SuzukiSavage.com - New 2015 S40...deceleration whine & noisy disc

Art Webb Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 3007 columbus, Texas Gender:	Re: New 2015 S40...deceleration whine & noisy disc Reply #30 - 05/10/16 at 07:17:23 JOG is giving you good advise, if the caliper can't float, it'll cause problems
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Albert Verdugo Junior Member Offline Riding is freedom! Posts: 91 Baja California Gender:	Re: New 2015 S40...deceleration whine & noisy disc Reply #31 - 05/14/16 at 11:15:00 It is hard to move the piston, so I will clean it very well, tnx for the advices JOG and ArtWebb
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justin_o_guy2

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Re: New 2015 S40...deceleration whine & noisy disc
Reply #32 - 05/14/16 at 12:01:37

The piston is gonna be a bit of a struggle to move. Once it IS moved, then the entire caliper should be able to slide back and forth on the pins. If not, that is where to put some oil and push and pull until it moves easily. If that doesn't work, then remove the caliper and clean up the pins and holes , lube, reassemble, test.
The better the piston moves, yes, the easier the pads move off the disk. The brakes cool better, you're not spending horsepower on brakes dragging, lots of pluses. Fancy racing brakes positively disengage the pads from the disk when you let off the brake. Standard brakes rely on vibration to settle away from the disk and they are not usually completely off the disk.

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Albert Verdugo Junior Member Offline Riding is freedom! Posts: 91 Baja California Gender:	Re: New 2015 S40...deceleration whine & noisy disc Reply #33 - 05/14/16 at 16:41:35 what kind of oil i should use?
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justin_o_guy2

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Re: New 2015 S40...deceleration whine & noisy
Reply #34 - 05/14/16 at 19:14:44

Depends. If it's sticky but moving, penetrating oil. Kroil, PB Blaster, 50/50 mix of transmission fluid and , heck, can't remember... someone will.
If it's not stuck, a few drops of motor oil, Three in One, or, if you have it apart, some Antisieze goes a long way.

It's a skills level/ judgment thing.
It's Got to float in and out. That's a must. Same thing is true about the car brakes. People slap pads on and wonder why they wear out one side.

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Albert Verdugo Junior Member Offline Riding is freedom! Posts: 91 Baja California Gender:	Re: New 2015 S40...deceleration whine & noisy disc Reply #35 - 05/15/16 at 14:13:15 Tnx, its moving but really hard, I have penetrating oil, i will go with that
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justin_o_guy2

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Re: New 2015 S40...deceleration whine & noisy disc
Reply #36 - 05/15/16 at 14:29:23

With the piston pressed into the caliper and the pads away from the disk, the caliper is supposed to slide easily on the pins.
Push it one way, clean the pins up, push the other way, clean up the pins.
You can take it apart and clean and lube or get serious with it and wrestle with it.
You Might have no choice but take it apart...
But, I would wrestle a while before I walked into it.

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Albert Verdugo Junior Member Offline Riding is freedom! Posts: 91 Baja California Gender:	Re: New 2015 S40...deceleration whine & noisy disc Reply #37 - 05/15/16 at 17:44:48 I took aparta the other parts, changed the fluid, butI did not had the guts to take apart the piston. Tomorrow i will go to a mechanic.
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: New 2015 S40...deceleration whine & noisy disc Reply #38 - 05/15/16 at 17:50:22 Sorry to hear it.
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Albert Verdugo Junior Member Offline Riding is freedom! Posts: 91 Baja California Gender:	Re: New 2015 S40...deceleration whine & noisy disc Reply #39 - 05/15/16 at 20:48:11 I t started to move easier but not enough, maybe the dust seal is very dirty and need to be replaced. But thanks a lot!
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: New 2015 S40...deceleration whine & noisy Reply #40 - 05/15/16 at 21:01:27 What are you trying to move? Once the piston is pushed in and the brake pads pushed away from the disk, the dust seal is not part of the equation. What have you actually Done to clean the pins?
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Albert Verdugo Junior Member Offline Riding is freedom! Posts: 91 Baja California Gender:	Re: New 2015 S40...deceleration whine & noisy Reply #41 - 05/15/16 at 23:18:29 just used brake cleaner on the piston and the pin after removing the brake pads.
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: New 2015 S40...deceleration whine & noisy disc Reply #42 - 05/16/16 at 00:40:04 Well, read my posts. Brake cleaner isn't oil.
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Art Webb

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Re: New 2015 S40...deceleration whine & noisy disc
Reply #43 - 05/16/16 at 08:50:16

Ok, do this before seeing a mechanic
Pull the caliper off the bike
do not disconnect the hose
push the piston back into the caliper till you feel it seat
clean the pins
apply anti seize or grease to the pins
reinstall the caliper, but don't touch the brake lever
does the caliper slide freely on the pins? you should be good
if the caliper still doesn't slide on the pins, not so much
if the caliper slides smoothly on the pins but the brakes are still sticking, then you go after the caliper

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justin_o_guy2

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Re: New 2015 S40...deceleration whine & noisy disc
Reply #44 - 05/16/16 at 11:05:51

I said lube.
He asked
What kinda oil can I use?
Pretty sure I didn't suggest brake cleaner.

I can't really See the diagram as well as I would like, but im thinking the

clean the pins

part might be a bit beyond the skill set. I don't think he really understands what they are.

The internals of the caliper is usually dependable, those pins corrode, steel and aluminum, but I don't know how to better explain how to do it.

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