Well I got crackin' back at it a bit again tonight.
I turned the lights and heater on out in the shed and then went back after an hour or so.
I went to grab a ratchet to unbolt the front caliper's and this is what I found.
That's one tough night to be out.
16 degree's below freezing with LOTTSSA moisture in the air. That FEELS cold. If the air were dryer it would be much more bearable but nonetheless, I digress.
So due to the extreme temperature's in Canada this week I wasn't able to stay out long.
I pulled the pins out of the front calipers and the left side seemed satisfactory but the right side of the bike looked like this.
Juicy, or should i say "Crusty". I took a look and the boots over the pins on that side and they are feeble at best with no elasticity left in them. Normally I could blame that on the current temperature outside but from the look of these pins, the boots have been too stiff for quite some time now.
So I got the calipers off and up on the bench, relocated my heater to face right against my fingers and then attempted to pop the pistons out using my compressor, a good penetrating oil, and pair of slip-joints covered with a thick rag. Usually I can get them out far enough that I can use the pliers to simply spin the piston inside the caliper (coupled with the rag so I don't scratch it) and it'll pop the rest of the way out, however tonight things Just didn't want to budge! I got the caliper warmed up a bit with a light propane torching around the circumference (I'm replacing all the seals anyways) and then hit it with the penetrating oil which got it moving and have now moved it quite far but it won't come the last 25% out. So I tried to hit it with the air. I turned on my compressor and it just bogged and flipped the breaker. So I lost my lights and heat.
Needless to say that by that time, my night was over.
I've got tenants in my basement so I can't just run down there and flip it back on. Kind of annoying but when the check comes in at the start of the month, all that annoyance goes away for some reason.
Anyways, I brought the calipers inside. Wrapped them up in a clean rag and put them on a shelf high-up in my kitchen so that they warm up prior to my next outing.
Without a warm air compressor though, I'm going to have a hard time, popping the pistons out..... Unless I use the rear brake system to push it out, which seems like a bit of a shame considering I just reassembled it and bled it. Oh well, the biggest loss would be some fluid but I have lots so maybe I'll just do that next time (Thinking out loud).
Then I came back inside, warmed up and ordered parts online.
Piston boots
Piston seals
Rubber bleeder caps
Caliper pin boots
I've also asked my local parts store for a quote on new caliper pins themselves in case the pitting is too bad to salvage them with a wire-wheel. I didn't check that tonight but probably should've before I came back in.
If their cheap I'll probably just buy a set anyways. It's not likely that they are cheap though. Most of the crustation on these was dried grease so hopefully I can bring them back to life with the wire-wheel.