Dear brembo pin
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Joined: 03-26-08
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From: Somewhere, MI
Passenger side came off with no real issues, I lubbed those up greatly (like I do with all brake parts). I didn't even know about the stuck pin problem until I got to the last pin and had to research it.
What a shitty design for US climates.
New caliper is one option, anyone ever have luck with moar heat (aim to heat the pin or the aluminum?) and moar pounding? Even if I put it back together the pads are now soaked with PB blaster ugh...
What a shitty design for US climates.
New caliper is one option, anyone ever have luck with moar heat (aim to heat the pin or the aluminum?) and moar pounding? Even if I put it back together the pads are now soaked with PB blaster ugh...
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Joined: 03-26-08
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From: Somewhere, MI
Likely cause is dissimilar metal corrosion effectively welding the spring clip to the caliper. Lube has a chance of getting between the metals and preventing that. I should bother my extended brother in law about this seeing how he worked on this brake program at GM.
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From: Connecticut
^^this. The pins need a high temp antisieze, not so much a lube.
Something that worked for me was spraying the pins down with penetrating lube the night before and then going for a nice "spirited" drive right before doing the job to put some good heat in the calipers. Tapped the pins loose, had a beer while the brakes cooled down enough to handle and then went to town.
It's a good habit to also replace the pins and hardware every brake pad service too just to be safe. It's just cheap insurance.
Something that worked for me was spraying the pins down with penetrating lube the night before and then going for a nice "spirited" drive right before doing the job to put some good heat in the calipers. Tapped the pins loose, had a beer while the brakes cooled down enough to handle and then went to town.
It's a good habit to also replace the pins and hardware every brake pad service too just to be safe. It's just cheap insurance.
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From: Connecticut
I just did mine recently and it was a bitch. I heated the hell out of those pins and also used P.B. blaster. I could only get them out a little bit so I had to punch them back in but then they came out pretty easy. I lubed them pretty good. I was gonna use anti-sieze but was unsure about it. Good to know it's safe and will be using that when I service the pins on my next oil change.
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Joined: 03-26-08
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From: Somewhere, MI
I just gave up for now and reassembled the caliper. I'll try again when I have spare pins, still not sure how to get the pin out short of a new caliper which really seems unnecessary for the problem at hand.
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Joined: 03-26-08
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From: Somewhere, MI
No laughing occurred.
I don't have a spare car and don't have spare parts so I can't get destructive at this point in time either.
A can of Free All and a bar of goodness, aka breaker bar. If not the bar, at least the Free All. Far superior penetrating fluid than Pb Blaster. Then anti seize them things.
Breaker bar? More forum help you dont need. You did fine, its just takes more heat than you used. The problem is that there is a point where you can potentially put enough heat in it to melt /wreck the caliper. It helps to have done it a few times...
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Joined: 03-26-08
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From: Somewhere, MI
Yea neither the propane nor the mini mapp torch I have throw out a lot of heat. I kinda wonder if a punch plus an air chisel could work if the pin was excited to a resonance frequency. (More of a thought experiment than anything)
