Welcome to the North American Subaru Impreza Owners Club Monday September 15, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Click here to visit TireRack
Brakes & Suspension Forum sponsored by The Tire Rack

Losing traction? Need new tires?
Click here to visit the NASIOC Upgrade Garage...
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Brakes, Steering & Suspension

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 01-28-2011, 06:08 PM   #1
ezil71
Scooby Specialist
 
Member#: 207118
Join Date: Mar 2009
Chapter/Region: NWIC
Location: West Linn, OR
Vehicle:
2003 Wrx Wagon

Default caliper grease - guide pins and lock pins

So one of my pins had the rubber rip a bit and I picked up a replacement at autozone (duralast). It seems to be a bit thicker, doesn't slide as well. Even the stock pins don't have a lot of space for grease as far as I can tell.

Does subaru use some sort of unique grease on those pins? The usual brake/caliper grease I've used is a bit thick. I'd hate to have a pin lock up on me.

Why the heck does one pin have the rubber on it and the other doesn't in the first place?

I couldn't find new boots for the pins that worked, and Subaru seemed to only have them as a pricey kit. The Napa boots that claimed to be for the wrx were too short and pop off.

Is OEM the only way to go for those pins?

Thanks
* Registered users of the site do not see these ads.
ezil71 is offline   Reply With Quote
Old 01-28-2011, 07:41 PM   #2
romanlynch
Scooby Specialist
 
Member#: 126684
Join Date: Sep 2006
Chapter/Region: MWSOC
Location: Lima, OH
Vehicle:
02 wrx
PLATINUM silver baby

Default

i havent had any issues using an aftermarket hardware kit for any car/truck before, and that should come with the pins, boots etc. but i know ppl that are diehard for OE stuff so its ur choice. as for the grease ill lube the pin, work it in an out to make sure it slides ok, if i have to ill dap some grease at the opening then put the pin in. it doesnt have to be an enormous amount, u should be using synthetic caliper grease so it stays pretty well. whenever you do a break job u should reapply the grease to the pins.

the little rubber booty thing i think is so the caliper doesnt "wiggle" under the force of braking an cause a click or knock sound. im not 100% on that tho
romanlynch is offline   Reply With Quote
Old 01-28-2011, 08:50 PM   #3
ezil71
Scooby Specialist
 
Member#: 207118
Join Date: Mar 2009
Chapter/Region: NWIC
Location: West Linn, OR
Vehicle:
2003 Wrx Wagon

Default

That's just it though, the aftermarket pin I have is clearly thicker, so even when greased properly it doesn't slide easily, although it does move with some effort. I'm guessing the duralast part isn't a metric part, and just off by a hair. None of the parts I found include the caliper boots, only the caliper rebuild kit from subaru did, and the ones Napa sold that were the wrong size.

Just wondering if anyone else has had that problem, or found another aftermarket part that does fit right.
ezil71 is offline   Reply With Quote
Old 02-03-2011, 09:46 PM   #4
OrbitalEllipses
Scooby Guru
 
Member#: 178811
Join Date: Apr 2008
Chapter/Region: MAIC
Location: MoCo
Vehicle:
2013 WRB BRZ
:banana:

Default

I replaced my rear caliper slide and lock pins with a generic kit from Advance Auto not very long ago; I too noticed they didn't slide as well.

The kit included dust boots and the small rubber bit that goes on the end of the lock pin. What I found was that the generic replacement rubber bit was actually rather large, and that the Subaru one was smaller. Luckily, I had a Subaru seal rebuild kit on hand and used the small rubber bit it provided. I'm talking about part a5 in this picture:



FWIW, the generic guide/lock pin kit I used was this one. It says two required, you only need one.
OrbitalEllipses is offline   Reply With Quote
Old 02-07-2011, 04:00 PM   #5
Wade-O
Scooby Newbie
 
Member#: 31190
Join Date: Dec 2002
Chapter/Region: NWIC
Location: Southern Orygun
Vehicle:
2002 WRX Sportwagon
Alpine White

Default

I'm having problems with this same part, after installing an aftermarket H6 upgrade bracket (RacingBrake). The slide pin builds up pressure like a syringe, and won't push down very far into the hole before the pressure is so high that it is effectively bottomed out. LIkewise, if I pull it out a bit, it builds up a vacuum and pulls the pin back into the hole. I was barely able to get it compressed enough to slide over the pads when reattaching the caliper, but now I think the outboard pad is dragging because of it. Is this "syringe" type behavior normal, or should the pin move freely in and out? The only way I can get the pin to slide freely in/out is if I remove that rubber boot from the bottom of the pin.
Wade-O is offline   Reply With Quote
Old 02-08-2011, 12:15 PM   #6
romanlynch
Scooby Specialist
 
Member#: 126684
Join Date: Sep 2006
Chapter/Region: MWSOC
Location: Lima, OH
Vehicle:
02 wrx
PLATINUM silver baby

Default

how much are you moving the pin in and out, when you hit the brakes theres not much movement of the caliper. ive had the same thing happen on my car an many others after i grease up the pins. it might have some resistance when u go to push it all the way in an then pull it almost all the way out. you definately need the boot on there so the water etc doesnt get into the caliper bracket, thatll rust it together real quick.
romanlynch is offline   Reply With Quote
Old 02-08-2011, 04:31 PM   #7
Wade-O
Scooby Newbie
 
Member#: 31190
Join Date: Dec 2002
Chapter/Region: NWIC
Location: Southern Orygun
Vehicle:
2002 WRX Sportwagon
Alpine White

Default

Quote:
Originally Posted by romanlynch View Post
how much are you moving the pin in and out, when you hit the brakes theres not much movement of the caliper. ive had the same thing happen on my car an many others after i grease up the pins. it might have some resistance when u go to push it all the way in an then pull it almost all the way out. you definately need the boot on there so the water etc doesnt get into the caliper bracket, thatll rust it together real quick.
I'm not talking about the accordian-like boot at the top of the pin, but the small rubber bushing at the bottom of the guide pin. I actually couldn't get it to compress enough to get the caliper over the pads until I scooped some of the grease out. Even then it was super tight. I went ahead and ordered the seal kit last night, we'll see how it goes with new bushings.
Wade-O is offline   Reply With Quote
Old 02-14-2011, 02:33 PM   #8
Wade-O
Scooby Newbie
 
Member#: 31190
Join Date: Dec 2002
Chapter/Region: NWIC
Location: Southern Orygun
Vehicle:
2002 WRX Sportwagon
Alpine White

Default

Got the new rubber bushings installed this weekend, and it made all the difference. The guide pins now slide in/out effortlessly. When I put the new bushings next to the old one, it was obvious there was some deformation in the old ones. They were longer than the new ones by about 1/8" or so. Pretty dramatic size difference, I thought for a minute they weren't even the right part.

Part a5 on the diagram above for anyone who's wondering. I had to buy the whole kit (#3 in the diagram) just to get those little buggers.
Wade-O is offline   Reply With Quote
Old 04-27-2011, 10:59 PM   #9
2:43AM
Scooby Specialist
 
Member#: 190273
Join Date: Sep 2008
Chapter/Region: MWSOC
Location: NW-IN
Vehicle:
05 WRX evoIII-16G
WRB

Default

^^^
I'm bumping this one out of a two-plus month hiatus because of the exact problem I am experiencing now! I cannot get the lower caliper pin to go into the housing. The pressure is far too great, as if it feels like the bolt is bottoming out. Wade-O, you hit it on the head.

I think the rubber gasket at the end of the pin is either deformed or swollen enough to not allow proper insertion, even with minimal grease.

Where did you get the rebuild kit? Dealer?
2:43AM is offline   Reply With Quote
Old 04-27-2011, 11:12 PM   #10
2:43AM
Scooby Specialist
 
Member#: 190273
Join Date: Sep 2008
Chapter/Region: MWSOC
Location: NW-IN
Vehicle:
05 WRX evoIII-16G
WRB

Default

Something I found of great interest regarding the rubber bushings:

Get a slider pin bushing kit from dealer and make sure u use sil-glide (silicone based lube), u can get it from Canadian tires (green bottle), its about 5.99 i think. Permatex silicone lube is OK to use.

Any petroleum-based lub will swell the rubber bushings and the boots.

Huh. Seems reasonable. Well, I wish I would have know that a long time ago. Live and learn, I guess.

EDIT: Best choice/alternative to NIGLUBE RX-2 (per subie service manual) is Syl-Glyde. The cheaper Permatex lube (green bottle) may not be appropriate.

Last edited by 2:43AM; 04-27-2011 at 11:32 PM.
2:43AM is offline   Reply With Quote
Old 04-27-2011, 11:38 PM   #11
Wade-O
Scooby Newbie
 
Member#: 31190
Join Date: Dec 2002
Chapter/Region: NWIC
Location: Southern Orygun
Vehicle:
2002 WRX Sportwagon
Alpine White

Default

Quote:
Originally Posted by 2:43AM View Post
^^^
I'm bumping this one out of a two-plus month hiatus because of the exact problem I am experiencing now! I cannot get the lower caliper pin to go into the housing. The pressure is far too great, as if it feels like the bolt is bottoming out. Wade-O, you hit it on the head.

I think the rubber gasket at the end of the pin is either deformed or swollen enough to not allow proper insertion, even with minimal grease.

Where did you get the rebuild kit? Dealer?
Well first, my 2002 FSM shows the bushing on the top pin, not the bottom. So you might just have the pins reversed.

I ordered my caliper seal kit from SubaruGenuineParts.com and had it in about 2 days. One kit has all the parts for both sides.

Last edited by Wade-O; 04-27-2011 at 11:48 PM.
Wade-O is offline   Reply With Quote
Old 04-28-2011, 12:04 AM   #12
2:43AM
Scooby Specialist
 
Member#: 190273
Join Date: Sep 2008
Chapter/Region: MWSOC
Location: NW-IN
Vehicle:
05 WRX evoIII-16G
WRB

Default

Hmm. My 04-05 service manual shows no bushings for either pin on the front...only on the rear brake, bottom pins. Unless the image is drawn incorrectly where the "bushing" shown is present, but it doesn't match the pin shape. #17 in the first diagram (for front brakes) and #33 in the second diagram (for rear brakes). In the first diagram, #17 vs. #8 doesn't make any sense.

Did I somehow swap these pins into the wrong places during my last brake job?







I do know one thing for sure. This is ****ing ridiculous!
2:43AM is offline   Reply With Quote
Old 04-28-2011, 12:13 AM   #13
2:43AM
Scooby Specialist
 
Member#: 190273
Join Date: Sep 2008
Chapter/Region: MWSOC
Location: NW-IN
Vehicle:
05 WRX evoIII-16G
WRB

Default

And is this stuff OK for the pins and bushings? This is what I am CURRENTLY trying to use (before giving up when the bottom pin would not push into the caliper).



But thinking about returning it, and buying this instead, which seems more appropriate:


Last edited by 2:43AM; 04-28-2011 at 12:19 AM.
2:43AM is offline   Reply With Quote
Old 04-28-2011, 12:51 AM   #14
2:43AM
Scooby Specialist
 
Member#: 190273
Join Date: Sep 2008
Chapter/Region: MWSOC
Location: NW-IN
Vehicle:
05 WRX evoIII-16G
WRB

Default

And YES this seems like a one sided conversation, but I just trimmed my "swollen" bushings by about 1/16" with a razor blade. The pin slid into the housing with ease. I suspect the sixteenth of an inch won't make a bit of difference in the long run.

Even with a future, "correct" lube, the pin would STILL refuse to go in. Therefore, since I will continue to use the existing bushings, the cut was necessary.
2:43AM is offline   Reply With Quote
Old 04-30-2011, 04:40 PM   #15
SamwiseTheBrave
Scooby Newbie
 
Member#: 281509
Join Date: Apr 2011
Default

FYI, O'Reilly Autoparts has a pin kit for 4.29 that includes two of those little rubber grommets. The pin boots in this kit are too small, but they got the grommets the right size. My dealership wanted 35 for a seal kit. No way!

The O'Reilly ones work great. Kind of a stupid design on Subaru's part. They are so hard to get in with all the air compressed behind them.
SamwiseTheBrave is offline   Reply With Quote
Old 05-01-2011, 05:03 PM   #16
Wade-O
Scooby Newbie
 
Member#: 31190
Join Date: Dec 2002
Chapter/Region: NWIC
Location: Southern Orygun
Vehicle:
2002 WRX Sportwagon
Alpine White

Default

The OEM caliper rebuild kit only cost me $20 from SubaruGenuineParts.com (aka Chaplin's Subaru). It's way overkill if you only need those bushings though. O'Reilly's (aka Shuck's) only pulled up the same kit in their parts search, and their price was only a couple bucks cheaper and they had to order it, so I went with the OE kit. Of course mine is an 02, so things might be different for the newer model years.
Wade-O is offline   Reply With Quote
Old 05-06-2011, 02:54 PM   #17
ezil71
Scooby Specialist
 
Member#: 207118
Join Date: Mar 2009
Chapter/Region: NWIC
Location: West Linn, OR
Vehicle:
2003 Wrx Wagon

Default

I suspect the swelling is due to getting brake parts cleaner on the rubber boot section. Lessoned learned on that one! Take off the rubber part before cleaning up the pins.
ezil71 is offline   Reply With Quote
Old 05-23-2011, 06:22 PM   #18
samo22
Scooby Newbie
 
Member#: 119693
Join Date: Jul 2006
Location: CA
Vehicle:
1995 L w/ ej205
Aspen White

Default

I too am having a similar issue with the duralast guide pin having a hard time fitting into the caliper bracket pin hole. I noticed on the duralast one, the three equally spaced flat surfaces that run concentric along the pin ends about half inch shorter than the oem one, which is causing the pin to hit the caliper bracket hole early and gets stuck. There are other minor differences such as duralast one is .1mm larger diameter than OEM and the duralast flat surfaces are slightly wider. I thought about grinding down the pin to increase length of the flat surfaces but I'd probably need to paint it to prevent rust, and that's too much of a trouble. I guess I am ordering a OEM guide pin from a subaru dealer.
samo22 is offline   Reply With Quote
Old 05-23-2011, 07:44 PM   #19
A5un
Scooby Newbie
 
Member#: 174095
Join Date: Mar 2008
Location: SoCal
Vehicle:
2011 EVO X MR
White

Default

I did a LGT front brake swap onto my car some months ago, and during the process I had rebuilt the calipers with OE kit. Contained in the kit were two little packets of grease, a red one and a pink one. Along with them came a note that said something to the effect of "any other grease is not okay!" I'm not sure what's so special about these grease, but just letting people know that's what they said.
A5un is offline   Reply With Quote
Old 07-01-2011, 09:58 PM   #20
the dude
Scooby Newbie
 
Member#: 94542
Join Date: Aug 2005
Chapter/Region: RMIC
Location: Casper, Wy
Vehicle:
2002 WRX wagon
WRB

Default

bump. any definitive answer on if the guide pin or lock pin is on the top or bottom of the caliper?
the dude is offline   Reply With Quote
Old 07-01-2011, 10:48 PM   #21
Sir-Knight
Scooby Specialist
 
Member#: 73636
Join Date: Nov 2004
Chapter/Region: E. Canada
Location: the 'wa, ontario, canada
Vehicle:
2007 Impreza 2.5i SE
newport blue pearl

Default

lock on the bottom
Sir-Knight is offline   Reply With Quote
Old 07-02-2011, 12:57 AM   #22
the dude
Scooby Newbie
 
Member#: 94542
Join Date: Aug 2005
Chapter/Region: RMIC
Location: Casper, Wy
Vehicle:
2002 WRX wagon
WRB

Default

cool. thanks man!
the dude is offline   Reply With Quote
Old 07-03-2011, 01:56 PM   #23
Wade-O
Scooby Newbie
 
Member#: 31190
Join Date: Dec 2002
Chapter/Region: NWIC
Location: Southern Orygun
Vehicle:
2002 WRX Sportwagon
Alpine White

Default

This is the rear brake assembly diagram from the 2002 FSM:


Last edited by Wade-O; 07-03-2011 at 02:29 PM.
Wade-O is offline   Reply With Quote
Old 07-03-2011, 02:06 PM   #24
vr6vdub172
Scooby Newbie
 
Member#: 287291
Join Date: Jul 2011
Chapter/Region: MAIC
Vehicle:
01 VW

Default

This stuff works great. Use it on every brake job I do for caliper slide pins. Can get it in different quantities as well.

http://shop.advanceautoparts.com/1/1...art-09977.html
vr6vdub172 is offline   Reply With Quote
Old 07-06-2011, 10:43 PM   #25
drummerdude
Scooby Newbie
 
Member#: 255999
Join Date: Aug 2010
Location: London, On
Vehicle:
2002 Impreza RS 5MT
blue

Default guide pins

I just replaced my pads due to a seized guide pin, while waiting for the new guide pins to come in, I got the old one out, cleaned it up and lubed it, it now slides okay.

The guide pins came in today and they are about a half inch to an inch longer than the oem ones. the oem pins, one has a rubber bushing on it, the other doesn't, on the new pins, neither had any rubber on it.

My questions is are these supposed to be trimmed, cause otherwise, all the replacement ones I pull up (that have pictures) look to be about the same length, and is the rubber bushing needed?

Last edited by drummerdude; 07-06-2011 at 10:50 PM.
drummerdude is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Guide Pins? Lock Pins? WTF! T Wrex--OH Brakes, Steering & Suspension 5 04-04-2009 01:41 AM
caliper lock pin - seized up all the time - common? MrZone Brakes, Steering & Suspension 3 05-26-2006 09:55 PM
Guide pin vs. lock pin Legacy777 Brakes, Steering & Suspension 8 12-09-2004 09:52 AM
Hi-Temp Grease = Caliper Grease? Hank3 Brakes, Steering & Suspension 6 08-16-2004 05:39 PM
guide and lock pins eastbaysubaru Brakes, Steering & Suspension 4 09-17-2001 11:54 AM


All times are GMT -4. The time now is 11:41 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.