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Front brake slide pin rubber bushing Jump to Latest #5434507 05/20/20 06:57 PM
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davlac89 Offline OP
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Hi,

I just replaced my front brakes and replaced the rubber bushing on the pins. I have a 2014 Mazda 3, only the bottom pin has a bushing, I lubed everything with silicone grease (Sil-Glyde) like it should be done but the pin with the bushing doesn't seem to move freely like the top one. It feels really tight and wont spring back when pushed. Is that normal for a brand new bushing?

Thanks

Re: Front brake slide pin rubber bushing Jump to Latest [Re: davlac89] #5434511 05/20/20 07:03 PM
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IMSA_Racing_Fan Offline
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IDK are the old ones destroyed or thrown away? I would put them back on.

Re: Front brake slide pin rubber bushing Jump to Latest [Re: davlac89] #5434534 05/20/20 07:30 PM
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The Critic Offline
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The bushing may be too large or is swollen. You can try cutting off a bit of the bushing (on one side) and this will help.


2011 Toyota Prius 1.8L - 207K - Valvoline Premium Blue Restore 10W-30
2007 Honda Accord 2.4L - 146K - Valvoline Premium Blue Restore 10W-30
Re: Front brake slide pin rubber bushing Jump to Latest [Re: davlac89] #5434554 05/20/20 07:55 PM
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Rand Offline
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might have air pocket. or too much grease below it.


2019 Jeep Cherokee Trailhawk 2.0T
2020 Hyundai Elantra "Value Edition"
Re: Front brake slide pin rubber bushing Jump to Latest [Re: davlac89] #5434593 05/20/20 08:34 PM
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IMSA_Racing_Fan Offline
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It's just to reduce noise, would rather have it off than stuck and dragging the pads.

Re: Front brake slide pin rubber bushing Jump to Latest [Re: The Critic] #5434598 05/20/20 08:37 PM
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doitmyself Offline
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Originally Posted by The Critic
The bushing may be too large or is swollen. You can try cutting off a bit of the bushing (on one side) and this will help.


When I replaced the single pin bushings on my previous Caravan, I remember that one aftermarket set from a certain store (forget) fit better (looser) than the aftermarket bushings from another store. I think it was NAPA ones that fit better. I got lucky. It will be hard to buy different sourced ones, hoping to get a better fit.

I like the idea of shaving some of the rubber off. Too much grease, as mentioned, is also a possibility. Good luck.

Re: Front brake slide pin rubber bushing Jump to Latest [Re: davlac89] #5434640 05/20/20 09:38 PM
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Donald Offline
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Go lightly on the grease. I used a vise to push the pin all the way in and that pushes any air out and the the pin moves pretty freely.


2015 Ford F-250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Front brake slide pin rubber bushing Jump to Latest [Re: davlac89] #5434806 05/21/20 06:42 AM
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mfewtrail Offline
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If the pin came out easily when first removed, the bushing shouldn't be swollen. If that's the case you've most likely just put too much grease and are now trying to effectively compress that while pushing the pin in. Take a q-tip and swab out some of the grease out of the bore and you should be good to go.

Last edited by mfewtrail; 05/21/20 06:43 AM.
Re: Front brake slide pin rubber bushing Jump to Latest [Re: davlac89] #5434822 05/21/20 07:03 AM
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kschachn Offline
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Rubber bushings don't swell as much as the metal bore rusts. I've seen this before, generally you need to use a round wire brush and clean out the socket for the bushing.


1994 BMW 530i, 252K
1996 Honda Accord, 288K
1999 Toyota Sienna, 434K
2000 Toyota ECHO, 284K
Re: Front brake slide pin rubber bushing Jump to Latest [Re: davlac89] #5434882 05/21/20 08:21 AM
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incognito_2u Offline
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Had this happen to me in the 2006 Corolla. Either too much lube on the pin, or an air pocket built up when you pushed the pin back in. Get yourself a small pick or screwdriver. Pull back to the flexible “accordion like” slide pin boot on the end of Caliper bracket as you push the pin all the way in and in effect, your burping the air out from behind that seal. Release the pick and spin the caliper pin in its bore to evenly distribute all the grease.
Kinda hard to explain, but easier to show so I hope you understand what I mean...
Best of luck.


2006 Jeep Commander 3.7 V6 -116k (M1EP5W30/XG3600)
2006 Toyota Corolla 1.8 VVTi -88k (M1EP5W30/XG3600)
1999 Toyota Corolla 1.8 -92k (PUP5W30/XG4386)
1998 Toyota Corolla 1.8 -68k (VME5W30/XG3600)
Re: Front brake slide pin rubber bushing Jump to Latest [Re: davlac89] #5434948 05/21/20 09:44 AM
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hallstevenson Offline
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Remove the slide pin and clean off most of the Sil-Glyde. Get something (rolled-up paper towel, Q-Tips, etc) and clean out the slide pin's mating bore hole and hit it with brake cleaner when you've cleaned it out as best you can. Re-apply the Sil-Glyde but only use a small amount - a 'film' coating is adequate. Then push/pull it in and out and pull on the rubber boot to release any trapped air.

Re: Front brake slide pin rubber bushing Jump to Latest [Re: davlac89] #5435525 05/21/20 11:23 PM
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nthach Offline
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Clean the bore with paper towels wrapped around a screwdriver or a soft nylon/steel/brass bore brush. Use a little brake cleaner to break up the old lube and to clean it up finally.

I like Toyota's Rubber Grease or Dow 111 - a thin smear is all you need.

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