Brakes Binding

[Commuter_Tim]

Both the Front and Rear Brakes are binding on my CB500.
I'm used to servicing drum brakes so this is all new.

The front wheel free spins less than a quarter of a turn.
The pads only have say 2-3mm left by my estimation, but the fluid is at max in the reservoir, shouldn't that have lowered somewhat when the pads wore down?
(Old brake fluid from previous owner, more fluid ordered but hoping to fix this before then)

Noob Question, assuming the fluid has been topped up too much (At first I thought sticking pistons but the fluid levels made me wonder)
If I syringed some brake fluid out of the top of the reservoir, might that relieve some pressure to let the pads unstick?
(I have used about 800ml of brake cleaner in the past week)


Cheers
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The above post is most likely nonsensical.

I ride a Bandit 600... badly.

[SQL]

Sliding caliper?

[Vincent]

Quite often the pistons in the caliper seize due to corrosion pushing the seals out of their grooves. You could have a close look to see if the seals are popping out and see how easy it is to push the pistons back in. It's quite easy to clean them up, just make sure you don't damage the pistons getting them out as they can be expensive to replace, (remove the caliper and use the brake pressure to remove them). If you have more than one piston in each caliper, push one nearly all the way then block it so the other one comes out.
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Space Is Deep

[Commuter_Tim]

[Raffles]

[SQL]

A beer says the sliding part is all gummed up, pull them apart, clean the pins up, rubber grease them caliper good as new

[pdg]

[Commuter_Tim]

Well, this is BCF, so now that you have given me an answer I don't like, I believe protocol dictates I get all pissy and rant until I get an answer I do like.

Really though, cheers for confirming what I thought might be the case, was pinning my hopes on being wrong initially but I suppose I best just ride the CG til the DOT4 arrives and I get a day off work to do it during daylight hours.

Cheers fellas
____________________
The above post is most likely nonsensical.

I ride a Bandit 600... badly.

[Commuter_Tim]

As far as the fluid, looked to be around about the max line or above, will double check in the morning.
I neglected to check the actual level of the fluid on purchasing the bike not long ago, and had it in with a "mechanic" to safety check over immediately.
However that guy even left the locknuts spinning on both sides of the rear wheel, guess he cba?

There is every possibility some numpty has overfilled the reservoir when the pads were already worn.
So, would there be any harm done by removing a little fluid?
____________________
The above post is most likely nonsensical.

I ride a Bandit 600... badly.

[mentalboy]

[Vincent]

[Raffles]

[Vincent]

Aye......you always want the system to be full IIUC....so the fluid can't absorb any air. The rubber diaphragm is there to help.*



* Try telling the pope that!
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Space Is Deep

[pdg]

[Commuter_Tim]

Shit, you calling it a "sliding pin" has just possibly hit on the cause.
I was not aware that was the name, but both mine are fucking caked in rust.
I had assumed they were merely to stop the pads coming out, not helping with alignment, but now I think of it how could the pads move freely when the pin slides through both...

Definitely taking some wire wool to those pins tomorrow (Today!)

TY
____________________
The above post is most likely nonsensical.

I ride a Bandit 600... badly.

[mentalboy]

[Taught2BCauti...]

[mentalboy]

[SQL]

[mentalboy]

[Commuter_Tim]

Well I tried removing the caliper and cleaning it all, the pads were so rusty they were screaming for help from BCF.

Oddly after I pumped the pistons in and out a bit whilst cleaning over and over, the hydraulic fluid level has dropped to somewhere near the min level, (is it possible air was in the lower part, now in top of reservoir? )

Whilst the pistons do move somewhat freely in and out, annoyingly it did not fix the problem.
I managed to remove the caliper along with bracket easy enough, but my slider pins do not slide
I could not figure out how to remove the dust boot (number 1 below) or slider pins (I was getting them confused with the pad retainer pin before)
I guess I will need to have another go at it saturday.

https://www.lingshondaparts.com/hpl/images/13MY5WEA/imge/F__0901.jpg

TL:DR wheel now spins about a third of a turn, is it damaging/dangerous to ride 3-4 miles each way daily in such condition? (temporarily)
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The above post is most likely nonsensical.

I ride a Bandit 600... badly.

[mentalboy]

Boot #1 (the long one not the grommet type one presumably) is usually a little tricky to remove. If you are careful you can feed the bulbous closed end into the hole it's located in using a small screwdriver but be careful not to puncture the rubber. Sometimes the same thing can be done with a pair of pliers but this is usually trickier. Many people are tempted to pull through the other way and this usually results in the rubber ripping.

You can clean the inside of the boot reasonably well with a jeweller's type screwdriver and won't have to remove it.


This can only be done once the caliper is in two parts, you don't actually have to undo the pins from their bodies unless the whole lot is jammed up and won't come apart - this usually happens when the pins have been bent. If you can get the two body parts separated then make an assessment of the state of the pins and replace if necessary. You're lucky that it's a Honda and these pins are removable and usually widely available (conversely I've only ever had to deal with bent Honda pins).
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Make mine a Corona.

[Commuter_Tim]

So you are meant to literally pull on the plate holding the slider pins to seperate from the main body then?
I felt a mm or 2 of movement.

Haynes simply says "pull the caliper off the caliper bracket, noting how it fits"
I figured I was doing it wrong.
____________________
The above post is most likely nonsensical.

I ride a Bandit 600... badly.

[mentalboy]

[Commuter_Tim]

Success! ...sort of, I stripped the caliper and cleaned as much as I could, still could not entirely free off the sliding pins, but it has enough travel for the wheel to do a full turn, good enough for now!

Cheers again for the help.
____________________
The above post is most likely nonsensical.

I ride a Bandit 600... badly.