cleaning contaminated discs?

Given the subject you're going to be ahead of me with this story....

So drag the bike out of the garage for a ride after a weekend of
plumbing around the house, to clear my head, and ride some lanes[1]..
might even pop in and see my old mum. "Humm what are all those white
streaks on the bike?" probably didn't polish it off properly last
time. Hop on bike, ride down drive, apply brakes, Apply Brakes, APPLY
BRAKES - shiiiiiittttttttt. Virtualy nothing. ride it back to garage.
8 yo son wanders up from down the road "Did you spray anything on the
bike?" "Yes" points to WD 40. "Did you spray the brakes?" "yes".
Doctors reckon he'll be released by the end of the week.

Anyway, I'll get some new pads, as when I took them out, they were
clearly knackered. I've used a load of spray-on brake cleaner, and
kitchen roll to try and clean the discs, but never had to do this
before. Any advise other than keep going with the brake cleaner until
I get the pads?

cheers

SS


[1] KTM 990 Adv so dirty lanes as well

 

Do a few high speed stops.

 

Tell you lad that you're writing him out of you will and have cancelled
all life insurance cover.

 

Nitromors. Smear over both sides of the disk, scrub off with clean kitchen
roll (use gloves) then wash off with water. It will remove any organic-type
substance such as oil, grease etc.

 

Do a few high speed stops.

Yes I tried that - the speed was easy, the stop revealed that they
were not brakes, they were "influencers", as it did influence the
speed

cheers

SS

 

haven't come acrosThanks - this before - I take it the "general
purpose" one is the can of choice? [1}

cheers

Markie

[1] http://www.makingdiyeasier.co.uk/nitromors/pvremovers.html

 

How much did get blathered on them?

I have dripped oil on my brakes before today & just gone out at full
tilt & braked very heavily, all good after a few good high speed pull ups.

 

Not sure how much - from a very sheepish/upset 8 yo it appears this
happen a day or two ago, and knowing his way, I'd imagine he was
having a real hoot with the WD40. The inside of the carriers were
soaked. Really there was no braking effect at all. After a few mins up
and down the road, it was not getting any better, so discretion being
the better part and all that, I gave up.

He doesn't "think" the rear was done, so once the front is sorted I'll
check it out - seemed OK on the road, but TBH rear's on KTM Adv's
aren't all that much anyway.

cheers

Markie

 

haven't come acrosThanks -  this before - I take it the "general

Bad form etc - but cocked that right up! - like father like son.

cheers

Markie

 

If your playing with nitromoors keep it away from your tyres , wheel
rims and the wheel bearings too

 

Cellulose thinners should help but take care not to get it on the paint.
Ride it against the brake until the disk glows red and burns the oil off.
This will probably not do the pads much good so do it before you
change the pads.

 

120 down to 10

 

Don't forget WD40 is a light oil, with lots of solvents specially
designed to help penetrate. Dripping a little engine oil will just
coat the pad surface; a good spray with WD40 could completely soak
them.

 

Don't talk such cock. For a bit of WD40 ?

Plenty of brake cleaner on the discs (including the ventilation/pad
cleaning holes) and change the pads if they got saturated with WD40.

Paul.

 

The cable operated drum on the front of the Armstrong is the most
frightening thing on the bike.

Top speed of 90 allegedly, but it's not safe over 50 with such
shocking front anchors.

The back brake is fine.

Paul.

 

The WD40 will have soaked into the pads so it will need to be boiled out.
DAMHIKT

 

He's already said they're beyond repair.

 

So it's a good job the OP said he was changing the pads....

You really are a thick **** aren't you?

 

Just carb/brake cleaner will do. If you like you could use a strong
solution of detergent but make sure you protect the bearings from any
splashing - so-called sealed bearings sometimes aren't.

 

Phew, that's what I was hoping for. Thanks mate.

I probably won't be able to get to a dealers for a few days, so I'll
do it a couple of times during the week. I'm "hoping" the outside got
the worst of it, as it's a bugger trying to get between the inside
surface of the disk and the spokes.

cheers

SS