Rear brake pin dust cover seized

[DryRob]

The dust cover on my rear caliper retaining pin is seized.
Don't know if it was over tightened or has corroded. Doesn't matter though, it's definately stuck.
Thankfully the pads have some life in them so not a problem yet.
Any ideas for getting it out beyond penetrating oil/heat/drilling?

[tom_e]

Originally Posted by DryRob

Any ideas for getting it out beyond penetrating oil/heat/drilling?

Unfortunately they're really your only options if it's properly stuck in there.
Might be worth getting a punch and giving it a good whack with a hammer first just to see if that'll break the corrosion.

[DryRob]

Thought so

[maviczap]

Sometimes you can grab them with mole grips and wiggle them loose, but you'll need replacements.

I presume you mean the pad retaining pins?

Try soaking in penetrating fluid for a couple of days before trying.

Worst case drill the calliper behind the end of the pin and use a long thin punch to get them out.

The calliper will still be useable if you use a drill bit smaller than the pin.

Another option is to split the calliper, and then that gives you easier access to the pins. But most likely the bolts holding the calliper will be seized solid too.

Buy stainless pins to replace the originals

[tom_e]

It sounds like he means the small grub screw that covers the top of the pad pin, rather than the pin itself.

Sent from my XT1580 using Tapatalk

[DryRob]

Aye, the dust cover grub screw thing. Will get some oil on it and go from there

[maviczap]

Ah me curvy don't av dem

[R1ffR4ff]

Check out this video on homemade rust release.

https://www.youtube.com/watch?v=KNbw8V8HZDY

I've used a 50/50 mix of old brake fluid and Acetone(Nail polish remover) with good effect.



I also have one of these,

http://www.ebay.co.uk/itm/New-Weldin...IAAOSwv-NWVwOD

Which is excellent for applying heat to very specific areas when releasing corroded fasteners.


HTH

[Fen Tiger]

If it's the same as my pointy it is not easy to get straight onto that grub screw as the exhaust is in the way. You might have some luck with an impact screwdriver. This worked for me on an old Honda with similar stuck pad pin screws. Obviously just go gently bearing in mind what you are hitting against.

[Taipan]

Try using a socket set with a screwdriver bit in it. You get so much more leverage like this and it'll normally do the job. Or you can get the screwdriver things below on eBay for a couple of quid and they'll give good leverage.

A big, long screwdriver is another option. Bigger, thicker handle means you get more torque when you twist. Also good if you can hold it steady enough and use vice grips on the handle for more leverage.

Last resort and only if you can get someone to push against it from the other side you could try a quick whack with an impact driver. I'd only try one or two shots at this with some pushing against it though. It wouldn't be ideal knocking seven bells out of it!