservior. Put the old pads against the pistons and try to retract the pistons to almost flush against the calipers. This can be done with a long tool to leverage against the old pads to avoid damage to the calipers while spreading the pads apart.

When installing the new pads, leave out the shims and use disk brake quiet or other similar anti squealing compound..
Alright I will give that a try… what type of tool would you suggest?
Will it make a difference though? I'm quite sure the pistons are in as far as they will go.
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Old 08-24-2014, 12:40 PM   #6
BrittneyK
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Actually you know what.. looking at them again the pistons aren't quite flush with the calliper. I just didn't think they were supposed to be forcibly pushed in like that?
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Old 08-24-2014, 01:31 PM   #7
billwong
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When everything is new. You have to retract the pistons all the way in. Sometimes you have to watch for over flow in the reservoir, as people tend to add brake fluid as the pads wear.

I find a foot long pry bar or flat screw driver is sufficient leverage. Be careful thought. It could slip. The other way is a C clamp against the brake pad and the outside of the caliper.

Canadian tire or part source will lend you a piston spreader with a credit card. I find its a hit or miss if they actually have the tool. If you need a pad spreader let me know. I am down by the CNE.
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Old 08-24-2014, 02:03 PM   #8
BrittneyK
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Okay that makes sense. Alright I'll give it a try with the tools you suggested and we'll see how it goes. I like the c-clamp idea, least risk of slippage I imagine.
Good to know that your close by if I need a spreader. I'm not far from the CNE either. Thanks for the advice! Will keep ya posted.
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Old 08-24-2014, 02:55 PM   #9
mitch808
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A really big c clamp and old brake pad is all you need. No need for specialty tools.

Sent from my Nexus 7 using NASIOC mobile app
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Old 08-25-2014, 10:00 AM   #10
BrittneyK
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Quote:
Originally Posted by mitch808 View Post
A really big c clamp and old brake pad is all you need. No need for specialty tools.

Sent from my Nexus 7 using NASIOC mobile app
C clamp did the trick. Thanks for the help guys!
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